1FEATURES
23· Complete 12-Bit Data Acquisition System in
a Tiny SOT-23 Package
· Low Current Consumption: Only 90μA
· Integral Nonlinearity: 1LSB Max
· Single-Cycle Conversion
· Programmable Gain Amplifier
Gain = 1, 2, 4, or 8
· 128SPS Data Rate
· I2C Interface with Two Available Addresses
· Power Supply: 2.7V to 5.5V
· Pin- and Software-Compatible with 16-Bit
ADS1100

APPLICATIONS
· Voltage Monitors
· Battery Management
· Industrial Process Control
· Consumer Goods
· Temperature Measurement

DESCRIPTION
The ADS1000 is an I2C-compatible serial interface
Analog-to-Digital (A/D) converter with differential
inputs and 12 bits of resolution in a tiny SOT23-6
package. Conversions are performed ratiometrically, using the power supply as the reference voltage. The
ADS1000 operates from a single power supply
ranging from 2.7V to 5.5V.
The ADS1000 performs conversions at a rate of 128
samples per second (SPS). The onboard
programmable gain amplifier (PGA), which offers
gains of up to 8, allows smaller signals to be measured with high resolution. In single-conversion
mode, the ADS1000 automatically powers down after
a conversion, greatly reducing current consumption
during idle periods.
The ADS1000 is designed for applications where
space and power consumption are major
considerations. Typical applications include portable
instrumentation, consumer goods, and voltage
monitoring.