Touchstone Announces Its First Analog Devices Alternate Source Part: 12-bit, 125-ksps ADC
Touchstone Semiconductor today announced the immediate availability of the TSA7887, its first Analog Devices alternate source IC. The new TSA7887 is a two-channel, 12-bit, 125-ksps analog-to-digital converter (ADC) that is designed to be used as a drop-in replacement for the Analog Devices AD7887.
Priced at $1.25 in 1,000-piece quantities, the new Touchstone TSA7887 is $3 less expensive, pin-compatible, specification-identical, and functionally identical to the Analog Devices AD7887. Touchstone now offers a total of 17 parts from Maxim and Analog Devices in its alternate-source analog IC family.
The new TSA7887's features include: A $1.25 price at 1k-piece quantities -- $3 lower than the AD7887, according to Touchstone. 2.6-mW power consumption at 125ksps while operating from a single +2.7V to +5.25V. Four user-programmable, low-power operating modes including auto standby and auto power down. Two INL options: TSA7887B with ±1LSB INL and TSA7887A with ±2LSB INL. -40°C to +125°C operating temperature range. One or two analog inputs each with an input range from 0V to VREF or 0V to VDD. And an integrated 2.5V reference.
The TSA7887 is designed for use as a stand-alone 12-bit ADC in low-power, industrial, process control and data-acquisition applications. Some portable and fixed-form-factor applications for the TSA7887 include: optical sensors, touch panels, personal digital assistants, programmable logic controllers, and medical instrumentation.
The TSA7887 is available in 8-pin SOIC and MSOP packages and is fully specified from -40°C to +125°C. It is in stock and ready to ship from Touchstone's distributors: Digi-Key and Future Electronics.
