General Description

The MAX1436B octal, 12-bit analog-to-digital converter

(ADC) features fully differential inputs, a pipelined

architecture, and digital error correction incorporating a

fully differential signal path. This ADC is optimized for

low-power and high-dynamic performance in medical

imaging instrumentation and digital communications

applications. The MAX1436B operates from a 1.8V sin-

gle supply and consumes only 743mW (93mW per

channel) while delivering a 69.9dB (typ) signal-to-noise

ratio (SNR) at a 5.3MHz input frequency. In addition to

low operating power, the MAX1436B features a low-

power standby mode for idle periods.

An internal 1.24V precision bandgap reference sets the

full-scale range of the ADC. A flexible reference struc-

ture allows the use of an external reference for applica-

tions requiring increased accuracy or a different input

voltage range. The reference architecture is optimized

for low noise.

A single-ended clock controls the data-conversion

process. An internal duty-cycle equalizer compensates

for wide variations in clock duty cycle. An on-chip PLL

generates the high-speed serial low-voltage differential

signal (LVDS) clock.

The MAX1436B has self-aligned serial LVDS outputs for

data, clock, and frame-alignment signals. The output

data is presented in two’s complement or binary format.

The MAX1436B offers a maximum sample rate of

40Msps. See the

Pin-Compatible Versions table below

for higher-speed versions. This device is available in a

small, 14mm x 14mm x 1mm, 100-pin TQFP package

with exposed pad and is specified for the extended

industrial (-40°C to +85°C) temperature range.

Applications

Ultrasound and Medical Imaging

Instrumentation

Multichannel Communications

Features

o Excellent Dynamic Performance

69.9dB SNR at 5.3MHz

96dBc SFDR at 5.3MHz

95dB Channel Isolation

o Ultra-Low Power

93mW per Channel (Normal Operation)

Fast 200μs Wake-Up Time from Standby

o Serial LVDS Outputs

o Pin-Selectable LVDS/SLVS (Scalable Low-Voltage

Signal) Mode

o LVDS Outputs Support Up to 30 Inches FR-4

Backplane Connections

o Test Mode for Digital Signal Integrity

o Fully Differential Analog Inputs

o On-Chip 1.24V Precision Bandgap Reference

o Clock Duty-Cycle Equalizer

o Compact, 100-Pin TQFP Package with Exposed

Pad

o Evaluation Kit Available (Order MAX1436BEVKIT)

Octal, 12-Bit, 40Msps, 1.8V ADC

with Serial LVDS Outputs

________________________________________________________________

Maxim Integrated Products

1

Ordering Information

19-0523; Rev 1; 2/11

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.

Pin Configuration appears at the end of data sheet.

EVALUATION

KIT

AVAILABLE

PART

TEMP RANGEPIN-PACKAGE

MAX1436BECQ+D

-40°C to +85°C

100 TQFP-EP*

(14mm x 14mm x 1mm)

Pin-Compatible Versions

PART

SAMPLING

RATE (Msps)

RESOLUTION

(Bits)

POWER-

SAVE MODE

MAX1434

50

10

Power-down

MAX1436

40

12

Power-down

MAX1436B

40

12

Standby

MAX1437

50

12

Power-down

MAX1438

65

12

Power-down

+

Denotes a lead(Pb)-free/RoHS-compliant package.

D = Dry pack.

*

EP = Exposed pad.