Overview
The AD8129AR-REEL7 is a differential-to-single-ended amplifier produced by Analog Devices Inc. This component is part of the AD8129 series, designed for high-speed signal transmission and reception. It is particularly suited for applications requiring high common-mode rejection ratio (CMRR) and low noise performance.
The AD8129 is optimized for use in high-speed differential line receivers, differential-to-single-ended converters, and high-speed instrumentation amplifiers. It is also effective in level-shifting applications and can handle both analog and digital video signals as well as high-speed data transmission.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| -3 dB Bandwidth | VOUT ≤ 0.3 V p-p | 175 | 200 | 250 | MHz |
| Slew Rate | VOUT = 2 V p-p | 935 | 1070 | 1100 | V/μs |
| Settling Time | VOUT = 2 V p-p, 0.1% | 20 | - | - | ns |
| Rise and Fall Times | VOUT ≤ 1 V p-p, 10% to 90% | 1.7 | - | - | ns |
| Input Offset Voltage (Vos) | - | - | 200 | μV | |
| Common Mode Rejection Ratio (CMRR) | DC to 100 kHz | 94 | - | - | dB |
| Input Impedance | Differential | 1 | - | - | MΩ |
| Input Common-Mode Range | - | ±10.5 | - | - | V |
| Noise | - | - | 4.5 | nV/√Hz | |
| Power Supply Range | - | +4.5 | - | ±12.6 | V |
| Operating Temperature Range | - | -40 | - | 85 | °C |
| Package | - | - | - | 8-SOIC | - |
Key Features
- High Speed: The AD8129 has a bandwidth of up to 200 MHz and a slew rate of 1060 V/μs at a gain of 10, making it suitable for high-speed applications.
- High CMRR: Excellent common-mode rejection ratio of 94 dB min from DC to 100 kHz, 80 dB min at 2 MHz, and 70 dB at 10 MHz.
- Low Noise: Low noise performance with 4.5 nV/√Hz, which is crucial for maintaining signal integrity in high-speed applications.
- User-Adjustable Gain: The gain can be adjusted using external resistors, allowing for compensation of signal losses in transmission lines.
- High Input Impedance: Differential input impedance of 1 MΩ, which helps in minimizing the loading effect on the input signal.
- Wide Power Supply Range: Operates from a single 4.5 V supply to ±12.6 V, providing flexibility in power supply configurations).
- Power-Down Feature: Allows the amplifier to be powered down to reduce power consumption when not in use).
Applications
- High Speed Differential Line Receivers: Ideal for receiving high-speed signals over twisted-pair cables).
- Differential-to-Single-Ended Converters: Converts differential signals to single-ended signals, useful in various analog and digital applications).
- High Speed Instrumentation Amplifiers: Suitable for high-speed instrumentation due to its high CMRR and low noise characteristics).
- Level Shifting: Can be used for level-shifting applications where signal levels need to be adjusted).
- Analog and Digital Video Signals: Applicable for both analog and digital video signal transmission and reception).
- High Speed Data Transmission: Used in high-speed data transmission systems where signal integrity is critical).
Q & A
- What is the bandwidth of the AD8129?
The AD8129 has a bandwidth of up to 200 MHz for VOUT ≤ 0.3 V p-p).
- What is the slew rate of the AD8129?
The slew rate of the AD8129 is 1060 V/μs at a gain of 10).
- What is the common-mode rejection ratio (CMRR) of the AD8129?
The CMRR of the AD8129 is 94 dB min from DC to 100 kHz, 80 dB min at 2 MHz, and 70 dB at 10 MHz).
- What is the noise performance of the AD8129?
The AD8129 has a low noise performance of 4.5 nV/√Hz).
- How is the gain of the AD8129 adjusted?
The gain of the AD8129 can be adjusted using external resistors).
- What is the input impedance of the AD8129?
The differential input impedance of the AD8129 is 1 MΩ).
- What is the power supply range of the AD8129?
The AD8129 operates from a single 4.5 V supply to ±12.6 V).
- Does the AD8129 have a power-down feature?
Yes, the AD8129 has a power-down feature to reduce power consumption when not in use).
- What are the typical applications of the AD8129?
The AD8129 is typically used in high-speed differential line receivers, differential-to-single-ended converters, high-speed instrumentation amplifiers, level shifting, and high-speed data transmission).
- What is the operating temperature range of the AD8129?
The operating temperature range of the AD8129 is from -40°C to 85°C).
