Texas Instruments TLV34xx Low Voltage Rail-to-Rail Output Op Amps
Texas Instruments TLV34xx Low Voltage Rail-to-Rail Output CMOS Operational Amplifiers (Op Amps) with low-power, low-voltage, and rail-to-rail output swing capabilities. The PMOS input stage offers an offset voltage of 0.3mV (typ.) and an ultra-low input bias current of 1pA (typ.). The A grade (TLV34xA) has a low offset voltage of 1.25mV (max.) at 25°C for applications requiring excellent DC precision. These single-supply amplifiers are designed specifically for ultra-low-voltage (1.5V to 5V) operation, with a common-mode input voltage range that typically extends from –0.2V to 0.5V from the positive supply rail.
The Texas Instruments TLV341 (single) and TLV342 (dual) in the X2QFN package offer a shutdown (SHDN) pin that can be used to disable the device. The supply current is reduced to 45pA (typical) in shutdown mode. The TLV341 is suitable for the most space-constrained applications, as it uses either the SOT-232 or smaller SC-70 packages. The dual TLV342 is offered in X2QFN, SOIC, and VSSOP packages. The TLV34xx is also suitable for various commercial and industrial applications using the extended industrial temperature range from -40°C to 125°C.
Features
- 1.8V and 5V performance
- Low offset (A Grade)
- 1.25mV (max.) (25°C)
- 1.7mV (max.) (-40°C to 125°C)
- Rail-to-rail output swing
- Wide common-mode input voltage range of –0.2V to (V+ –0.5V)
- Input bias current of 1pA (typ.)
- Input offset voltage of 0.3mV (typ.)
- Low supply current of 70µA/channel
- Low shutdown current of 10pA (typ.) per channel
- Gain bandwidth of 2.3MHz (typ.)
- 0.9V/µs (typ.) slew rate
- 5µs (typ.) turnon time from shutdown
- 20nV/√Hz input referred voltage noise (at 10kHz)
- ESD protection exceeds JESD 22
- 2000V human-body model (HBM)
- 750V charged-device model (CDM)
Applications
- Cellular phones
- Consumer electronics (laptops)
- Audio preamplifier for voice
- Portable and battery-powered electronic equipment
- Supply current monitoring
- Battery monitoring
- Buffers
- Filters
Functional Block Diagram
Đã phát hành: 2025-01-15
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