MAX1446EHJ+ Maxim Integrated Products, MAX1446EHJ+ Datasheet

IC ADC 10BIT 60MSPS 32-TQFP

MAX1446EHJ+

Manufacturer Part Number
MAX1446EHJ+
Description
IC ADC 10BIT 60MSPS 32-TQFP
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX1446EHJ+

Number Of Bits
10
Sampling Rate (per Second)
60M
Data Interface
Parallel
Number Of Converters
1
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
32-TQFP, 32-VQFP
Conversion Rate
60 MSPs
Resolution
10 bit
Snr
59.5 dB
Voltage Reference
2.048 V
Supply Voltage (max)
3.6 V
Supply Voltage (min)
2.7 V
Maximum Power Dissipation
1495.3 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Input Voltage
3 V
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX1446 10-bit, 3V analog-to-digital converter
(ADC) features a fully differential input, a pipelined 10-
stage ADC architecture with digital error correction and
wideband track and hold (T/H) incorporating a fully dif-
ferential signal path. This ADC is optimized for low-
power, high dynamic performance applications in
imaging and digital communications. The MAX1446
operates from a single 2.7V to 3.6V supply, consuming
only 90mW while delivering a 59.5dB signal-to-noise
ratio (SNR) at a 20MHz input frequency. The fully differ-
ential input stage has a 400MHz, -3dB bandwidth and
may be operated with single-ended inputs. In addition
to low operating power, the MAX1446 features a 5µA
power-down mode for idle periods.
An internal 2.048V precision bandgap reference is used
to set the ADC full-scale range. A flexible reference
structure allows the user to supply a buffered, direct or
externally derived reference for applications requiring
increased accuracy or a different input voltage range.
Lower and higher speed, pin-compatible versions of
the MAX1446 are also available. Refer to the MAX1444
data sheet for a 40Msps version, the MAX1448 data
sheet for an 80Msps version, and the MAX1449 data
sheet for a 105Msps version.
The MAX1446 has parallel, offset binary, three-state
outputs that can be operated from 1.7V to 3.3V to allow
flexible interfacing. The device is available in a 5mm x
5mm, 32-pin TQFP package and is specified over the
extended industrial (-40°C to +85°C) and automotive
(-40°C to +105°C) temperature ranges.
19-1729; Rev 4; 11/08
________________________Applications
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX1444
MAX1448
MAX1449
PART
Ultrasound Imaging
CCD Imaging
Baseband and IF Digitization
Digital Set-Top Boxes
Video Digitizing Applications
Lower/Higher Speed Versions
________________________________________________________________ Maxim Integrated Products
General Description
SAMPLING SPEED (Msps)
Pin-Compatible,
105
40
80
10-Bit, 60Msps, 3.0V, Low-Power
ADC with Internal Reference
o Single 3.0V Operation
o Excellent Dynamic Performance
o Low Power:
o Fully Differential Analog Input
o Wide 2V
o 400MHz -3dB Input Bandwidth
o On-Chip 2.048V Precision Bandgap Reference
o CMOS-Compatible Three-State Outputs
o 32-Pin TQFP Package
o Evaluation Kit Available (MAX1448 EV Kit)
+ Denotes a lead(Pb)-free/RoHS-compliant package.
CLK
IN+
IN-
PD
MAX1446GHJ+
MAX1446EHJ+
59.5dB SNR at f
73dB SFDR at f
30mA (Normal Operation)
5µA (Shutdown Mode)
REFOUT
PART
T/H
REF
P-P
REFIN
Differential Input Voltage Range
REFP COM REFN
REF SYSTEM +
PIPELINE ADC
CONTROL
BIAS
IN
IN
Ordering Information
= 20MHz
= 20MHz
-40°C to +105°C
Functional Diagram
-40°C to +85°C
TEMP RANGE
D
C
E
MAX1446
10
Features
DRIVERS
OUTPUT
PIN-
PACKAGE
32 TQFP
32 TQFP
OE
V
GND
D9–D0
OV
OGND
DD
DD
1

Related parts for MAX1446EHJ+

MAX1446EHJ+ Summary of contents

Page 1

... Operation) 5µA (Shutdown Mode) o Fully Differential Analog Input o Wide 2V o 400MHz -3dB Input Bandwidth o On-Chip 2.048V Precision Bandgap Reference o CMOS-Compatible Three-State Outputs o 32-Pin TQFP Package o Evaluation Kit Available (MAX1448 EV Kit) PART MAX1446EHJ+ MAX1446GHJ+ + Denotes a lead(Pb)-free/RoHS-compliant package. CLK IN+ T/H IN REFOUT ...

Page 2

... Spurious-Free Dynamic SFDR Range 2 _______________________________________________________________________________________ Continuous Power Dissipation (T 32-Pin TQFP (derate 18.7mW/°C above +70°C)......1495.3mW Operating Temperature Ranges: DD MAX1446EHJ+ .................................................-40°C to +85°C + 0.3V) MAX1446GHJ+...............................................-40°C to +105° 0.3V) Storage Temperature Range ............................-60°C to +150° 0.3V) Lead Temperature (soldering, 10s) .................................+300°C ...

Page 3

ELECTRICAL CHARACTERISTICS (continued 3.0V 2.7V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND REFIN through a 10kΩ resistor unless otherwise noted. ≥+25°C guaranteed by production test, ...

Page 4

Low-Power ADC with Internal Reference ELECTRICAL CHARACTERISTICS (continued 3.0V 2.7V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND REFIN through a 10kΩ resistor ...

Page 5

ELECTRICAL CHARACTERISTICS (continued 3.0V 2.7V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND REFIN through a 10kΩ resistor unless otherwise noted. ≥+25°C guaranteed by production test, ...

Page 6

Low-Power ADC with Internal Reference (V = 3.0V 2.7V, internal reference, differential input at -0.5dBFS otherwise noted.) FFT PLOT (f = 7.5MHz, 8192-POINT FFT, IN DIFFERENTIAL INPUT) 0 SFDR = 72.2dBc -10 ...

Page 7

OV = 2.7V, internal reference, differential input at -0.5dBFS otherwise noted.) SIGNAL-TO-NOISE RATIO vs. ANALOG INPUT FREQUENCY (A = -0.5dBFS DIFFERENTIAL SINGLE-ENDED ...

Page 8

Low-Power ADC with Internal Reference (V = 3.0V 2.7V, internal reference, differential input at -0.5dBFS otherwise noted.) TOTAL HARMONIC DISTORTION vs. TEMPERATURE - 19.943MHz -0.5dBFS IN IN -64 ...

Page 9

OV = 2.7V, internal reference, differential input at -0.5dBFS otherwise noted.) DIGITAL SUPPLY CURRENT vs. TEMPERATURE 7.5MHz +105° -40 - ...

Page 10

Low-Power ADC with Internal Reference PIN NAME 1 REFN 2 COM 11, 14, 30 GND 6 IN+ 7 IN- 12 CLK 16–20 D9– ...

Page 11

Detailed Description The MAX1446 uses a 10-stage, fully differential, pipelined architecture (Figure 1) that allows for high- speed conversion while minimizing power consump- tion. Each sample moves through a pipeline stage every half-clock cycle. Counting the delay through the output ...

Page 12

Low-Power ADC with Internal Reference The MAX1446 provides three modes of reference oper- ation: • Internal reference mode • Buffered external reference mode • Unbuffered external reference mode In internal reference mode, the internal reference out- put ...

Page 13

AT -0.5dBFS CLOCK DUTY CYCLE (%) Figure 3a. SFDR vs. Clock Duty Cycle (Differential Input 12.5MHz AT -0.5dBFS ...

Page 14

Low-Power ADC with Internal Reference samples at the falling edge of the input clock. Output data is valid on the rising edge of the input clock. The output data has an internal latency of 5.5 clock cycles. ...

Page 15

INPUT MAX4108 0.1μF -5V 300Ω 300Ω Figure 7. Typical Application Circuit for Single-Ended to Differential Conversion 25Ω 22pF 0.1μ N. 2.2μF 0.1μ MINI-CIRCUITS ADT1–1WT 25Ω 22pF Figure ...

Page 16

Low-Power ADC with Internal Reference 3.3V 0.1μF 0.1μF 1 16.2kΩ 2 MAX6062 1μF 3 10Hz LOWPASS FILTER NOTE: ONE FRONT-END REFERENCE CIRCUIT DESIGN MAY BE USED WITH UP TO 1000 ADCs. Figure 10. Buffered External Reference Drives ...

Page 17

MAX6066 3 21.5kΩ 1μF 1.5V 3.3V 0.1μF 21.5kΩ MAX4254 POWER-SUPPLY BYPASSING. PLACE CAPACITOR AS CLOSE AS POSSIBLE TO THE OP AMP. 1.0V 21.5kΩ 21.5kΩ NOTE: ONE FRONT-END REFERENCE CIRCUIT DESIGN MAY BE USED WITH ...

Page 18

Low-Power ADC with Internal Reference ground pins could share the same ground plane if the ground plane is sufficiently isolated from any noisy, dig- ital systems ground plane (e.g., downstream output buffer or DSP ground plane). Route ...

Page 19

For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE 32 TQFP ______________________________________________________________________________________ 10-Bit, 60Msps, 3.0V, Low-Power ADC with Internal Reference Pin Configurations (continued) TOP VIEW REFN 1 COM ...

Page 20

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2008 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...

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