TLC2872Z, TLC2872Y Advanced LinCMOS^TM RAIL-TO-RAIL DUAL OPERATIONAL AMPLIFIERS

SLOS117 - OCTOBER 1992

features

• Free-Air Operating Temperature -40°C to 150°C
• Output Swing Includes Both Supply Rails
• Low Noise . . . 9 nV/Hz\ Typ at f = 1 kHz
• Low Input Bias Current . . . 1 pA Typ
• Common-Mode Input Voltage Range Includes Negative Rail
• High Unity-Gain Bandwidth . . . 2.2 MHz Typ
• High Slew Rate . . . 3.6 V/us Typ
• Low Input Offset Voltage 300 uV Typ at T_A = 25°C
• Macromodel Included

Advanced LinCMOS is a trademark of Texas Instruments Incorporated.

description

The TLC2872Z is a dual rail-to-rail output operational amplifier manufactured using Texas Instruments Advanced LinCMOS^TM process. These devices offer comparable ac performance while having better noise, input offset voltage and power dissipation than existing CMOS operational amplifiers. In addition, the common-mode input voltage range is wider than typical standard CMOS type amplifiers. To take advantage of this improvement in performance, making this device available for a wider range of applications, V_ICR is specified with a larger maximum input offset voltage test limit of ±5 mV. The Advanced LinCMOS^TM process uses a silicon-gate technology to obtain input offset voltage stability with temperature and time that far exceeds that obtainable using metal-gate technology. Also, this technology makes possible input impedance levels that meet or exceed levels offered by top-gate JFET and expensive dielectric-isolated devices.

The TLC2872Z, manufactured using Texas Instruments high-temperature process flow, allows extended temperature operation up to 150°C in a plastic package. This adds extra reliability at the extended temperature and reduces the need for expensive hermetically sealed ceramic packages.

The TLC2872Z, which exhibits high input impedance and low noise, is excellent for small signal conditioning of high impedance sources, such as piezoelectric transducers. In addition, the rail-to-rail output feature with single or split supplies makes this device a great choice for inputs to ADCs in either the unipolar or bipolar mode of operation. This feature, combined with its temperature performance, makes the TLC2872Z ideal for sonobuoys, pressure sensors, temperature controls, active VR sensors, accelerometers, and many other applications.

The inputs and outputs of this device are designed to withstand 100-mA surge current without sustaining latch-up. In addition, internal ESD-protection circuits prevent functional failures up to 2000 V. The device is characterized for operation over the extended (Z) temperature range of -40°C to 150°C.

View more information about generic part numbers:TLC2872

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