Overview
The PGA204BU, produced by Texas Instruments, is a low-cost, general-purpose programmable-gain instrumentation amplifier. It offers excellent accuracy and versatility, making it ideal for a wide range of applications. The PGA204BU is part of the PGA204 series, which includes digitally programmable gains of 1, 10, 100, and 1000 V/V. This amplifier is designed to operate with low offset voltage, low offset voltage drift, and low input bias current, making it suitable for various analog signal processing tasks.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Gain | 1, 10, 100, 1000 | V/V |
| Input Offset Voltage | ±50 | µV |
| Input Offset Voltage Drift | ±0.25 | µV/°C |
| Input Bias Current | 2 | nA |
| Quiescent Current | 5.2 | mA |
| Supply Voltage Range | ±4.5 to ±18 | V |
| Operating Temperature Range | –40 to +85 | °C |
| Package Type | 16-Pin SOIC (DW) | |
| Slew Rate | 0.7 | V/µs |
| Common-Mode Rejection Ratio (CMRR) at G=1000 | 115 | dB |
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 ratio (CMRR): 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
Q & A
- What are the programmable gain settings of the PGA204BU?
The PGA204BU has programmable gain settings of 1, 10, 100, and 1000 V/V. - What is the input offset voltage of the PGA204BU?
The input offset voltage of the PGA204BU is ±50µV max. - What is the operating temperature range of the PGA204BU?
The operating temperature range of the PGA204BU is –40°C to +85°C. - What type of packages is the PGA204BU available in?
The PGA204BU is available in 16-pin plastic DIP and SOL-16 surface-mount packages. - What is the quiescent current of the PGA204BU?
The quiescent current of the PGA204BU is 5.2mA typ. - Does the PGA204BU require a separate logic supply?
No, the PGA204BU does not require a separate logic supply. - What is the common-mode rejection ratio (CMRR) of the PGA204BU at G=1000?
The CMRR of the PGA204BU at G=1000 is 115dB. - What is the slew rate of the PGA204BU?
The slew rate of the PGA204BU is 0.7 V/µs. - Can the PGA204BU withstand high input voltages?
Yes, the PGA204BU can withstand up to ±40V on the analog inputs without damage. - What are some typical applications of the PGA204BU?
The PGA204BU is typically used in data acquisition systems, general-purpose analog boards, and medical instrumentation.
