MAXIM MAX1446 10-Bit, 60Msps, 3.0V, Low-Power ADC with Internal Reference User's Manual and Specifications

19-1729; Rev 4; 11/08

EVALUATION KIT AVAILABLE

10-Bit, 60Msps, 3.0V, Low-Power ADC with Internal Reference General Description Features

The MAX1446 10-bit, 3V analog-to-digital converter

Single 3.0V Operation

(ADC) features a fully differential input, a pipelined 10-

Excellent Dynamic Performance

stage ADC architecture with digital error correction and

wideband track and hold (T/H) incorporating a fully dif- 59.5d B SNR at f IN = 20MHz

ferential signal path. This ADC is optimized for low- 73d B SFDR at f IN = 20MHz

power, high dynamic performance applications in

Low Power:

imaging and digital communications. The MAX1446

30m A (Normal Operation)

operates from a single 2.7V to 3.6V supply, consuming

only 90m W while delivering a 59.5d B signal-to-noise 5µA (Shutdown Mode)

ratio (SNR) at a 20MHz input frequency. The fully differ-

Fully Differential Analog Input

ential input stage has a 400MHz, -3d B bandwidth and

may be operated with single-ended inputs. In addition Wide 2VP-P Differential Input Voltage Range

to low operating power, the MAX1446 features a 5µA

400MHz -3d B Input Bandwidth

power-down mode for idle periods.

On-Chip 2.048V Precision Bandgap Reference

An internal 2.048V precision bandgap reference is used

to set the ADC full-scale range. A flexible reference CMOS-Compatible Three-State Outputs

structure allows the user to supply a buffered, direct or

32-Pin TQFP Package

externally derived reference for applications requiring

increased accuracy or a different input voltage range. Evaluation Kit Available (MAX1448 EV Kit)

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 Ordering Information

sheet for a 105Msps version.

PART TEMP RANGE

The MAX1446 has parallel, offset binary, three-state

PACKAGE

outputs that can be operated from 1.7V to 3.3V to allow

MAX1446EHJ+ -40°C to +85°C 32 TQFP

flexible interfacing. The device is available in a 5mm x

5mm, 32-pin TQFP package and is specified over the MAX1446GHJ+ -40°C to +105°C 32 TQFP

extended industrial (-40°C to +85°C) and automotive +Denotes a lead(Pb)-free/Ro HS-compliant package. (-40°C to +105°C) temperature ranges.

________________________Applications Functional Diagram Ultrasound Imaging CCD Imaging Baseband and IF Digitization CLK

MAX1446

Digital Set-Top Boxes

CONTROL GND

Video Digitizing Applications

OUTPUT

T/H PIPELINE ADC D9–D0

DRIVERS

Pin-Compatible,

Lower/Higher Speed Versions REF SYSTEM +

PD REF

BIAS OGND

PART SAMPLING SPEED (Msps) MAX1444

REFINREFOUT REFP COM REFN OE

MAX1448 MAX1449

Maxim Integrated Products

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.