FEATURES
16-Bit Resolution
14-Bit Linearity
±2.5V Input Range at 2.5V
Internal Reference Voltage: 2%
Gain Error: 0.5%
Two Independent Delta-Sigma Modulators
Two Input Reference Buffers
On-Chip 20MHz Oscillator
Selectable Internal or External Clock
Operating Temperature Range:
−40°C to +85°C
QFN-24 (4x4) Package

APPLICATIONS
Motor Control
Current Measurement
Industrial Process Control
Instrumentation
Resolver

DESCRIPTION
The ADS1205 is a two-channel, high-performance,
delta-sigma (ΔΣ) modulator with more than 98dB dynamic
range, operating from a single +5V supply. The differential
inputs are ideal for direct connection to transducers in an
industrial environment. With the appropriate digital filter
and modulator rate, the device can be used to achieve
16-bit analog-to-digital (A/D) conversion with no missing
codes. Effective resolution of 14 bits can be obtained with
a digital filter bandwidth of 40kHz at a modulator rate of
10MHz. The ADS1205 is designed for use in
high-resolution measurement applications including
current measurements, smart transmitters, industrial
process control, and resolvers. It is available in a QFN-24
(4x4) package.