General Description

The MAX1192 is an ultra-low-power, dual, 8-bit, 22Msps

analog-to-digital converter (ADC). The device features

two fully differential wideband track-and-hold (T/H) inputs.

These inputs have a 440MHz bandwidth and accept fully

differential or single-ended signals. The MAX1192 deliv-

ers a typical signal-to-noise and distortion (SINAD) of

48.6dB at an input frequency of 5.5MHz and a sampling

rate of 22Msps while consuming only 27.3mW. This ADC

operates from a 2.7V to 3.6V analog power supply. A sep-

arate 1.8V to 3.6V supply powers the digital output driver.

In addition to ultra-low operating power, the MAX1192

features three power-down modes to conserve power

during idle periods. Excellent dynamic performance,

ultra-low power, and small size make the MAX1192 ideal

for applications in imaging, instrumentation, and digital

communications.

An internal 1.024V precision bandgap reference sets

the full-scale range of the ADC to ±0.512V. A flexible

reference structure allows the MAX1192 to use its inter-

nal reference or accept an externally applied reference

for applications requiring increased accuracy.

The MAX1192 features parallel, multiplexed, CMOS-

compatible tri-state outputs. The digital output format is

offset binary. A separate digital power input accepts a

voltage from 1.8V to 3.6V for flexible interfacing to dif-

ferent logic levels. The MAX1192 is available in a 5mm

× 5mm, 28-pin thin QFN package, and is specified for

the extended industrial (-40°C to +85°C) temperature

range.

For higher sampling frequency applications, refer to the

MAX1195–MAX1198 dual 8-bit ADCs. Pin-compatible

versions of the MAX1192 are also available. Refer to the

MAX1191 data sheet for 7.5Msps, and the MAX1193

data sheet for 45Msps.

Applications

Ultrasound and Medical Imaging

IQ Baseband Sampling

Battery-Powered Portable Instruments

Low-Power Video

WLAN, Mobile DSL, WLL Receiver

Features

o Ultra-Low Power

27.3mW (Normal Operation: 22Msps)

1.8µW (Shutdown Mode)

o Excellent Dynamic Performance

o 2.7V to 3.6V Single Analog Supply

o 1.8V to 3.6V TTL/CMOS-Compatible Digital

Outputs

o Fully Differential or Single-Ended Analog Inputs

o Internal/External Reference Option

o Multiplexed CMOS-Compatible Tri-State Outputs

o 28-Pin Thin QFN Package

o Evaluation Kit Available (Order MAX1193EVKIT)

Ultra-Low-Power, 22Msps, Dual 8-Bit ADC

________________________________________________________________ Maxim Integrated Products

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MAX1192

5mm x 5mm THIN QFN

TOP VIEW

INA+

EXPOSED PADDLE

INA-

GND

CLK

GND

INB+

INB-

D0

D1

D2

D3

A/B

D4

D5

Pin Configuration

Ordering Information

19-2835; Rev 1; 9/03

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

PART

TEMP RANGE

PIN-PACKAGE

MAX1192ETI-T

-40°C to +85°C

28 Thin QFN-EP*

(5mm x 5mm)

*EP = Exposed paddle.