MAX1113
Description
____________________________Features o +4.5V to +5.5V Single Supply o Low Power: 135µA at 50ksps 13µA at 1ksps o 8-Channel Single-Ended or 4-Channel Differential Inputs (MAX1112) o 4-Channel Single-Ended or 2-Channel Differential Inputs (MAX1113) o Internal Track/Hold; 50kHz Sampling Rate o Internal 4.096V Reference o SPI/QSPI/MICROWIRE-patible Serial Interface o Software-Configurable Unipolar or Bipolar Inputs o Total Unadjusted Error: ±1LSB (max) ±0.3LSB (typ) MAX1112/MAX1113 The MAX1112/MAX1113 are low-power, 8-bit, 8-channel analog-to-digital converters (ADCs) that feature an internal track/hold, voltage reference, clock, and serial interface.
Key Features
- They operate from a single +4.5V to +5.5V supply and consume only 135µA while sampling at rates up to 50ksps
- Successive-approximation conversions are performed using either the internal clock or an external serial-interface clock
- A serial-strobe output provides the end-of-conversion signal for interrupt-driven processors
- The MAX1112/MAX1113 have a software-programmable, 2µA automatic power-down mode to minimize power consumption
- Using power-down, the supply current is reduced to 13µA at 1ksps, and only 82µA at 10ksps
- Power-down can also be controlled using the SHDN input pin
- Accessing the serial interface automatically powers up the device
- The MAX1112 is available in 20-pin SSOP and DIP packages
- The MAX1113 is available in small 16-pin QSOP and DIP packages
