Low-power dual op-amp for battery-powered signal chains
The TLC27M2IDR is a dual CMOS operational amplifier from Texas Instruments' LinCMOS™ series, designed for applications where supply current is the binding constraint. Each of the two amplifiers draws 285 µA total, making this part a fit for multi-channel sensor interfaces, portable instrumentation, and battery-monitoring circuits where the op-amp's own quiescent draw must stay below a few hundred microamps per channel. The 635 kHz gain-bandwidth product and 0.62 V/µs slew rate place it in the general-purpose band — fast enough for audio-frequency filtering, 10 kHz data acquisition, and control-loop compensation, but not intended for video or high-speed ADC drivers where slew rates above 10 V/µs are typical.
CMOS input stage and bias current floor
The CMOS input stage delivers an input bias current of 0.7 pA typical, which is the key advantage over bipolar-input op-amps in this class. For a high-impedance sensor such as a pH probe or a photodiode with a 10 MΩ source impedance, the voltage error from bias current is 7 µV — negligible compared to the 1.1 mV typical input offset voltage. This means the TLC27M2IDR can buffer signals from high-source-impedance transducers without an external JFET buffer. The supply voltage range spans 4 V to 16 V single supply, or ±2 V to ±8 V split supply. This covers the common 5 V and 12 V industrial rails, and the 16 V ceiling accommodates unregulated battery voltages in 12 V systems. The output stage can source or sink 30 mA per channel, enough to drive a 2 kΩ load to within a few hundred millivolts of the rails.
Package and temperature grade for production boards
The TLC27M2IDR is supplied in an 8-pin SOIC package (8-SOIC, 0.154-inch body width, 3.90 mm width per the JEDEC MS-012 variation). The supplier device package is 8-SOIC, and the part is available in Tape & Reel (TR) or Cut Tape (CT) options — the 'R' suffix in the order code indicates the reel format. The 1.27 mm pin pitch is compatible with standard 8-pin SOIC footprints; no board respin is needed if replacing a similar SOIC-8 op-amp. The operating temperature range is -40°C to +85°C, which covers industrial and commercial environments. This is the standard 'I' grade (industrial) in TI's nomenclature — not the extended automotive range, but sufficient for factory-floor sensor modules, test equipment, and outdoor telecom enclosures that stay within this band.
Lifecycle and compliance status
For volume procurement, the part is quoted to order against the BOM quantity. The Tape & Reel packaging is the standard production format; Cut Tape quantities are available for prototype or low-volume builds.