PGA870
Overview
The PGA870 is a wideband programmable-gain amplifier (PGA) for high-speed signal chain and data acquisition systems. The PGA870 has been optimized to provide high bandwidth, low distortion, and low noise, making it ideally suited as a 14-bit analog-to-digital converter (ADC) driver for wireless base station signal chain applications.
- 23 Wideband +5-V Operation: 650-MHz Bandwidth
- Low Impedance, Voltage Mode Output
- Wide Gain Range: -11.5 dB to +20 dB
- Precise 0.5-dB Gain Steps Step-to-Step Gain Error = ±0.03 dB
- HD2: -93 dBc at 100 MHz
- HD3: -88 dBc at 100 MHz
- IMD3: -98 dBc at 100 MHz, -95 dBc at 200 MHz
- OIP3: +47 dBm at 100 MHz; Exceeds +45 dBm for Frequencies to 300 MHz
- Flexible Gain Control Interface: - Supports latched and unlatched options - Gain may be set in power-down state - Fast setup and hold times: 2.5 ns
- Low Disable Current: 2 mA
