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MAX1226, MAX1228, MAX1230
12-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference

16-Channel, 12-/10-Bit ADCs Feature Internal Temp Sensor and Minimize Microprocessor I/O Requirements


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Description
FULL DATA SHEET (PDF, 760kB)
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The MAX1226/MAX1228/MAX1230 are serial 12-bit analog-to-digital converters (ADCs) with an internal reference and an internal temperature sensor. These devices feature on-chip FIFO, scan mode, internal clock mode, internal averaging, and AutoShutdown™. The maximum sampling rate is 300ksps using an external clock. The MAX1230 has 16 input channels, the MAX1228 has 12 input channels, and the MAX1226 has 8 input channels. All input channels are configurable for single-ended or differential inputs in unipolar or bipolar mode. All three devices operate from a +5V supply and contain a 10MHz SPI™/QSPI™/MICROWIRE™-compatible serial port.

The MAX1230 is available in 28-pin 5mm x 5mm QFN with exposed pad and 24-pin QSOP packages. The MAX1226/MAX1228 are only available in QSOP packages. All three devices are specified over the extended -40°C to +85°C temperature range.

Key Features   Applications/Uses
  • Internal Temperature Sensor (±1°C Accuracy)
  • 16-Entry First-In/First-Out (FIFO)
  • Analog Multiplexer with True Differential Track/Hold
    • 16-, 12-, 8-Channel Single Ended
    • 8-, 6-, 4-Channel True Differential
    • (Unipolar or Bipolar)
  • Accuracy: ±1 LSB INL, ±1 LSB DNL, No Missing Codes Over Temperature
  • Scan Mode, Internal Averaging, and Internal Clock
  • Low-Power Single +5V Operation
    • 1.9mA at 300ksps
  • Internal 4.096V Reference or External Differential Reference
  • 10MHz 3-Wire SPI/QSPI/MICROWIRE-Compatible Interface
  • Space-Saving 28-Pin 5mm x 5mm QFN Package

 
  • Data Acquisition Systems
  • Data Logging
  • Industrial Control Systems
  • Instrumentation
  • Patient Monitoring
  • System Supervision

    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**
    MAX1226  12 8 300 2.7 Serial Ext
    Int +4.096
    Yes 5 1.9 9.5 Yes No No Yes QSOP/16 -40 to +85
    0 to +70
    $4.52 @ 1k
    MAX1228  12 No QSOP/20 $4.98 @ 1k
    MAX1230  16 Yes QSOP/24
    THIN QFN/28
    THIN QFN/32
    $5.43 @ 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.: 19-2852; Rev 2; 2004-07-27
    This page last modified: 2007-08-10



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