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MAX1076, MAX1078
1.8Msps, Single-Supply, Low-Power, True-Differential, 10-Bit ADCs with Internal Reference


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Description
FULL DATA SHEET (PDF, 1.3MB)
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The MAX1076/MAX1078 are low-power, high-speed, serial- output, 10-bit, analog-to-digital converters (ADCs) that operate at up to 1.8Msps and have an internal reference. These devices feature true-differential inputs, offering better noise immunity, distortion improvements, and a wider dynamic range over single-ended inputs. A standard SPI™/QSPI™/MICROWIRE™ interface provides the clock necessary for conversion. These devices easily interface with standard digital signal processor (DSP) synchronous serial interfaces.

The MAX1076/MAX1078 operate from a single +4.75V to +5.25V supply voltage. The MAX1076/MAX1078 include a 4.096V internal reference. The MAX1076 has a unipolar analog input, while the MAX1078 has a bipolar analog input. These devices feature a partial power-down mode and a full power-down mode for use between conversions, which lower the supply current to 2mA (typ) and 1µA (max), respectively. Also featured is a separate power-supply input (VL), which allows direct interfacing to +1.8V to VDD digital logic. The fast conversion speed, low-power dissipation, excellent AC performance, and DC accuracy (±0.5 LSB INL) make the MAX1076/MAX1078 ideal for industrial process control, motor control, and base-station applications.

The MAX1076/MAX1078 come in a 12-pin TQFN package, and are available in the commercial (0°C to +70°C) and extended (-40°C to +85°C) temperature ranges.

Key Features   Applications/Uses
  • 1.8Msps Sampling Rate
  • Only 50mW (typ) Power Dissipation
  • Only 1µA (max) Shutdown Current
  • High-Speed, SPI-Compatible, 3-Wire Serial Interface
  • 61dB S/(N + D) at 525kHz Input Frequency
  • Internal True-Differential Track/Hold (T/H)
  • Internal 4.096V Reference
  • No Pipeline Delays
  • Small 12-Pin TQFN Package

 
  • Bill Validation
  • Communications
  • Data Acquisition
  • Motor Control
  • Portable Instrumentation

    Key Specifications:   Precision ADCs (< 5Msps)
    Part Number ADC Resolution (Bits) Input Channels Conv. Rate (ksps) Max. Conv. Time (µs) Data Bus (Bits) Ref. (V) Diff. In Supply Voltage (V) Typ. Supply Current (mA) Typ. Power (mW) Low Power Mode Standby Mode EV-Kit RoHS Available Package Operating Temp. Range (°C) Price**
    MAX1076  10 1 1800 0.56 Serial Ext Yes 5 10 50 Yes Yes No Yes THIN QFN/12 -40 to +85 $2.98 @ 1k
    MAX1078  $2.98 @ 1k
    See All Precision ADCs (< 5Msps) (301)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

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    Document Ref.: 19-3291; Rev 0; 2004-05-14
    This page last modified: 2008-03-13



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