Overview
The AD8129ARZ-REEL7, produced by Analog Devices Inc., is a low-cost differential receiver amplifier designed for the transmission of high-speed signals over twisted-pair cables. This component is part of the AD8129/AD8130 family and is particularly suited for applications requiring high-speed signal transmission with minimal signal degradation. It is compatible with drivers such as the AD8131 or AD8132 and can handle both analog and digital video signals as well as high-speed data transmission.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Temperature Range | -40 | 85 | °C | ||
| Total Supply Voltage | ±2.25 | ±12.6 | V | ||
| Quiescent Supply Current | 9.9 | 10.6 | mA | ||
| -3 dB Bandwidth (VOUT ≤ 0.3 V p-p) | 175 | 200 | 250 | MHz | |
| Slew Rate (VOUT = 2 V p-p, 25% to 75%) | 935 | 1070 | 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 | 1.4 | ns | ||
| Common-Mode Rejection Ratio (DC to 100 kHz) | VCM = 1.5 V to 3.5 V | 86 | 96 | dB | |
| Input Resistance | PD ≤ +VS – 3 V | 12.5 | kΩ |
Key Features
- High Speed: The AD8129 has a bandwidth of up to 200 MHz and a slew rate of 1070 V/μs, making it suitable for high-speed signal transmission.
- High Common-Mode Rejection Ratio (CMRR): With a CMRR of 94 dB from DC to 100 kHz and 70 dB at 10 MHz, this amplifier provides excellent noise rejection.
- User-Adjustable Gain: The gain can be set by the ratio of two resistor values, allowing for compensation of signal losses in transmission lines.
- High Input Impedance: Regardless of the gain setting, the AD8129 maintains high input impedance, which is beneficial for applications over long cables.
- Low Power Consumption: The quiescent supply current is approximately 10.6 mA, making it energy-efficient.
Applications
- High-Speed Data Transmission: Ideal for transmitting high-speed data over twisted-pair cables.
- Analog and Digital Video Signals: Suitable for handling both analog and digital video signals.
- Long Cable Applications: The high gain version (AD8129) is particularly useful for applications over very long cables where signal attenuation is significant.
Q & A
- What is the operating temperature range of the AD8129ARZ-REEL7?
The operating temperature range is -40°C to +85°C.
- What is the typical bandwidth of the AD8129?
The typical bandwidth is 200 MHz for VOUT ≤ 0.3 V p-p.
- What is the slew rate of the AD8129?
The slew rate is 1070 V/μs for VOUT = 2 V p-p, 25% to 75%.
- What is the common-mode rejection ratio (CMRR) of the AD8129?
The CMRR is 94 dB from DC to 100 kHz and 70 dB at 10 MHz.
- How is the gain of the AD8129 adjusted?
The gain is adjusted by the ratio of two resistor values.
- What is the input resistance of the AD8129?
The input resistance is 12.5 kΩ for PD ≤ +VS – 3 V.
- What are the typical supply voltages for the AD8129?
The total supply voltage range is ±2.25 V to ±12.6 V.
- What is the quiescent supply current of the AD8129?
The quiescent supply current is approximately 10.6 mA.
- Can the AD8129 be used for both analog and digital video signals?
Yes, the AD8129 can handle both analog and digital video signals.
- What type of cables is the AD8129 designed to work with?
The AD8129 is designed to work with twisted-pair cables.
