Overview
The VCA810IDR is a high-gain, adjustable range, wideband, voltage-controlled amplifier produced by Texas Instruments. This device is DC-coupled and provides a continuously variable gain control, making it suitable for a variety of applications requiring precise gain adjustment. The VCA810IDR operates from ±5-V supplies and features a differential input to single-ended output conversion. It is packaged in an 8-pin SOIC (D) package, making it compact and versatile for different system designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (D) | - |
| Pins | 8 | - |
| Operating Temperature Range | -40 to 85 | °C |
| Gain Adjust Range | ±40 dB | - |
| Input Noise Voltage | 2.4 nV/√Hz | - |
| Constant Bandwidth vs Gain | 35 MHz | - |
| Gain Control Bandwidth | 25 MHz | - |
| Output DC Error | < ±40 mV | - |
| Output Current | ±60 mA | - |
| Supply Current | 24.8 mA (max at 40°C to 85°C) | - |
| Supply Voltage | ±4 to ±5.5 V | - |
Key Features
- High Gain Adjust Range: ±40 dB
- Differential Input, Single-Ended Output
- Low Input Noise Voltage: 2.4 nV/√Hz
- Constant Bandwidth vs Gain: 35 MHz
- High dB/V Gain Linearity: ±0.3 dB
- Gain Control Bandwidth: 25 MHz
- Low Output DC Error: < ±40 mV
- High Output Current: ±60 mA
- Low Supply Current: 24.8 mA (maximum for 40°C to 85°C temperature range)
- Excellent common-mode rejection and common-mode input range
- Minimal change in group delay over gain setting, retaining excellent pulse edge information
Applications
- Optical Receiver Time Gain Control
- Sonar Systems
- Voltage-Tunable Active Filters
- Log Amplifiers
- Pulse Amplitude Compensation
- AGC Receivers with RSSI (Received Signal Strength Indicator)
- Improved Replacement for VCA610
Q & A
- What is the gain adjust range of the VCA810IDR?
The VCA810IDR has a gain adjust range of ±40 dB.
- What is the input noise voltage of the VCA810IDR?
The input noise voltage is 2.4 nV/√Hz.
- What is the constant bandwidth vs gain of the VCA810IDR?
The constant bandwidth vs gain is 35 MHz.
- What is the gain control bandwidth of the VCA810IDR?
The gain control bandwidth is 25 MHz.
- What is the output DC error of the VCA810IDR?
The output DC error is less than ±40 mV.
- What is the maximum output current of the VCA810IDR?
The maximum output current is ±60 mA.
- What is the typical supply current of the VCA810IDR?
The typical supply current is 24.8 mA (maximum for 40°C to 85°C temperature range).
- What are the common applications of the VCA810IDR?
Common applications include optical receiver time gain control, sonar systems, voltage-tunable active filters, log amplifiers, pulse amplitude compensation, and AGC receivers with RSSI.
- What package type is the VCA810IDR available in?
The VCA810IDR is available in an 8-pin SOIC (D) package.
- What is the operating temperature range of the VCA810IDR?
The operating temperature range is -40°C to 85°C.
