Overview
The PGA207UA/1K, produced by Texas Instruments, is a digitally programmable gain instrumentation amplifier. It is part of the PGA207 series, which is ideally suited for data acquisition systems, medical and physiological amplifiers, and PC-controlled analog input boards. The PGA207UA/1K offers fast settling times, FET inputs, and internal protection for overloads up to ±40V, making it highly reliable and efficient in various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gains | 1, 2, 5, 10 | V/V |
| Input Bias Current | 100 pA max | A |
| Input Protection | ±40V | V |
| Offset Voltage | 1.5 mV max | mV |
| Settling Time (0.01% for 20V step) | 3.5 µs | µs |
| Bandwidth (-3dB) | 5 MHz (G=1), 1.3 MHz (G=5), 600 kHz (G=10) | Hz |
| Slew Rate | 25 V/µs | V/µs |
| Supply Voltage Range | ±4.5V to ±18V | V |
| Operating Temperature Range | -40°C to +85°C | °C |
| Package Type | SOL-16 Surface-Mount |
Key Features
- Digitally programmable gains (1, 2, 5, 10 V/V)
- Fast settling time of 3.5 µs to 0.01% for a 20V step
- FET inputs with low input bias current (IB = 100 pA max)
- Internal protection for overloads up to ±40V
- Low offset voltage and drift, laser-trimmed for accuracy
- CMOS/TTL-compatible digital inputs for gain selection
- Available in 16-pin SOL-16 surface-mount package
Applications
- Multiple-channel data acquisition systems
- Medical and physiological amplifiers
- PC-controlled analog input boards
- Multiplexed input signal acquisition systems
- Noisy or high-impedance power supply environments requiring decoupling capacitors
Q & A
- What are the programmable gain options for the PGA207UA/1K?
The PGA207UA/1K offers programmable gains of 1, 2, 5, and 10 V/V.
- What is the input bias current of the PGA207UA/1K?
The input bias current is 100 pA max.
- How is the gain selected on the PGA207UA/1K?
The gain is selected using two CMOS/TTL-compatible address lines (A0 and A1).
- What is the settling time for the PGA207UA/1K?
The settling time is 3.5 µs to 0.01% for a 20V step.
- What is the bandwidth of the PGA207UA/1K at different gains?
The bandwidth is 5 MHz at G=1, 1.3 MHz at G=5, and 600 kHz at G=10.
- What is the slew rate of the PGA207UA/1K?
The slew rate is 25 V/µs.
- What is the operating temperature range for the PGA207UA/1K?
The operating temperature range is -40°C to +85°C).
- What type of package is the PGA207UA/1K available in?
The PGA207UA/1K is available in a 16-pin SOL-16 surface-mount package).
- How is the input protection implemented in the PGA207UA/1K?
The inputs are individually protected for voltages up to ±40V, even with the power supplies off).
- What are some common applications for the PGA207UA/1K?
Common applications include multiple-channel data acquisition systems, medical and physiological amplifiers, and PC-controlled analog input boards).
