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+2.7V, Low-Power, 2-Channel, 108ksps, Serial 10-Bit ADCs in 8-Pin µMAX

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Smallest 2-Channel 10-Bit ADCs

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Part Details
Part Models 2
1ku List Price
price unavailable
  • Single-Supply Operation (+2.7V to +5.25V)
  • Two Single-Ended Channels (MAX157)
  • Single Pseudo-Differential Channel (MAX159)
  • Low Power
    • 0.9mA (at 108ksps, +3V)
    • 100µA (at 10ksps, +3V)
    • 10µA (at 1ksps,+3V)
    • < 0.2µA (power-down mode)
  • Internal Track/Hold
  • 108ksps Sampling Rate
  • SPI/QSPI/MICROWIRE-Compatible 3-Wire Serial Interface
  • Space-Saving 8-Pin µMAX Package
  • Pin-Compatible 12-Bit Upgrades Available
Additional Details
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The MAX157/MAX159 low-power, 10-bit analog-to-digital converters (ADCs) are available in 8-pin µMAX® and DIP packages. Both devices operate with a single +2.7V to +5.25V supply and feature a 7.4µs successive-approximation ADC, automatic power-down, fast wake-up (2.5µs), an on-chip clock, and a high-speed, 3-wire serial interface.

Power consumption is only 3.2mW (VDD = +3.6V) at the maximum sampling rate of 108ksps. At slower throughput rates, the 0.2µA automatic shutdown further reduces power consumption.

The MAX157 provides 2-channel, single-ended operation and accepts input signals from 0 to VREF. The MAX159 accepts pseudo-differential inputs ranging from 0 to VREF. An external clock accesses data through the 3-wire serial interface, which is SPI™, QSPI™, and MICROWIRE™ compatible.

Excellent dynamic performance and low power, combined with ease of use and a small package size, make these converters ideal for battery-powered and data acquisition applications, or for other circuits with demanding power-consumption and space requirements. For pin-compatible 12-bit upgrades, see the MAX144/MAX145 data sheet.


  • Battery-Powered Applications
  • Instrumentation
  • Isolated Data Acquisition
  • Medical Instruments
  • Portable Data Logging
  • Process Control Monitoring
  • System Supervision
  • Test Equipment
Part Models 2
1ku List Price
price unavailable

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