Overview
The AD8129ARZ from Analog Devices Inc. is a low-cost, high-speed differential receiver amplifier designed for various high-frequency applications. This amplifier is part of the AD8129/AD8130 family, known for its high common-mode rejection ratio (CMRR) and low noise characteristics. The AD8129ARZ is particularly suited for converting differential signals to single-ended signals and can be used in high-speed instrumentation and level shifting applications.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Bandwidth | VOUT ≤ 0.3 V p-p | 175 | 200 | 250 | MHz |
| Slew Rate | VOUT = 2 V p-p, 25% to 75% | 935 | 1070 | 1100 | V/μs |
| Input Offset Voltage | 0.2 | 0.8 | 1.8 | mV | |
| Input Bias Current (+IN, −IN) | ±0.5 | μA | |||
| Common-Mode Rejection Ratio (CMRR) | DC to 100 kHz | 94 | dB | ||
| Supply Voltage Range | +4.5 V to ±12.6 V | V | |||
| Operating Temperature Range | −40°C to +85°C | °C | |||
| Package | 8-Lead SOIC |
Key Features
- High Speed: The AD8129ARZ has a bandwidth of up to 200 MHz and a slew rate of 1070 V/μs, making it suitable for high-frequency applications.
- High CMRR: Offers a high common-mode rejection ratio of 94 dB from DC to 100 kHz, ensuring minimal interference from common-mode signals.
- Low Noise: Features low input voltage noise of 4.5 nV/√Hz, contributing to its high signal integrity.
- Low Distortion: Exhibits low harmonic distortion, with the worst harmonic at −74 dBc at 5 MHz.
- User-Adjustable Gain: Allows for gain adjustment without the need for external components for a gain of +1.
- Power Supply Range: Operates over a wide power supply range of +4.5 V to ±12.6 V.
- Power-Down Feature: Includes a power-down feature to reduce power consumption when not in use.
Applications
- High Speed Differential Line Receivers: Ideal for receiving and amplifying high-speed differential signals.
- Differential-to-Single-Ended Converters: Converts differential signals to single-ended signals efficiently.
- High Speed Instrumentation Amplifiers: Used in high-speed instrumentation applications requiring high CMRR and low noise.
- Level Shifting: Suitable for level shifting applications where signal integrity is crucial.
Q & A
- What is the bandwidth of the AD8129ARZ?
The bandwidth of the AD8129ARZ is up to 200 MHz for VOUT ≤ 0.3 V p-p.
- What is the slew rate of the AD8129ARZ?
The slew rate of the AD8129ARZ is 1070 V/μs for VOUT = 2 V p-p, 25% to 75%.
- What is the common-mode rejection ratio (CMRR) of the AD8129ARZ?
The CMRR of the AD8129ARZ is 94 dB from DC to 100 kHz.
- What is the input voltage noise of the AD8129ARZ?
The input voltage noise of the AD8129ARZ is 4.5 nV/√Hz.
- What is the operating temperature range of the AD8129ARZ?
The operating temperature range of the AD8129ARZ is −40°C to +85°C.
- What is the package type of the AD8129ARZ?
The AD8129ARZ comes in an 8-Lead SOIC package.
- Does the AD8129ARZ have a power-down feature?
Yes, the AD8129ARZ includes a power-down feature to reduce power consumption when not in use.
- What are the typical applications of the AD8129ARZ?
The AD8129ARZ is typically used in high-speed differential line receivers, differential-to-single-ended converters, high-speed instrumentation amplifiers, and level shifting applications.
- What is the supply voltage range of the AD8129ARZ?
The supply voltage range of the AD8129ARZ is +4.5 V to ±12.6 V.
- How does the AD8129ARZ handle harmonic distortion?
The AD8129ARZ exhibits low harmonic distortion, with the worst harmonic at −74 dBc at 5 MHz.
