MAX1185
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MAX1185

Dual 10-Bit, 20Msps, +3V, Low-Power ADC with Internal Reference and Multiplexed Parallel Outputs

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Part Details
Part Models 4
1ku List Price Starting From $6.85
Features
  • Single +3V Operation
  • Excellent Dynamic Performance:
    • 59.5dB SNR at fIN = 7.5MHz
    • 74dB SFDR at fIN = 7.5MHz
  • Low Power:
    • 35mA (Normal Operation)
    • 2.8mA (Sleep Mode)
    • 1µA (Shutdown Mode)
  • 0.02dB Gain and 0.25° Phase Matching
  • Wide ±1VP-P Differential Analog Input Voltage Range
  • 400MHz, -3dB Input Bandwidth
  • On-Chip +2.048V Precision Bandgap Reference
  • Single 10-Bit Bus for Multiplexed, Digital Outputs
  • User-Selectable Output Format—Two's Complement or Offset Binary
  • 48-Pin TQFP Package with Exposed Pad for Improved Thermal Dissipation
Additional Details
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The MAX1185 is a 3V, dual 10-bit analog-to-digital converter (ADC) featuring fully-differential wideband track-and-hold (T/H) inputs, driving two pipelined, nine-stage ADCs. The MAX1185 is optimized for low-power, high dynamic performance applications in imaging, instrumentation, and digital communication applications. This ADC operates from a single 2.7V to 3.6V supply, consuming only 105mW while delivering a typical signal-to-noise ratio (SNR) of 59.5dB at an input frequency of 7.5MHz and a sampling rate of 20Msps. Digital outputs A and B are updated alternating on the rising (CHA) and falling (CHB) edge of the clock. The T/H driven input stages incorporate 400MHz (-3dB) input amplifiers. The converters may also be operated with single-ended inputs. In addition to low operating power, the MAX1185 features a 2.8mA 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 derived reference, if desired for applications requiring increased accuracy or a different input voltage range. The MAX1185 features parallel, multiplexed, 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. The MAX1185 is available in a 7mm x 7mm, 48-pin TQFP package, and is specified for the extended industrial (-40°C to +85°C) temperature range.

Pin-compatible, nonmultiplexed. high-speed versions of the MAX1185 are also available. Refer to the MAX1180 data sheet for 105Msps, the MAX1181 data sheet for 80Msps, the MAX1182 data sheet for 65Msps, the MAX1183 data sheet for 40Msps, and the MAX1184 data sheet for 20Msps.

Applications

  • High-Resolution Imaging
  • I/Q Channel Digitization
  • Instrumentation
  • Multichannel IF Sampling
  • Ultrasound
  • Video Application
Part Models 4
1ku List Price Starting From $6.85

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Product Lifecycle

PCN

Feb 26, 2016

- 1589A

ASSEMBLY

MAX1185ECM+D

PRODUCTION

MAX1185ECM+TD

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Feb 26, 2016

- 1589A

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ASSEMBLY

MAX1185ECM+D

PRODUCTION

MAX1185ECM+TD

PRODUCTION

Evaluation Kit

Evaluation Kits 1

MAX1181EVKIT

Evaluation Kit for the MAX1180, MAX1181, MAX1182, MAX1183, MAX1184, MAX1185, MAX1186, and MAX1190

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MAX1181EVKIT

Evaluation Kit for the MAX1180, MAX1181, MAX1182, MAX1183, MAX1184, MAX1185, MAX1186, and MAX1190

Evaluation Kit for the MAX1180, MAX1181, MAX1182, MAX1183, MAX1184, MAX1185, MAX1186, and MAX1190

Features and Benefits

  • Up to 80Msps Sampling Rate (MAX1181)
  • Low Voltage and Power Operation
  • Single-Ended or Fully Differential Signal Input Configuration
  • Clock-Shaping Circuit
  • Fully Assembled and Tested
  • Supports Both Nonmultiplexed (MAX1180-MAX1184/MAX1190) and Multiplexed (MAX1185/MAX1186) Output Operation

Product Detail

The MAX1181 Evaluation kit (EV Kit) is a fully assembled and tested circuit board that contains all the components necessary to evaluate the performance of the nonmultiplexed MAX1180-MAX1184 and MAX1190 or multiplexed MAX1185 and MAX1186, dual 10-bit analog-to-digital converters (ADC). The MAX1180-MAX1186 and MAX1190 accept differential or single-ended analog inputs and the EV kit allows for evaluation of each ADC with both types of signals from one single-ended analog signal. The digital output produced by the ADC can easily be sampled with a user-provided high-speed logic analyzer or data-acquisition system. The EV kit operates from 3.0V analog and 2.0V digital power supplies. It includes circuitry that generates a clock signal from an AC signal provided by the user. The EV kit comes with the MAX1181 installed. Order free samples of the pin-compatible MAX1180, MAX1182, MAX1183, MAX1184, MAX1185, MAX1186, or MAX1190 to evaluate these parts.

Applications

  • High-Resolution Imaging
  • I/Q Channel Digitization
  • Instrumentation
  • Multichannel IF Undersampling
  • Video Application

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