Overview
The LPV812DGKR is a dual-channel, ultra-low-power precision operational amplifier produced by Texas Instruments. This amplifier is part of the LPV81x family, designed for 'Always ON' sensing applications in battery-powered wireless and low-power wired equipment. With a quiescent current of 425 nA per channel and a bandwidth of 8 kHz, the LPV812DGKR offers high precision while minimizing power consumption, making it ideal for devices such as gas detectors and portable electronic devices where battery life is critical.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Number of Channels | 2 Channel |
| Package | 8-VSSOP (DGK) |
| Pins | 8 |
| Supply Voltage - Min | 1.6 V |
| Supply Voltage - Max | 5.5 V |
| GBP - Gain Bandwidth Product | 8 kHz |
| Output Current per Channel | 4.7 mA |
| SR - Slew Rate | 2 mV/us |
| Vos - Input Offset Voltage | 300 µV |
| Ib - Input Bias Current | 100 fA |
| Operating Supply Current | 425 nA |
| CMRR - Common Mode Rejection Ratio | 98 dB |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +125°C |
Key Features
- Nanopower Supply Current: 425 nA/channel
- Offset Voltage: 300 µV (max)
- TcVos: 1 µV/°C
- Gain-Bandwidth: 8 kHz
- Unity-Gain Stable
- Low Input Bias Current: 100 fA
- Wide Supply Range: 1.6 V to 5.5 V
- Rail-to-Rail Output
- No Output Reversals
- EMI Protection
- Temperature Range: –40°C to 125°C
- Industry Standard Packages: Single in 5-pin SOT-23, Dual in 8-pin VSSOP
- CMOS input stages with fempto-amp bias currents
- Negative-rail sensing input stage and rail-to-rail output stage
Applications
The LPV812DGKR is particularly suited for 'Always ON' sensing applications in battery-powered wireless and low-power wired equipment. Key applications include:
- Gas detectors
- Portable electronic devices where prolonged battery life is critical
- Low power wired equipment
- Battery-powered wireless devices
Q & A
- What is the quiescent current of the LPV812DGKR? The quiescent current is 425 nA per channel.
- What is the gain-bandwidth product of the LPV812DGKR? The gain-bandwidth product is 8 kHz.
- What is the input offset voltage of the LPV812DGKR? The input offset voltage is 300 µV (max).
- What is the operating temperature range of the LPV812DGKR? The operating temperature range is –40°C to 125°C.
- Does the LPV812DGKR have EMI protection? Yes, the LPV812DGKR has built-in EMI protection.
- What type of input stages does the LPV812DGKR have? The LPV812DGKR has CMOS input stages with fempto-amp bias currents.
- What is the common mode rejection ratio (CMRR) of the LPV812DGKR? The CMRR is 98 dB.
- Is the LPV812DGKR RoHS compliant? Yes, the LPV812DGKR is RoHS compliant.
- What is the package type of the LPV812DGKR? The package type is 8-VSSOP (DGK).
- What is the slew rate of the LPV812DGKR? The slew rate is 2 mV/us.
