Low-power rail-to-rail op amps in SOT-23

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Low-power rail-to-rail op amps in SOT-23

Product Features

Rail-to-rail output
Micropower …I_DD = 25 µA (max) – TLV2711
High speed …BW = 2 MHz, S/R = 1.6 V/µs – TLV2731
Low noise voltage…Vn = 15 nV–TLV2731
0°C to 70°C and –40°C to 85°C temperature grades

The TLV2711, TLV2721, and TLV2731 are a family of low voltage rail-to-rail op amps in the SOT-23 package. These products provide a choice of either high speed performance or micropower operation in battery powered and space-conscious applications.

The TLV2711 is a micropower device targeted at battery-powered systems where power consumption needs to be minimized. It has a maximum supply current of 25 µA (V_DD = 5 V). DC applications are well served with an input offset voltage of 400 µV (typ) and a 3 V noise floor of 22 nV/– one fourth of the nearest competitor’s micropower SOT-23 op amps.

The TLV2731 has a bandwidth of 2 MHz and a slew rate of 1.6 V/µs for applications requiring better ac performance. It has a noise floor of 15 nV/ and can drive 600 loads for telecom applications.

The TLV2721 offers a compromise between the micropower TLV2711 and the ac performance and output drive of the TLV2731. All three devices are rated for operation from 2.7 V to 10 V, and specified and characterized at both V_DD = 3 V and 5 V. The TLV27x1 family is pinout compatible with National Semiconductor and provides significantly better performance in power consumption, precision, and speed.

The SOT-23 package is one third the size of an SOIC-8 and lets designers place single amplifiers very near the signal source, minimizing noise pick-up from long PCB traces. Furthermore, amplifiers can be built into sensors or squeezed into tightly packed layouts.

The TLV2711/21/31 are available in an ultra-small SOT-23 package.

Vol 24 November, 1997