AD7367-5ARUZ-REEL7 AD [Analog Devices], AD7367-5ARUZ-REEL7 Datasheet

no-image

AD7367-5ARUZ-REEL7

Manufacturer Part Number
AD7367-5ARUZ-REEL7
Description
True Bipolar Input, Dual 1us, 14-Bit, 2-Channel SAR ADC
Manufacturer
AD [Analog Devices]
Datasheet
Preliminary Technical Data
Dual 14-bit, 2-channel ADC
True Bipolar Analog Inputs
Programmable Input Ranges
±10, ±5, 0 to 10 V
Throughput rate: 1 MSPS
Simultaneous conversion with read in 1μs
Specified for V
Low current consumption: 5.65 mA max
Wide input bandwidth
14 bits No Missing Codes
On-chip reference: 2.5 V
–40°C to +85°C operation
High speed serial interface
iCMOS
24-lead TSSOP package
For 12 bit version see AD7366
GENERAL DESCRIPTION
The AD7367
approximation ADC that features throughput rates up to 1
MSPS. The device contains two ADCs, each preceded by a 2-
channel multiplexer, and a low noise, wide bandwidth track-
and-hold amplifier that can handle input frequencies in excess
of 10 MHz.
The AD7367 is fabricated on Analog Devices’ Industrial CMOS
process, iCMOS, a technology platform combining the
advantages of low and high voltage CMOS, bipolar and high
voltage DMOS processes. The process allows the AD7367 to
accept high voltage bipolar signals in addition to reducing
power consumption and package size.
The AD7367 can accept true bipolar analog input signals in the
±10 V range, ±5 V range and 0 to 10 V range.
The AD7367 has an on-chip 2.5 V reference that can be
overdriven if an external reference is preferred. The AD7367 is
available in a 24-lead TSSOP package.
1
iCMOS
For analog systems designers within industrial/instrumentation equipment OEMs who need high performance ICs at higher-voltage levels, iCMOS is a technology
platform that enables the development of analog ICs capable of 30V and operating at +/- 15V supplies while allowing dramatic reductions in power consumption and
package size, and increased AC and DC performance.
Rev. PrD
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.
FEATURES
Protected by U.S. Patent No. 6,681,332.
SPI®/QSPI™/MICROWIRE™/DSP compatible
TM
TM
Process Technology
Process Technology
1
is a dual, 14-bit, high speed, low power, successive
CC
of 5 V±5%
1μs, 14-Bit, 2-Channel SAR ADC
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
Table 1.Related Products
Device
Number
AD7366
AD7366-5
AD7367-5
FUNCTIONAL BLOCK DIAGRAM
True Bipolar Input, Dual
Resolution
12-Bit
12-Bit
14-Bit
©2006 Analog Devices, Inc. All rights reserved.
Figure 1
Throughput
Rate
1 MSPS
500 KSPS
500 KSPS
AD7367
www.analog.com
Number of
Channels
Dual, 2-ch
Dual, 2-ch
Dual, 2-ch

Related parts for AD7367-5ARUZ-REEL7

AD7367-5ARUZ-REEL7 Summary of contents

Page 1

... The AD7367 can accept true bipolar analog input signals in the ±10 V range, ±5 V range and range. The AD7367 has an on-chip 2.5 V reference that can be overdriven if an external reference is preferred. The AD7367 is available in a 24-lead TSSOP package. ...

Page 2

... AD7367 TABLE OF CONTENTS FEATURES ........................................................................................ 1 GENERAL DESCRIPTION ............................................................ 1 FUNCTIONAL BLOCK DIAGRAM............................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Specifications .................................................................. 5 Absolute Maximum Ratings............................................................ 6 ESD Caution.................................................................................. 6 Pin Configuration and Function Descriptions............................. 7 Terminology ...................................................................................... 9 Theory of operation ................................................................... 10 REVISION HISTORY 4/06—PRA: Initial Version 5/06—PRA changes to PRB: Initial Version 10/06—PRB changes to PRC: Modified Supply specifications Preliminary Technical Data Analog Inputs ...

Page 3

... AD7367 SPECIFICATIONS = 2.5 V Internal/External REF A MIN Table 2. Parameter DYNAMIC PERFORMANCE 2 Signal-to-Noise Ratio (SNR) Signal-to-Noise + Distortion Ratio 2 (SINAD) 2 Total Harmonic Distortion (THD) Spurious Free Dynamic Range (SFDR) 2 Intermodulation Distortion (IMD) Second Order Terms ...

Page 4

... AD7367 Parameter REFERENCE INPUT/OUTPUT 4 Reference Output Voltage Reference Input Voltage Range DC Leakage Current Input Capacitance Output Impedance REF REF Reference Temperature Coefficient V Noise REF LOGIC INPUTS Input High Voltage, V INH Input Low Voltage, V INL Input Current Input Capacitance, C ...

Page 5

... AD7367 TIMING SPECIFICATIONS =4. 5. 11. otherwise noted . Table 3. Parameter Limit MIN 2.7V≤V <4.75V 4.75V≤V DRIVE t 680 680 CONVERT SCLK QUIET ...

Page 6

... AD7367 ABSOLUTE MAXIMUM RATINGS Table 4 Parameter Rating V to AGND, DGND −0 +16 AGND, DGND −0 +16 DGND −0 DRIVE V to AVcc Vcc – 0.3V to +16. AGND, DGND -0. DGND -0 ...

Page 7

... AGND Analog Ground. Ground reference point for all analog circuitry on the AD7367. All analog input signals and any external reference signal should be referred to this AGND voltage. Both AGND pins should connect to the AGND plane of a system. The AGND and DGND voltages ideally should be at the same potential and must not be more than 0 ...

Page 8

... DGND Digital Ground. This is the ground reference point for all digital circuitry on the AD7367. The DGND pin should connect to the DGND plane of a system. The DGND and AGND voltages should ideally be at the same potential and must not be more than 0.3 V apart, even on a transient basis. ...

Page 9

... N-bit converter with a sine wave input is given by: Signal to (Noise + Distortion) = (6.02N + 1.76) dB Thus for a 12-bit converter, this is 74 dB. Total Harmonic Distortion (THD) Total harmonic distortion is the ratio of the rms sum of harmonics to the fundamental. For the AD7367 defined as: THD where and V ...

Page 10

... On the falling edge of BUSY the track- and-hold will return to track mode. Once the conversion is finished, the serial clock input accesses data from the part. The AD7367 has an on-chip 2.5 V reference that can be overdriven when an external reference is preferred. If the internal reference used elsewhere in a system, then the output from D A & ...

Page 11

... Do not program The AD7367 requires V CAPACITIVE voltage analog input structures. These supplies must be equal to DAC or greater than ±11.5V. See Table 6 for the requirements on these supplies. The AD7367 requires a low voltage 4.75V to 5.25 CONTROL LOGIC supply for the Digital Power and a 2.7V to 5.25V V for the interface power ...

Page 12

... The reference buffer requires 500 µs to power up and charge the 680nF decoupling capacitor during the power-up time. The AD7367 is specified for a 2 reference range. When a 3V reference is selected, the ranges are ±12 V, ±6 V, and +12 V. For these ranges, the V equal to or greater than the +12V & ...

Page 13

... AD7367 MODES OF OPERATION The mode of operation of the AD7367 is selected by the (logic) state of the CONVST signal at the end of a conversion. There are two possible modes of operation: normal mode and shut-down mode. These modes of operation are designed to provide flexible power management options. These options can be chosen to optimize the power dissipation/throughput rate ratio for differing application requirements ...

Page 14

... CAP be brought high and remain high for a minimum of 100μs, as shown in Figure 8. When power supplies are first applied to the AD7367, the ADC may power up with CONVST in either the low or high logic state. Before attempting a valid conversion CONVST must be brought high and remain high for the recommended power up time of 100μ ...

Page 15

... If the falling edge of SCLK coincides with the falling edge then the falling edge of SCLK is not acknowledged by the AD7367, and the next falling edge of the SCLK will be the first registered after the falling edges of the CS . The CS pin can be brought low before the BUSY signal goes low indicating the end of a conversion ...

Page 16

... AD7367ARUZ-REEL7 −40°C to +85°C 1 AD7367BRUZ −40°C to +85°C 1 AD7367BRUZ-REEL7 −40°C to +85°C 1 AD7367-5ARUZ −40°C to +85°C 1 AD7367-5ARUZ-REEL7 −40°C to +85°C 1 AD7367-5BRUZ −40°C to +85°C 1 AD7367-5BRUZ-REEL7 −40°C to +85° Pb-free part. 7.90 7.80 7. ...

Related keywords