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

Dual 10-Bit ADC Delivers Excellent Dynamic Performance at Low Power

The MAX1190 is a 3.3V, dual 10-bit analog-to-digital converter (ADC) featuring fully differential wideband track-and-hold (T/H) inputs, driving two ADCs. The MAX1190 is optimized for low power, small size, and high-dynamic performance for applications in imaging, instrumentation, and digital communications. This ADC operates from a single 3.1V to 3.6V supply, consuming only 492mW while delivering a typical signal-to-noise and distortion (SINAD) of 57dB at an input frequency of 60MHz and a sampling rate of 120Msps. The T/H driven input stages incorporate 400MHz (-3dB) input amplifiers. The converters can also be operated with single-ended inputs. In addition to low operating power, the MAX1190 features a 3mA sleep mode, as well as a 1µA power-down mode to conserve power during idle periods. An internal 2.048V precision bandgap reference sets the full-scale range of the ADC. A flexible reference structure allows the use of this internal or an externally applied reference, if desired, for applications requiring increased accuracy or a different input voltage range. The MAX1190 features parallel, CMOS-compatible three-state outputs. The digital output format can be set to two's complement or straight offset binary through a single control pin. The device provides for a separate output power supply of 1.7V to 3.6V for flexible interfacing with various logic families. The MAX1190 is available in a 7mm x 7mm, 48-pin TQFP-EP package, and is specified for the extended industrial (-40°C to +85°C) temperature range. Pin-compatible lower speed versions of the MAX1190 are also available. Refer to the MAX1180–MAX1184 data sheets for 105Msps/80Msps/65Msps/40Msps. In addition to these speed grades, this family includes two multiplexed output versions (MAX1185/MAX1186 for 20Msps/40Msps), for which digital data is presented time-interleaved and on a single, parallel 10-bit output port. For lower speed, pin-compatible, 8-bit versions of the MAX1190, refer to the MAX1195–MAX1198 data sheets.

Key Features Single 3.3V Operation Excellent Dynamic Performance 57dB SINAD at fIN = 60MHz 64dBc SFDR at fIN = 60MHz -71dBc Interchannel Crosstalk at fIN = 60MHz Low Power 492mW (Normal Operation) 10mW (Sleep Mode) 3.3µW (Shutdown Mode) 0.08dB Gain and 0.8° Phase Matching Wide ±1VP-P Differential Analog Input Voltage Range 400MHz -3dB Input Bandwidth On-Chip 2.048V Precision Bandgap Reference User-Selectable Output Format—Two's Complement or Offset Binary Pin-Compatible, Lower-Speed, 10-Bit and 8-Bit Versions Available

MAX1190: Functional Diagram Applications/Uses Baseband I/Q Sampling Battery-Powered Instrumentation Multichannel IF Sampling Set-Top Boxes Ultrasound and Medical Imaging VSAT Terminals WLAN, WWAN, WLL, MMDS Modems

DataSheet

Parametrics

Design kits & evaluation modules

• MAX1181EVKIT

Quality and Environmental Data

• MAX1190.pdf

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• MAX1184：Dual 10-Bit, 20Msps, +3V, Low-Power ADC with Internal Reference and Parallel Outputs
• MAX1185：Dual 10-Bit, 20Msps, +3V, Low-Power ADC with Internal Reference and Multiplexed Parallel Outputs
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• MAX1182：Dual 10-Bit, 65Msps, +3V, Low-Power ADC with Internal Reference and Parallel Outputs
• MAX1180：Dual 10-Bit, 105Msps, 3.3V, Low-Power ADC with Internal Reference and Parallel Outputs

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