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Precision Instrumentation Amplifier from TI Targets Optical Networking, Industrial Process Control and Test and Instrumentation
Excellent DC Accuracy, Rail-to-Rail I/O and Long-Term Stability Improve System Performance
TUCSON, Ariz. (Dec. 7, 2001) - Texas Instruments (TI) Incorporated (NYSE: TXN) today introduced a single supply instrumentation amplifier from the company's Burr-Brown product line which incorporates a proprietary circuit technology to achieve exceptional rail-to-rail input/output performance and excellent DC accuracy (125uV offset, 1uV/C drift). The unique device is ideal for a wide range of general purpose to high accuracy applications found in optical networking, test and instrumentation, industrial process control, automotive and medical equipment. See http://www.ti.com/sc/aap7247u.
"The INA326 is the first instrumentation amplifier to offer such an enhanced combination of key industry requirements in precision signal acquisition - accuracy, true single supply, tiny package size and low price," said John Brown, strategic marketing engineer for TI's high-performance linear products. "Furthermore, this completely tested device provides the DC accuracy and excellent long-term stability to improve the performance of applications previously incorporating expensive discretely built or auto-zeroed IA solutions."
Considered the benchmark for precision signal acquisition, instrumentation amplifiers are ideal for extracting differential signals from interfering voltages to maintain accuracy in electrically noisy environments.
Low offset voltage (125uV max), low offset drift (1uV/C), very low 1/f noise, high common-mode rejection (110dB, G = 100), and excellent long-term stability offer the high precision required in temperature sensors (thermocouples, thermopiles, thermistors, RTDs), pressure bridges, weigh scales, medical monitors and general purpose 12 to 16-bit data acquisition systems. The auto-calibration techniques in the INA326 assure very low offset voltage throughout the life of the product, thus eliminating customers' recalibration and drift concerns.
The device's true single supply operation on +2.7V to +5.5V, input common-mode range (20mV beyond rails), and wide output swing (within 10mV of rails) are critical to low-voltage battery-operated systems, buffering input for wide dynamic range analog-to-digital converters and current shunt measurements at ground.
The INA326's small package size and low price make it highly attractive for high-density layout in multi-channel systems and low-profile PCMCIA computer cards.
Available Today
The INA326 is packaged in an MSOP-8 and priced at $1.65 in 1,000 piece quantities. The device is specified over the extended industrial temperature range of -40C to +85C, with high-temperature operation from -40C to +125C.
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