24-bit 19.2Ksps Analog front end (AFE) having sigma delta ADC for Industrial process control and low power sensors

Overview

The 24b ADC IP has a fourth-order, inherently stable, delta-sigma (??) modulator that provides good noise and linearity performance designed for the needs of industrial process control, precision instrumentation, and similar applications. The ADC has wide dynamic range, with scalable data rates up to 19.2Ksps. The digital filter can be programmed for a fast-settling mode where the conversions settle in a single cycle, or programmed

Key Features

Programmable Speed and power modes

Full power: 10 SPS to 19,200 SPS
Mid power: 2.34 SPS to 4800 SPS
Low power: 1.17 SPS to 2400 SPS

High power mode

With SINC4 filter, 2.4KHz BW

ENOB 22b@10SPS
ENOB= 17.1b@9.6Ksps

With SINC3 filter, 2.4KHz BW

ENOB 22.5b@10SPS
ENOB= 15b@9.6Ksps

MID power mode

With SINC4 filter, 2.4KHz BW

ENOB 21.4b@10SPS
ENOB= 15b@4.8Ksps

With SINC3 filter, 2.4KHz BW

ENOB 22b@10SPS
ENOB= 12.5b@4.8Ksps

LOW power mode

With SINC4 filter, 1.2KHz BW

ENOB 20.9b@10SPS
ENOB= 15b@2.4Ksps

With SINC3 filter, 1.2KHz BW

ENOB 21.5b@10SPS
ENOB= 12.5b@2.4Ksps

Power Supply:

ANALOG (AVDD) = Unipolar(5V) or Bipolar(±2.5V)
DIGITAL (DVDD) = 1.65V to 3.6 V

Offset and gain calibration
Programmable power down and reset
-40C to 125C operating temperature range
Technology: SMIC 180nm

Benefits

Ultra-low power delta sigma ADC
High performance up-to 124dB dynamic range
Industry best IP specifications

Applications

Low power Sensor measurement
Industrial Process Control
Scientific Instrumentation
Medical

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

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