Overview
The TLV8812DGKR, part of the TLV8812 family, is a dual-channel precision ultra-low-power operational amplifier designed by Texas Instruments. This component is ideal for cost-optimized, 'Always ON' sensing applications in battery-powered wireless and low-power wired equipment. With a quiescent current of 425 nA per channel and a trimmed offset voltage of under 500 µV, the TLV8812 amplifiers offer high precision while minimizing power consumption. They feature a CMOS input stage that enables femto-amp bias currents, reducing errors in high source impedance sensing applications. Additionally, built-in EMI protection reduces sensitivity to unwanted RF signals.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (V+ - V-) | 1.7 | 5.5 | V | |
| Offset Voltage (VOS) | ±55 | ±500 | µV | |
| Input Offset Drift (ΔVOS/ΔT) | ±1 | µV/°C | ||
| Gain-Bandwidth | 6 | kHz | ||
| Input Bias Current (IB) | ±100 | fA | ||
| Quiescent Current per Channel (IQ) | 425 | 700 | nA | |
| Common-Mode Rejection Ratio (CMRR) | 80 | 98 | dB | |
| Temperature Range | -40 | 125 | °C | |
| Package Type | 8-pin VSSOP (DGK) |
Key Features
- Nanopower supply current: 425 nA/channel
- Offset voltage: 500 µV (max)
- Input offset drift: 1 µV/°C
- Gain-bandwidth: 6 kHz
- Unity-gain stable
- Low input bias current: 100 fA
- Wide supply range: 1.7 V to 5.5 V
- Rail-to-rail output
- No output reversals
- EMI protection
- Temperature range: –40°C to 125°C
- Industry standard packages: 8-pin VSSOP (DGK)
Applications
- Gas detectors (CO and O2)
- PIR motion detectors
- Current sensing
- Thermostats
- IoT (Internet of Things) remote sensors
- Active RFID readers and tags
- Portable medical equipment
- Portable glucose monitors
Q & A
- What is the typical quiescent current per channel for the TLV8812?
The typical quiescent current per channel for the TLV8812 is 425 nA.
- What is the maximum offset voltage for the TLV8812?
The maximum offset voltage for the TLV8812 is 500 µV.
- What is the gain-bandwidth of the TLV8812?
The gain-bandwidth of the TLV8812 is 6 kHz.
- Is the TLV8812 unity-gain stable?
- What is the input bias current of the TLV8812?
The input bias current of the TLV8812 is ±100 fA.
- What is the supply voltage range for the TLV8812?
The supply voltage range for the TLV8812 is 1.7 V to 5.5 V.
- Does the TLV8812 have rail-to-rail output?
- What kind of EMI protection does the TLV8812 have?
The TLV8812 has built-in EMI protection to reduce sensitivity to unwanted RF signals.
- What is the temperature range for the TLV8812?
The temperature range for the TLV8812 is –40°C to 125°C.
- In what package is the TLV8812DGKR available?
The TLV8812DGKR is available in an 8-pin VSSOP (DGK) package.
