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.

特性 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