Overview
The AD8370AREZ-RL7, produced by Analog Devices Inc., is a high-performance, digitally controlled variable gain amplifier (VGA). This component is designed for use at intermediate frequencies (IF) within communication infrastructure equipment. It offers precision gain control, high third-order intercept point (IP3), and a low noise figure, making it an ideal choice for modern receiver designs. The AD8370 operates on a single 3 V to 5 V supply and is packaged in a 16-lead thin shrunk small outline (TSSOP) package, ensuring space efficiency and reliability over a temperature range of –40°C to +85°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain Range | −11 dB to +17 dB (Low Gain Mode), 6 dB to 34 dB (High Gain Mode) | dB |
| Input Resistance | 200 Ω (Differential) | Ω |
| Output Resistance | 100 Ω (Differential) | Ω |
| Noise Figure | 7.2 dB | dB |
| Output IP3 | 35 dBm | dBm |
| Output 1 dB Compression Point | 17 dBm | dBm |
| Bandwidth | −3 dB bandwidth of 750 MHz | MHz |
| Supply Voltage | 3 V to 5 V | V |
| Operating Temperature Range | −40°C to +85°C | °C |
| Package Type | 16-lead TSSOP_EP |
Key Features
- Precision gain control with two gain ranges: low gain mode and high gain mode.
- High IP3 of 35 dBm and low noise figure of 7.2 dB.
- Wide bandwidth with a −3 dB bandwidth of 750 MHz.
- Single 3 V to 5 V supply operation.
- Power-down feature with low power consumption (< 4 mA) and excellent input to output isolation.
- Serial 8-bit digital interface for gain control.
- Wide input dynamic range and differential input and output stages.
Applications
- Differential ADC drivers.
- IF sampling receivers.
- RF/IF gain stages.
- Cable and video applications.
- SAW filter interfacing.
- Single-ended-to-differential conversion.
- Digital receiver AGC circuits for GSM, CDMA2000, and W-CDMA cellular base stations.
Q & A
- What is the gain range of the AD8370AREZ-RL7?
The AD8370AREZ-RL7 has a gain range of −11 dB to +17 dB in low gain mode and 6 dB to 34 dB in high gain mode.
- What is the noise figure of the AD8370AREZ-RL7?
The noise figure is 7.2 dB).
- What is the output IP3 of the AD8370AREZ-RL7?
The output IP3 is 35 dBm).
- What is the bandwidth of the AD8370AREZ-RL7?
The −3 dB bandwidth is 750 MHz).
- What is the supply voltage range for the AD8370AREZ-RL7?
The supply voltage range is 3 V to 5 V).
- What is the operating temperature range for the AD8370AREZ-RL7?
The operating temperature range is −40°C to +85°C).
- What package type is the AD8370AREZ-RL7 available in?
The AD8370AREZ-RL7 is available in a 16-lead TSSOP_EP package).
- Does the AD8370AREZ-RL7 have a power-down feature?
Yes, the AD8370AREZ-RL7 has a power-down feature with low power consumption (< 4 mA) and excellent input to output isolation).
- What is the input resistance of the AD8370AREZ-RL7?
The input resistance is 200 Ω (differential)).
- What are some common applications of the AD8370AREZ-RL7?
Common applications include differential ADC drivers, IF sampling receivers, RF/IF gain stages, cable and video applications, SAW filter interfacing, and single-ended-to-differential conversion).
