Overview
The AD8129ARZ-REEL, produced by Analog Devices Inc., is a low-cost, high-speed differential receiver amplifier. This component is part of the AD8129/AD8130 series, designed for receiving high-speed signals over twisted-pair cables. The AD8129 is particularly suited for applications requiring high gain, typically over very long cables where signal attenuation is significant. It offers user-adjustable gain, high common-mode rejection ratio (CMRR), and low noise, making it ideal for various high-speed signal processing tasks.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| –3 dB Bandwidth (VOUT ≤ 0.3 V p-p) | 175 | 200 | 250 | MHz | |
| –3 dB Bandwidth (VOUT = 2 V p-p) | 170 | 195 | MHz | ||
| Slew Rate (VOUT = 2 V p-p, 25% to 75%) | 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 | |||
| Output Overdrive Recovery | 40 | ns | |||
| Second Harmonic/Third Harmonic (VOUT = 1 V p-p, 5 MHz) | –71/–84 | –79/–86 | dBc | ||
| Power Supply Range | ±2.25 | ±12.6 | V | ||
| Quiescent Supply Current | 9.9 | 10.6 | mA | ||
| Operating Temperature Range | –40 | +85 | °C |
Key Features
- High Speed: The AD8129 offers a bandwidth of up to 200 MHz and a slew rate of 1070 V/μs, making it suitable for high-speed signal processing.
- High CMRR: Excellent common-mode rejection ratio (CMRR) of 94 dB min, dc to 100 kHz, and 70 dB at 10 MHz.
- Low Noise: Low noise figure of 4.5 nV/√Hz, contributing to high signal integrity.
- User-Adjustable Gain: 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, ensuring minimal signal loading.
- Power Supply Range: Operates over a wide power supply range from ±2.25 V to ±12.6 V).
- Power-Down Feature: Includes a power-down mode 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: Can be used to convert differential signals to single-ended signals).
- High Speed Instrumentation Amplifiers: Suitable for high-speed instrumentation applications due to its high CMRR and low noise).
- Level Shifting: Can be used for level shifting in various high-speed signal processing applications).
- Analog or Digital Video Signals: Applicable for both analog and digital video signal transmission).
- High Speed Data Transmission: Suitable for high-speed data transmission over cables).
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 1070 V/μs for VOUT = 2 V p-p).
- What is the CMRR of the AD8129?
The AD8129 has a CMRR of 94 dB min, dc to 100 kHz, and 70 dB at 10 MHz).
- What is the noise figure of the AD8129?
The noise figure of the AD8129 is 4.5 nV/√Hz).
- Can the gain of the AD8129 be adjusted?
Yes, 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 over a power supply range from ±2.25 V to ±12.6 V).
- Does the AD8129 have a power-down feature?
Yes, the AD8129 includes a power-down mode to reduce power consumption when not in use).
- What are some common applications of the AD8129?
The AD8129 is commonly 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 –40°C to +85°C).
