AD9233-125EBZ Analog Devices Inc, AD9233-125EBZ Datasheet

1.8V 12Bit 125 Msps ADC EB

AD9233-125EBZ

Manufacturer Part Number
AD9233-125EBZ
Description
1.8V 12Bit 125 Msps ADC EB
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD9233-125EBZ

Number Of Adc's
1
Number Of Bits
12
Sampling Rate (per Second)
125M
Data Interface
Serial
Inputs Per Adc
1 Differential
Input Range
1 ~ 2 Vpp
Power (typ) @ Conditions
455mW @125MSPS
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Utilized Ic / Part
AD9233
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
FEATURES
1.8 V analog supply operation
1.8 V to 3.3 V output supply
SNR = 69.5 dBc (70.5 dBFS) to 70 MHz input
SFDR = 85 dBc to 70 MHz input
Low power: 395 mW @ 125 MSPS
Differential input with 650 MHz bandwidth
On-chip voltage reference and sample-and-hold amplifier
DNL = ±0.15 LSB
Flexible analog input: 1 V p-p to 2 V p-p range
Offset binary, Gray code, or twos complement data format
Clock duty cycle stabilizer
Data output clock
Serial port control
APPLICATIONS
Ultrasound equipment
IF sampling in communications receivers
Battery-powered instruments
Hand-held scopemeters
Low cost digital oscilloscopes
GENERAL DESCRIPTION
The AD9233 is a monolithic, single 1.8 V supply, 12-bit, 80 MSPS/
105 MSPS/125 MSPS analog-to-digital converter (ADC), featuring
a high performance sample-and-hold amplifier (SHA) and on-
chip voltage reference. The product uses a multistage differential
pipeline architecture with output error correction logic to
provide 12-bit accuracy at 125 MSPS data rates and guarantees
no missing codes over the full operating temperature range.
The wide bandwidth, truly differential SHA allows a variety of
user-selectable input ranges and offsets, including single-ended
applications. It is suitable for multiplexed systems that switch
full-scale voltage levels in successive channels and for sampling
single-channel inputs at frequencies well beyond the Nyquist rate.
Combined with power and cost savings over previously available
ADCs, the AD9233 is suitable for applications in communications,
imaging, and medical ultrasound.
A differential clock input controls all internal conversion cycles. A
duty cycle stabilizer (DCS) compensates for wide variations in the
clock duty cycle while maintaining excellent overall ADC
performance.
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
Built-in selectable digital test pattern generation
Programmable clock and data alignment
IS-95, CDMA-One, IMT-2000
12-Bit, 80 MSPS/105 MSPS/125 MSPS,
1.8 V Analog-to-Digital Converter
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
SENSE
The digital output data is presented in offset binary, Gray code, or
twos complement formats. A data output clock (DCO) is provided
to ensure proper latch timing with receiving logic.
The AD9233 is available in a 48-lead LFCSP and is specified
over the industrial temperature range (−40°C to +85°C).
PRODUCT HIGHLIGHTS
1.
2.
3.
4.
5.
REFB
VREF
REFT
VIN+
VIN–
The AD9233 operates from a single 1.8 V power supply
and features a separate digital output driver supply to
accommodate 1.8 V to 3.3 V logic families.
The patented SHA input maintains excellent performance
for input frequencies up to 225 MHz.
The clock DCS maintains overall ADC performance over a
wide range of clock pulse widths.
A standard serial port interface supports various product
features and functions, such as data formatting (offset
binary, twos complement, or Gray coding), enabling the
clock DCS, power-down, and voltage reference mode.
The AD9233 is pin compatible with the AD9246, allowing
a simple migration from 12 bits to 14 bits.
SELECT
SHA
REF
FUNCTIONAL BLOCK DIAGRAM
AGND
A/D
AVDD
0.5V
MDAC1
©2006 Analog Devices, Inc. All rights reserved.
4
CORRECTION LOGIC
DUTY CYCLE
CLK+
STABILIZER
Figure 1.
OUTPUT BUFFERS
CLOCK
AD9233
1 1/2-BIT PIPELINE
CLK–
8-STAGE
13
8
SELECT
PDWN
MODE
AD9233
www.analog.com
DRVDD
A/D
DRGND
3
OR
DCO
D11 (MSB)
D0 (LSB)
SCLK/DFS
SDIO/DCS
CSB

Related parts for AD9233-125EBZ

AD9233-125EBZ Summary of contents

Page 1

... Battery-powered instruments Hand-held scopemeters Low cost digital oscilloscopes GENERAL DESCRIPTION The AD9233 is a monolithic, single 1.8 V supply, 12-bit, 80 MSPS/ 105 MSPS/125 MSPS analog-to-digital converter (ADC), featuring a high performance sample-and-hold amplifier (SHA) and on- chip voltage reference. The product uses a multistage differential pipeline architecture with output error correction logic to provide 12-bit accuracy at 125 MSPS data rates and guarantees no missing codes over the full operating temperature range ...

Page 2

... AD9233 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 3 Specifications..................................................................................... 4 DC Specifications ......................................................................... 4 AC Specifications.......................................................................... 5 Digital Specifications ................................................................... 6 Switching Specifications .............................................................. 7 Timing Diagram ........................................................................... 7 Absolute Maximum Ratings............................................................ 8 Thermal Resistance ...................................................................... 8 ESD Caution.................................................................................. 8 Pin Configuration and Function Descriptions............................. 9 Equivalent Circuits ......................................................................... 10 Typical Performance Characteristics ........................................... 11 Theory of Operation ...

Page 3

... Changes to Digital Outputs Section .............................................21 Changes to Timing Section............................................................22 Added Data Clock Output (DCO) Section..................................22 Changes to Configuration Using the SPI Section and Configuration Without the SPI Section .......................................23 Changes to Table 15 ........................................................................25 Changes to Table 16 ........................................................................39 Changes to Ordering Guide...........................................................42 4/06—Revision 0: Initial Version Rev Page AD9233 ...

Page 4

... Full 138 155 Full 7 Full 12 Full 248 279 Full 261 Full 288 Full 40 Full 1.8 Rev Page AD9233BCPZ-125 Typ Max Min Typ Max 12 Guaranteed Guaranteed ±0.3 ±0.8 ±0.3 ±0.8 ±0.2 ±4.9 ±0.2 ±3.9 ±0.5 ±0.5 ±0.2 ±0.2 ±1.2 ± ...

Page 5

... Full −85.0 25°C −90.0 25°C −90.0 25°C 87 25°C 83 25°C 650 Rev Page AD9233 AD9233BCPZ-125 Typ Max Min Typ Max 69.5 69.5 69.5 69.5 68.3 69.4 69.4 68.9 68.9 69.2 69.2 69.2 69.2 67.3 69 ...

Page 6

... Full Full Full Full Full Full Full Full = 50 μA) Full = 0.5 mA) Full Full Full = 50 μA) Full = 0.5 mA) Full Full Full Rev Page AD9233BCPZ-80/105/125 Min Typ Max CMOS/LVDS/LVPECL 1.2 0.2 6 AVDD − 0.3 AVDD + 1.6 1.1 AVDD 1.2 3.6 0 0.8 −10 +10 −10 +10 8 ...

Page 7

... – – – – CLK AD9233 Max Unit 125 MSPS 125 MSPS ns 5.6 ns 4 cycles ns ps rms ms cycles ...

Page 8

... AD9233 ABSOLUTE MAXIMUM RATINGS Table 5. Parameter Rating ELECTRICAL AVDD to AGND −0 +2.0 V DRVDD to DRGND −0 +3.9 V AGND to DRGND −0 +0.3 V AVDD to DRVDD −3 +2 through D11 to DRGND −0 DRVDD + 0.3 V DCO to DRGND −0 DRVDD + 0 DRGND −0 DRVDD + 0.3 V CLK+ to AGND −0 +3.9 V CLK− ...

Page 9

... Common-Mode Level Bias Output. External Bias Resister Connection kΩ resister must be connected between this pin and analog ground (AGND). Power-Down Function Select. Clock Input (+). Clock Input (−). Output Enable (Active Low). Data Clock Output. No Connection. Rev Page AD9233 36 PDWN 35 RBIAS 34 CML 33 AVDD 32 ...

Page 10

... AD9233 EQUIVALENT CIRCUITS VIN Figure 4. Equivalent Analog Input Circuit AVDD 1.2V 10kΩ 10kΩ CLK+ Figure 5. Equivalent Clock Input Circuit DRVDD 1kΩ SDIO/DCS Figure 6. Equivalent SDIO/DCS Input Circuit DRVDD DRGND Figure 7. Equivalent Digital Output Circuit SCLK/DFS OEB PDWN Figure 8. Equivalent SCLK/DFS, OEB, PDWN Input Circuit CSB CLK– ...

Page 11

... Figure 15. AD9233-125 Single-Tone FFT with F = 2.3 MHz IN 0 –20 –40 –60 –80 –100 –120 –140 46.875 62.500 Figure 16. AD9233-125 Single-Tone FFT with F = 30.3 MHz IN 0 –20 –40 –60 –80 –100 –120 –140 46.875 62.500 = 70.3 MHz Figure 17. AD9233-125 Single-Tone FFT with F IN Rev ...

Page 12

... Figure 22. AD9233 Single-Tone SNR/SFDR vs. Input Frequency (F ) and Temperature with 1 V p-p Full Scale IN 1.0 0.8 OFFSET ERROR 0.5 0.3 0 GAIN ERROR –0.3 –0.5 –0.8 –1.0 – –40 TEMPERATURE (°C) Figure 23. AD9233 Gain and Offset vs. Temperature SFDR = +25°C 200 250 SFDR = +25°C 200 250 60 80 ...

Page 13

... FREQUENCY (MHz) Figure 24. AD9233-125 Two-Tone FFT with F IN1 0 125MSPS 169.1MHz @ –7dBFS –20 172.1MHz @ –7dBFS SFDR = 84dBc (91dBFS) –40 –60 –80 –100 –120 –140 0 15.625 31.250 FREQUENCY (MHz) Figure 25. AD9233-125 Two-Tone FFT with F = 169 ...

Page 14

... CLOCK FREQUENCY (MSPS) Figure 30. AD9233 Single-Tone SNR/SFDR vs. Clock Frequency (F ) with 100 SFDR DCS = ON 90 SFDR DCS = OFF DUTY CYCLE (%) Figure 31. AD9233 SNR/SFDR vs. Duty Cycle with F 90 SFDR SNR 65 0.5 0.7 0.9 INPUT COMMON-MODE VOLTAGE (V) Figure 32. AD9233 SNR/SFDR vs. Input Common Mode (V ) with ...

Page 15

... ADC. The output common-mode voltage of the AD8138 is easily set with the CML pin of the AD9233 (see Figure 37), and the driver can be configured in a Sallen-Key filter topology to provide band limiting of the input signal. Rev Page AD9233 ...

Page 16

... ANALOG INPUT At input frequencies in the second Nyquist zone and above, the noise performance of most amplifiers is not adequate to achieve VIN+ the true SNR performance of the AD9233. For applications AVDD where SNR is a key parameter, transformer coupling is the AD9233 recommended input. For applications where SFDR is a key ...

Page 17

... ADC AD9233 VIN– 0.1µF 0.1µF If the internal reference of the AD9233 is used to drive multiple converters to improve gain matching, the loading of the reference by the other converters must be considered. Figure 44 depicts how the internal reference voltage is affected by loading. Rev Page ⎛ + ⎞ ...

Page 18

... AD9233 to approximately 0.8 V p-p differential. This helps prevent the large voltage swings of the clock from feeding through to other portions of the AD9233 while preserving the fast rise and fall times of the signal, which are critical to a low jitter performance. CLOCK ...

Page 19

... Commonly, a ±5% tolerance is required on the clock duty cycle to maintain dynamic perform- ance characteristics. The AD9233 contains a DCS that retimes the nonsampling, or falling edge, providing an internal clock signal with a nominal 50% duty cycle. This allows a wide range of clock input duty cycles without affecting the performance of the AD9233 ...

Page 20

... ADCs. POWER DISSIPATION AND STANDBY MODE As shown in Figure 52 and Figure 53, the power dissipated by the AD9233 is proportional to its sample rate. The digital power dissipation is determined primarily by the strength of the digital drivers and the load on each output bit. The maximum DRVDD ...

Page 21

... Digital Output Enable Function (OEB) Manual, the The AD9233 has three-state ability. If the OEB pin is low, the output data drivers are enabled. If the OEB pin is high, the output data drivers are placed in a high impedance state. This is not intended for rapid access to the data bus. Note that OEB is referenced to the digital supplies (DRVDD) and should not exceed that supply voltage ...

Page 22

... AD9233 TIMING The lowest typical conversion rate of the AD9233 is 10 MSPS. At clock rates below 10 MSPS, dynamic performance can degrade. The AD9233 provides latched data outputs with a pipeline delay of 12 clock cycles. Data outputs are available one propagation delay (t ) after the rising edge of the clock signal. ...

Page 23

... SERIAL PORT INTERFACE (SPI) The AD9233 SPI allows the user to configure the converter for specific functions or operations through a structured register space provided inside the ADC. This provides the user added flexibility and customization depending on the application. Addresses are accessed via the serial port and can be written to or read from via the port ...

Page 24

... AD9233 MEMORY MAP READING THE MEMORY MAP TABLE Each row in the memory map table has eight address locations. The memory map is roughly divided into three sections: chip configuration registers map (Address 0x00 to Address 0x02), device index and transfer registers map (Address 0xFF), and ADC functions map (Address 0x08 to Address 0x18) ...

Page 25

... Flexible ADC Functions 10 offset Bit 5 Bit 4 Bit 3 Bit 2 Soft 1 1 Soft Reset Reset 0 = Off 0 = Off (Default) (Default 8-Bit Chip ID Bits 7:0 (AD9233 = 0x00), (Default) Open Open Child ID Open 0 = 125 MSPS 105 MSPS Open Open Open Open PDWN Open Open Internal Power-Down Mode 0—Full 000— ...

Page 26

... AD9233 Addr Parameter Bit 7 (Hex) Name (MSB) Bit 6 0D test_io 14 output_mode Output Driver Configuration 00 for DRVDD = 3 for DRVDD = 1 output_phase DCO Open Polarity 1 = Inverted 0 = Normal 18 VREF Internal Reference Resistor Divider 00—VREF = 1.25 V 01—VREF = 1.5 V 10—VREF = 1.75 V 11—VREF = 2. External Output Enable (OEB) pin must be high. ...

Page 27

... The CML pin should be decoupled to ground with a 0.1 μF capacitor, as shown in Figure 38. RBIAS The AD9233 requires the user to place a 10 kΩ resistor between the RBIAS pin and ground. This resister sets the master current reference of the ADC core and should have at least a 1% tolerance. ...

Page 28

... Figure 59 shows the typical bench characterization setup used to evaluate the ac performance of the AD9233 critical that the signal sources used for the analog input and clock have very low phase noise (<1 ps rms jitter) to realize the optimum performance of the converter ...

Page 29

... DEFAULT OPERATION AND JUMPER SELECTION SETTINGS The following is a list of the default and optional settings or modes allowed on the AD9233 Rev. A evaluation board. POWER Connect the switching power supply that is supplied in the evaluation kit between a rated 100 240 V ac wall outlet and P500. ...

Page 30

... AD9233 ALTERNATIVE ANALOG INPUT DRIVE CONFIGURATION This section provides a brief description of the alternative analog input drive configuration using the using this particular drive option, some components need to be populated as listed in Table 16. For more details on the differential driver, including how it works and its optional pin ...

Page 31

... SCHEMATICS RC0402 RC0402 RC040 2 RC040 2 RC0402 CC0402 2 HSMS281 2 HSMS281 RC0402 CC0402 CC0402 RC060 3 RC060 3 Figure 60. Evaluation Board Schematic, DUT Analog Inputs Rev Page AD9233 05492-058 CC0402 RC060 3 RC060 3 ...

Page 32

... AD9233 Figure 61. Evaluation Board Schematic, DUT, VREF, and Digital Output Interface RC060 3 Rev Page 05492-059 ...

Page 33

... CC0402 CC0402 RC0402 RC060 3 CC0402 CC0402 RC060 3 RC060 3 Figure 62. Evaluation Board Schematic, DUT Clock Inputs Rev Page CC0402 CC0402 CC0402 CC0402 RC0402 RC0402 RC0402 RC0402 S10 GND_PAD S10 S0 7 VREF 32 6 RSET RC0402 RC0402 RC0402 RC0402 RC0402 RC0402 AD9233 05492-057 ...

Page 34

... AD9233 RC0603 SDO_CH A RC0603 CSB1_CHA RC0603 SDI_CHA RC0603 SCLK_CH A RC0603 RC0603 RC0603 RC0603 RC0603 1 2 PICVCC PICVCC 3 4 GP1 GP1 5 6 GP0 GP0 7 8 MCLR-GP3 MC LR-GP3 RC060 Figure 63. Evaluation Board Schematic, SPI Circuitry Rev Page 05492-056 RC0603 ...

Page 35

... GND GND 1 1 GND GND GND CR500 1 2 Figure 64. Evaluation Board Schematic, Power Supply Inputs Rev Page AD9233 05492-055 TP509 TP512 TP511 TP510 ...

Page 36

... AD9233 EVALUATION BOARD LAYOUTS Figure 65. Evaluation Board Layout, Primary Side Figure 66. Evaluation Board Layout, Secondary Side (Mirrored Image) Rev Page ...

Page 37

... Figure 67. Evaluation Board Layout, Ground Plane Figure 68. Evaluation Board Layout, Power Plane Rev Page AD9233 ...

Page 38

... AD9233 Figure 70. Evaluation Board Layout, Silkscreen Secondary Side (Mirrored Image) Figure 69. Evaluation Board Layout, Silkscreen Primary Side Rev Page ...

Page 39

... Oscillator SMT 125 MHz or 105 MHz Connector PJ-102A DC power jack Connector 10 Pin Male, straight Rev Page AD9233 Supplier/Part No. Analog Devices, Inc. Panasonic LNJ314G8TRA HSMS2812 Micro Commercial Group SK33-TPMSCT-ND Micro Commercial Group S2A-TPMSTR-ND Amber LED Tyco, Raychem NANO SMDC110F-2 ...

Page 40

... AD9233 Omit Item Qty. (DNI) Reference Designator 29 6 R1, R6, R563, R565, R574, R577 30 5 R2, R5, R561, R562, R571 6 R10, R11, R12, R535, R536, R575 R7, R8, R9, R502, R510, R511 33 6 R500, R501, R576, R578, R579, R581 34 4 R503, R548, R549, R550 ...

Page 41

... IC SC70 Dual buffer IC SC70 Dual buffer IC 48-Lead Buffer/line driver TSSOP DUT 48-Lead ADC (AD9233) LFCSP IC 16-Lead Differential LFCSP amplifier Rev Page AD9233 Supplier/Part No. Microchip PIC12F629 Fairchild NC7WZ16 Fairchild NC7WZ07 Fairchild 74VCX162244 Analog Devices, Inc. AD9233BCPZ Analog Devices, Inc. AD8352ACPZ ...

Page 42

... AD9233BCPZRL7–105 –40°C to +85°C 2 AD9233BCPZ-80 –40°C to +85°C 2 AD9233BCPZRL7–80 –40°C to +85°C AD9233-125EB AD9233-105EB AD9233-80EB required that the exposed paddle be soldered to the AGND plane to achieve the best electrical and thermal performance . Pb-free part. ...

Page 43

... NOTES Rev Page AD9233 ...

Page 44

... AD9233 NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05492-0-8/06(A) Rev Page ...

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