GENERAL DESCRIPTION

The SGM51652H4 and SGM51652H8 are 4-channel and 8-channel, 16-bit resolution, high-precision successive approximation (SAR) analog-to-digital converters (ADCs).

These ADCs are powered by a single unipolar 5V, and support true bipolar ±10.24V, ±5.12V, and ±2.56V inputs, as well as unipolar input ranges of 0V to 10.24V and 0V to 5.12V. The input range is configured by software.

These chips provide over-voltage protection up to ±20V at the input.

These chips have an on-chip high accuracy and low drift 10ppm reference.

The input impedance of these chips is ~1MΩ and it is independent of input range selection.

The digital interface is compatible to the traditional SPI protocol.

FEATURES

● Supported Input Ranges:

 Bipolar Single-Ended Ranges: ±10.24V, ±5.12V, and ±2.56V

 Unipolar Single-Ended Ranges: 0V to 10.24V and 0V to 5.12V

 Bipolar Differential Ranges: ±10.24V, ±5.12V, and ±2.56V

● Supply Voltage Ranges:

 Analog Supply: 5V

 I/O Supply: 1.65V to 5V

● On-Chip Reference: 4.096V

● Differential Nonlinearity (DNL): -0.6/+0.9LSB (TYP)

● Integral Nonlinearity (INL): ±1.3LSB (TYP)

● Signal-to-Noise Ratio (SNR): 89.5dB (TYP)

● Total Harmonic Distortion (THD): -99dB (TYP)

● Alarm Features

● Daisy-Chain Operation

● -40℃ to +125℃ Operating Temperature Range

● Available in a Green TSSOP-38 Package

APPLICATIONS

Power Automation

Protection Relays

PLC Analog Input Modules

Factory Automation