TI TLC274ACN

The TLC274 and TLC279 quad operational amplifiers combine a wide range of input offset voltage grades with low offset voltage drift, high input impedance, low noise, and speeds approaching that of general-purpose BiFET devices. These devices use Texas Instruments silicongate LinCMOS technology, which provides offset voltage stability far exceeding the stability available with conventional metal-gate processes. The extremely high input impedance, low bias currents, and high slew rates make these cost-effective devices ideal for applications which have previously been reserved for BiFET and NFET products. Four offset voltage grades are available (C-suffix and I-suffix types), ranging from the low-cost TLC274 (10 mV) to the highprecision TLC279 (900 μV). These advantages, in combination with good common-mode rejection and supply voltage rejection, make these devices a good choice for new state-of-the-art designs as well as for upgrading existing designs. In general, many features associated with bipolar technology are available on LinCMOS operational amplifiers, without the power penalties of bipolar technology. General applications such as transducer interfacing, analog calculations, amplifier blocks, active filters, and signal buffering are easily designed with the TLC274 and TLC279. The devices also exhibit low voltage single-supply operation, making them ideally suited for remote and inaccessible battery-powered applications. The common-mode input voltage range includes the negative rail. A wide range of packaging options is available, including small-outline and chip-carrier versions for high-density system applications. The device inputs and outputs are designed to withstand -100 mA surge currents without sustaining latch-up. The TLC274 and TLC279 incorporate internal ESD-protection circuits that prevent functional failures at voltages up to 2000 V as tested under MIL-STD-883C, Method 3015.2; however, care should be exercised in handling these devices as exposure to ESD may result in the degradation of the device parametric performance.

• Trimmed Offset Voltage: TLC279... 900 μV Max at 25°C, VDD = 5 V
• Input Offset Voltage Drift... Typically 0.1 μV/Month, Including the First 30 Days
• Wide Range of Supply Voltages Over Specified Temperature Range:
  • 0°C to 70°C... 3 V to 16 V
  • -40°C to 85°C... 4 V to 16 V
  • -55°C to 125°C... 4 V to 16 V
• Single-Supply Operation
• Common-Mode Input Voltage Range Extends Below the Negative Rail (C-Suffix and I-Suffix Versions)
• Low Noise... Typically 25 nV/√Hz at f = 1 kHz
• Output Voltage Range Includes Negative Rail
• High Input Impedance... 10^12 Ω Typ
• ESD-Protection Circuitry
• Small-Outline Package Option Also Available in Tape and Reel
• Designed-In Latch-Up Immunity

• transducer interfacing
• analog calculations
• amplifier blocks
• active filters
• signal buffering
• remote and inaccessible battery-powered applications
• high-density system applications