32 bit 8Ksps sigma delta ADC for Seismic Precision application in TSMC 180nm

Overview

32-bit delta sigma analog-to-digital converter (ADC) containing a low noise programmable gain amplifier (PGA) and 2 channel input multiplexers. This ADC is very well suited for seismic monitoring kind of applications requiring ultra-high accuracy.
The PGA has high input impedance which facilitating interface with external instruments like geophone over gains ranging from 1 to 64

Key Features

High resolution:127dB SNR (250SPS)
Low noise PGA:
Noise=5nV/?Hz
Programmable gain (1,2 4,8,16,32,64)
Two channel input multiplexers
Power Supply:
ANALOG (AVDD) = Unipolar(5V) or Bipolar(±2.5V)
DIGITAL (DVDD) = 1.65V to 3.6 V
Programmable output data rate: 250 SPS to 4 kSPS
High CMRR: -110 dB
High accuracy, THD: -122dB
Offset and gain calibration
SYNC input
Programmable power down and reset

Benefits

Ultra-low power delta sigma ADC
High performance up-to 127dB dynamic range
Industry best IP specifications

Applications

Seismic monitoring
Industrial process control
High-accuracy instrumentation

Deliverables

Datasheet
Hard Macro (GDSII)
Characterisation Report (as applicable)
Abstract View (LEF)
Integration and Customer Support

Technical Specifications

Foundry, Node

180nm

Maturity

Silicon validated

Availability

June 2019

Request Info