MAX189
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MAX189

+5V, Low-Power, 12-Bit Serial ADCs

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See MAX1240 for 3V Applications

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Part Details
Part Models 9
1ku List Price Starting From $9.49
Features
  • 12-Bit Resolution
  • ±½ LSB Integral Nonlinearity (MAX187A/MAX189A)
  • Internal Track/Hold, 75kHz Sampling Rate
  • Single +5V Operation
  • Low Power
    • 2µA Shutdown Current
    • 1.5mA Operating Current
  • Internal 4.096V Buffered Reference (MAX187)
  • 3-Wire Serial Interface, Compatible with SPI, QSPI, and MICROWIRE
  • Small-Footprint 8-Pin PDIP and 16-Pin SO
Additional Details
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The MAX187/MAX189 serial 12-bit analog-to-digital converters (ADCs) operate from a single +5V supply and accept a 0 to 5V analog input. Both parts feature an 8.5µs successive-approximation ADC, a fast track/hold (1.5µs), an on-chip clock, and a high-speed 3-wire serial interface.
The MAX187/MAX189 digitize signals at a 75ksps throughput rate. An external clock accesses data from the interface, which communicates without external hardware to most digital signal processors and microcontrollers. The interface is compatible with SPI, QSPI™, and MICROWIRE®.
The MAX187 has an on-chip buffered reference, and the MAX189 requires an external reference. Both the MAX187 and MAX189 save space with 8-pin PDIP and 16-pin SO packages. Power consumption is 7.5mW and reduces to only 10µW in shutdown.
Excellent AC characteristics and very low power consumption combined with ease of use and small package size make these converters ideal for remote DSP and sensor applications, or for circuits where power consumption and space are crucial.

Applications

  • High-Accuracy Process Control
  • Isolated Data Acquisition
  • Portable Data Logging
  • Remote Digital Signal Processing
Part Models 9
1ku List Price Starting From $9.49

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX189ACPA+
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MAX189ACWE+
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MAX189AEWE+
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MAX189AEWE+T
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MAX189BCWE+
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MAX189CCPA+
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MAX189CCWE+
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MAX189CCWE+T
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MAX189CEWE+
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Product Lifecycle

PCN

Jun 2, 2023

- 2361E

WAFER FAB

MAX189ACPA+

PRODUCTION

MAX189AEWE+

PRODUCTION

MAX189AEWE+T

PRODUCTION

MAX189BCWE+

PRODUCTION

MAX189CCPA+

PRODUCTION

MAX189CCWE+

PRODUCTION

MAX189CCWE+T

PRODUCTION

MAX189CEWE+

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Jun 2, 2023

- 2361E

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WAFER FAB

MAX189ACPA+

PRODUCTION

MAX189AEWE+

PRODUCTION

MAX189AEWE+T

PRODUCTION

MAX189BCWE+

PRODUCTION

MAX189CCPA+

PRODUCTION

MAX189CCWE+

PRODUCTION

MAX189CCWE+T

PRODUCTION

MAX189CEWE+

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

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Evaluation Kit

Evaluation Kits 1

MAX187EVKIT

Evaluation Kit for the MAX187

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MAX187EVKIT

Evaluation Kit for the MAX187

Evaluation Kit for the MAX187

Features and Benefits

  • Evaluates MAX187 and MAX189
  • Complete Evaluation System Includes EV Kit and 68HC16 µC Module
  • 12-Bit Resolution ADC
  • QSPI Serial Interface
  • 0V to 4.096V Input Range
  • Internal Reference Voltage (MAX187)
  • Low-Supply-Current Shutdown Mode
  • Complete Source Code provided
  • Proven PC Board Layout
  • Convenient Test Points Provided on Board
  • User Prototype Area
  • Fully Assembled and Tested

Product Detail

The MAX187 evaluation system (EV system) consists of a MAX187 evaluation kit (EV kit) board plus a Maxim 68HC16 microcontroller (µC) module. Both boards come fully assembled and tested, and software is provided. The unit connects to an IBM-compatible personal computer.

The EV system can function as a data acquisition system, collecting samples from the MAX187, storing them in memory, and displaying the conversion results on the host computer. Conversions may be self-timed or synchronized to an external timebase. Waveforms can be digitized and displayed graphically versus time.

The EV system can also evaluate the MAX187's shutdown feature, and has provisions for monitoring the supply current in the various modes of operation (internal reference, external reference, or power-down).

Order the EV system (MAX187EVC16-DIP) for comprehensive evaluation of the MAX187 or MAX189. Order the stand-alone EV kit (MAX187EV KIT-DIP) for custom use or if the 68HC16 module (68HC16MODULE-DIP) has already been purchased with another Maxim EV system. The MAX187 EV kit can also be used to perform limited evaluation on a stand-alone basis (see the MAX187 EV Kit Quick Start section). The EV system requires an external DC power source (such as a 12V DC wall transformer) and an IBM-compatible computer with a serial port and a 5 1/4" disk drive. To evaluate the MAX189, order the MAX187EVC16-DIP plus a free sample of the MAX189BCPA.

Applications

  • High-Accuracy Process Control
  • Isolated Data Acquisition
  • Portable Data Logging
  • Remote Digital Signal Processing

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