Linear Technology LTC1274CSW#TRPBF

Description
The LTC1274/LTC1277 are 12-bit, 100ksps A/D converters that consume only 10mW of power. They feature a 2µs sample-and-hold, a precision reference, and an internally trimmed clock. The converters can operate from a single 5V or ±5V supply and can convert unipolar (0V to 4.096V) or bipolar (±2.048V) inputs. The LTC1274 has a single-ended input and a 12-bit parallel data format, while the LTC1277 has a differential input and a 2-byte read format. Both converters offer two power-down modes: Sleep mode, which draws only 1µA, and Nap mode (LTC1277 only), which draws 180µA and allows for instant wake-up.

Features
Low power dissipation: 10mW
Sample rate: 100ksps
Samples inputs beyond Nyquist, 72dB S/(N D) and 82dB THD at fiN=100kHz
Single supply 5V or ±5V operation
Power shutdown to 1µA in Sleep mode
180µA Nap mode (LTC1277) with instant wake-up
Internal reference can be overdriven
Internal synchronized clock
0V to 4.096V or ±2.048V input ranges (1mV/LSB)
24-lead SO package

Applications
Battery-powered portable systems
High speed data acquisition for PCs
Digital signal processing
Multiplexed data acquisition systems
Audio and telecom processing
Spectrum analysis