MAXIM MAX1190 Dual 10-Bit, 120Msps, 3.3V Low-Power ADC with Internal Reference and Parallel Outputs

19-2524; Rev 1; 6/06

Dual 10-Bit, 120Msps, 3.3V, Low-Power ADC with Internal Reference and Parallel Outputs General Description Features

The MAX1190 is a 3.3V, dual 10-bit analog-to-digital con- Single 3.3V Operation

verter (ADC) featuring fully differential wideband track-

Excellent Dynamic Performance

and-hold (T/H) inputs, driving two ADCs. The MAX1190 is 57d B SINAD at f IN = 60MHz optimized for low power, small size, and high-dynamic 64d Bc SFDR at f IN = 60MHz performance for applications in imaging, instrumentation,

-71d Bc Interchannel Crosstalk at f IN = 60MHz

and digital communications. This ADC operates from a

Low Power

single 3.1V to 3.6V supply, consuming only 492m W while

492m W (Normal Operation)

delivering a typical signal-to-noise and distortion (SINAD)

10m W (Sleep Mode)

of 57d B at an input frequency of 60MHz and a sampling

3.3µW (Shutdown Mode)

rate of 120Msps. The T/H driven input stages incorporate

0.08d B Gain and 0.8° Phase Matching

400MHz (-3d B) input amplifiers. The converters can also be operated with single-ended inputs. In addition to low Wide ±1VP-P Differential Analog Input Voltage operating power, the MAX1190 features a 3m A sleep Range mode, as well as a 1µA power-down mode to conserve

400MHz -3d B Input Bandwidth

power during idle periods.

On-Chip 2.048V Precision Bandgap Reference

An internal 2.048V precision bandgap reference sets the

User-Selectable Output Format—Two’s Complement

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

or Offset Binary

allows the use of this internal or an externally applied ref-

Pin-Compatible, Lower-Speed, 10-Bit and 8-Bit

erence, if desired, for applications requiring increased

Versions Available

accuracy or a different input voltage range. The MAX1190 features parallel, CMOS-compatible three- Ordering Information

GN RE FN

state outputs. The digital output format can be set to two’s RE FP

complement or straight offset binary through a single con- RE FI PART TEMP RANGE PIN-PACKAGE PKG CODE

trol pin. The device provides for a separate output power GN RE FO UT C48E-7

MAX1190ECM -40°C to +85°C 48 TQFP-EP*

supply of 1.7V to 3.6V for flexible interfacing with various T/ D9

MAX1190ECM+ -40°C to +85°C 48 TQFP-EP* C48E-7

SL EE D8

logic families. The MAX1190 is available in a 7mm ✕

PD D7 *EP = Exposed paddle.

7mm, 48-pin TQFP-EP package, and is specified for the

OE D6 +Denotes lead-free package.

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

Pin-compatible lower speed versions of the MAX1190 are D8 D4 Pin Configuration

also available. Refer to the MAX1180–MAX1184 data D7 D3 sheets for 105Msps/80Msps/65Msps/40Msps. In addition D6 D2

to these speed grades, this family includes two multi- plexed output versions (MAX1185/MAX1186 for 20Msps/40Msps), for which digital data is presented time-

COM D1A

interleaved and on a single, parallel 10-bit output port.

VDD D0A

For lower speed, pin-compatible, 8-bit versions of the

GND OGND

MAX1190, refer to the MAX1195–MAX1198 data sheets. INA+ OVDD

INA- OVDD

Applications

VDD OGND

MAX1190

GND D0B

Baseband I/Q Sampling

INB- D1B

Multichannel IF Sampling INB+ D2B

GND D3B

Ultrasound and Medical Imaging

VDD D4B Battery-Powered Instrumentation CLK D5B

WLAN, WWAN, WLL, MMDS Modems Set-Top Boxes VSAT Terminals

TQFP-EP

EP = EXPOSED PADDLE.

Functional Diagram appears at end of data sheet. NOTE: THE PIN 1 INDICATOR FOR LEAD-FREE PACKAGES IS REPLACED BY A “+”.

Maxim Integrated Products

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.