Automotive qualified, CMOS operational amplifier ideal for high impedance sensor interfaces

The Texas Instruments’ TLV316-Q1 (single), TLV2316-Q1 (dual), and TLV4316-Q1 (quad) devices comprise a family of general-purpose, low-power operational amplifiers. Features such as rail-to-rail input and output swings, low quiescent current (400µA/ch typical) combined with a wide bandwidth of 10MHz, and very-low noise (12nV/vHz at 1kHz) make this family suitable for a circuits requiring a good speed and power ratio. The low input bias current supports operational amplifiers that are used in applications with megaohm source impedances. The low-input bias current of the devices yields a very-low current noise to make the family attractive for high impedance sensor interfaces. The robust design of the devices provides ease-of-use to the circuit designer: a unity-gain stable, integrated RFI and EMI rejection filter, no phase reversal in overdrive condition, and high ESD protection (4kV HBM). These devices are optimized for low-voltage operation as low as 1.8V (±0.9V) and up to 5.5V (±2.75V). This latest addition of low-voltage CMOS operational amplifiers to the portfolio, in conjunction with the TLVx313-Q1 and TLVx314-Q1 series, offer a family of bandwidth, noise, and power options to meet the needs of a wide variety of applications.