Overview
The PGA204AUG4 is a programmable-gain instrumentation amplifier produced by Texas Instruments. It is part of the PGA204 series, known for its low cost, high accuracy, and versatility. This amplifier is designed for a wide range of applications, including data acquisition systems, general-purpose analog boards, and medical instrumentation. The PGA204AUG4 offers digitally selectable gains of 1, 10, 100, and 1000 V/V, making it highly adaptable to various signal processing needs.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Gain | 1, 10, 100, 1000 | - | - | V/V |
| Input Offset Voltage (RTI) at G=1 | ±10 | ±50 | ±125 | µV |
| Input Offset Voltage Drift | ±0.1 | ±0.25 | ±1 | µV/°C |
| Input Bias Current | - | 2 | - | nA |
| Quiescent Current | - | 5.2 | 7.5 | mA |
| Power Supply Voltage | ±4.5 | ±15 | ±18 | V |
| Operating Temperature Range | -40 | - | 85 | °C |
| Package Type | SOL-16 Surface Mount | - | - | - |
Key Features
- Digitally programmable gain: 1, 10, 100, 1000 V/V
- Low offset voltage: 50µV max
- Low offset voltage drift: 0.25µV/°C
- Low input bias current: 2nA max
- Low quiescent current: 5.2mA typ
- No logic supply required
- Internal input protection up to ±40V
- High common-mode rejection: 115dB at G=1000
- Available in 16-pin plastic DIP and SOL-16 surface-mount packages
Applications
- Data acquisition systems
- General-purpose analog boards
- Medical instrumentation
- Industrial control systems
- Test and measurement equipment
Q & A
- What are the available gain settings for the PGA204AUG4? The PGA204AUG4 offers digitally selectable gains of 1, 10, 100, and 1000 V/V.
- What is the input offset voltage of the PGA204AUG4? The input offset voltage is 50µV max.
- What is the operating temperature range of the PGA204AUG4? The operating temperature range is -40°C to +85°C.
- What types of packages are available for the PGA204AUG4? The PGA204AUG4 is available in 16-pin plastic DIP and SOL-16 surface-mount packages.
- Does the PGA204AUG4 require a separate logic supply? No, the PGA204AUG4 does not require a separate logic supply.
- What is the common-mode rejection ratio (CMRR) of the PGA204AUG4 at high gain? The CMRR is 115dB at G=1000.
- How is the gain selected on the PGA204AUG4? The gain is selected by two TTL or CMOS-compatible address lines, A0 and A1.
- What is the quiescent current of the PGA204AUG4? The quiescent current is 5.2mA typical.
- What is the maximum safe input voltage for the PGA204AUG4? The maximum safe input voltage is ±40V.
- Can the PGA204AUG4 be used in battery-operated systems? Yes, it can operate with power supplies as low as ±4.5V, making it suitable for battery-operated systems.
