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MAX191 BENG
DIP-24
12-bit analog-to-
digital converter (ADC) featuring differential inputs,
track/hold (T/H), internal voltage reference, internal or
external clock, and parallel or serial μP interface.
The MAX191 has a 7.5μs conversion time, a 2μs acquisition
time, and a guaranteed 100ksps sample rate.
The MAX191 operates from a single +5V supply or from
dual ±5V supplies, allowing ground-referenced bipolar
input signals. The device features a logic power-down
input, which reduces the 3mA V DD supply current to
50μA max, including the internal-reference current.

- 12-Bit Resolution, 1/2LSB Linearity
- +5V or ±5V Operation
- Built-In Track/Hold
- Internal Reference with Adjustment Capability
- Low Power: 3mA Operating Mode
- 20μA Power-Down Mode
- 100ksps Tested Sampling Rate
- Serial and 8-Bit Parallel μP Interface