Product category:
Analogue and Mixed Signal ICs
News Release from: Texas Instruments (April 2001-March 2006) | Subject: ADS1224
Edited by the Electronicstalk Editorial
Team on 15 June 2004
Convertors come in smaller packages
The ADS1224 is billed as the industry's smallest four-channel, 24bit delta-sigma analogue-to-digital convertor (ADC).
The ADS1224 is billed as the industry's smallest four-channel, 24bit delta-sigma analogue-to-digital convertor (ADC) Packaged in a small TSSOP-20 and consuming only 300uA of current, this easy-to-use data convertor is designed for high-resolution measurement applications where space and power consumption are critical, such as portable instrumentation, portable medical equipment, industrial process control, remote sensors, smart transmitters and weigh scales
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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"The ADS1224 delivers excellent performance at 240sample/s datarate, low power and wide dynamic range in a miniature TSSOP package".
"This unmatched combination of performance, flexibility and size provides customers with a high-performance industrial ADC specifically designed for demanding measurements in portable and power-constrained applications", said Jim Todsen, Product Line Manager for TI's Oversampling Data Convertors.
The ADS1224 includes a four-channel differential input multiplexer, which accepts rail-to-rail inputs and features a temperature sensor for ambient temperature measurement.
The optional input buffer allows the direct connection to high-impedance sensors without bias current errors.
Dedicated I/O pins directly control the input multiplexer, temperature sensor and input buffer, eliminating the need for onboard control registers.
The ADS1224 quickly shuts down (standby mode) while idle between measurements to dramatically reduce the overall power consumption (below 1uA).
The simple, two-wire interface easily connects to all popular microcontrollers, including TI's MSP430, and provides all the necessary control for data retrieval, self-calibration and standby mode.
Multiple devices can be synchronised for true simultaneous sampling.
The device supports 2.7 to 5.5V analogue and digital supplies and a maximum operating temperature range of -55 to +125C.
The ADS1224 is available now from TI and its authorised distributors.
The device is priced from $3.25 in 1000-piece quantities (suggested resale pricing) with evaluation modules available for $49.
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