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.