General Description

The MAX1240/MAX1241 low-power, 12-bit analog-to digital converters (ADCs) are available in 8-pin packages. The MAX1240 operates with a single +2.7V to +3.6V supply, and the MAX1241 operates with a single +2.7V to +5.25V supply. Both devices feature a 7.5µs successive-approximation ADC, a fast track/hold (1.5µs), an on-chip clock, and a high-speed, 3-wire serial interface.

Features

♦ Single-Supply Operation:

+2.7V to +3.6V (MAX1240)

+2.7V to +5.25V (MAX1241)

♦ 12-Bit Resolution

♦ Internal 2.5V Reference (MAX1240)

♦ Small Footprint: 8-Pin DIP/SO Packages

♦ Low Power: 3.7µW (73ksps, MAX1240)

3mW (73ksps, MAX1241)

66µW (1ksps, MAX1241)

5µW (power-down mode)

♦ Internal Track/Hold

♦ SPI/QSPI/MICROWIRE 3-Wire Serial Interface

♦ Internal Clock

Applications

Battery-Powered Systems

Portable Data Logging

Isolated Data Acquisition

Process Control

Instrumentation