Overview
The AD8132ARZ-R7, produced by Analog Devices Inc., is a low-cost, high-speed differential amplifier designed to convert single-ended or differential input signals to differential output signals. It is manufactured using the next-generation XFCB bipolar process, offering significant advancements over traditional op-amps for driving differential input ADCs and transmitting high-speed signals over long lines. The AD8132ARZ-R7 features a unique internal feedback mechanism that ensures output gain and phase matching, suppressing harmonics and reducing radiated EMI. This amplifier is particularly useful for applications requiring high-speed signal transmission with minimal distortion and noise.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 1 | |
| -3 dB Bandwidth | 350 | MHz |
| Gain Set | Resistor | |
| Supply Current (typ) | 12 | mA |
| Operating Temperature Range | -40 to 125 | °C |
| Slew Rate (typ) | 1.2k | V/μs |
| Supply Voltage Range | 2.7 to ±5.5 | V |
| Input Offset Voltage | ±1.0 to ±6 | mV |
| Input Bias Current | 3 to 8 | μA |
| Input Resistance (Differential) | 12 | MΩ |
| Input Capacitance | 1 | pF |
| Common-Mode Rejection Ratio (CMRR) | -60 to -70 | dB |
Key Features
- High-Speed Operation: The AD8132ARZ-R7 has a -3 dB bandwidth of 350 MHz and a slew rate of 1.2 kV/μs, making it suitable for high-speed signal transmission.
- Low Power Consumption: It operates with a supply current of 12 mA, making it energy-efficient.
- Adjustable Common-Mode Level: The common-mode level of the differential output can be adjusted using the VOCM pin, facilitating level shifting for single-supply ADCs.
- Internal Feedback Mechanism: This feature ensures output gain and phase matching, reducing harmonics and radiated EMI.
- Fast Overload Recovery: Preserves sampling accuracy by quickly recovering from overload conditions.
- Differential Signal Processing: Reduces the effects of ground noise, simplifying the conversion between differential and single-ended components.
- Automotive Grade Version: The AD8132W is qualified for 125°C operation per the AEC-Q100 standard.
Applications
- Differential ADC Drivers: Ideal for driving differential input ADCs, preserving low frequency and DC information.
- Video Line Drivers: Suitable for both analog and digital video signals.
- High-Speed Data Transmission: Used for transmitting high-speed signals over twisted pair or coaxial cables with minimal line attenuation.
- Automotive Driver Assistance and Infotainment: Qualified for automotive applications, including driver assistance systems and infotainment systems.
- Differential Gain and Filtering: Can be used throughout the signal chain for differential signal processing, including gain and filtering.
Q & A
- What is the -3 dB bandwidth of the AD8132ARZ-R7?
The -3 dB bandwidth of the AD8132ARZ-R7 is 350 MHz.
- What is the typical supply current of the AD8132ARZ-R7?
The typical supply current is 12 mA.
- What is the operating temperature range of the AD8132ARZ-R7?
The operating temperature range is -40°C to 125°C.
- How can the common-mode level of the differential output be adjusted?
The common-mode level can be adjusted by applying a voltage on the VOCM pin.
- Is the AD8132ARZ-R7 suitable for automotive applications?
Yes, the AD8132W version is qualified for 125°C operation per the AEC-Q100 standard, making it suitable for automotive applications.
- What types of cables can the AD8132ARZ-R7 drive with minimal line attenuation?
The AD8132ARZ-R7 can drive Category 3 or Category 5 twisted pair or coaxial cables with minimal line attenuation.
- What is the input offset voltage range of the AD8132ARZ-R7?
The input offset voltage range is ±1.0 to ±6 mV.
- What is the common-mode rejection ratio (CMRR) of the AD8132ARZ-R7?
The CMRR is -60 to -70 dB.
- Is the AD8132ARZ-R7 RoHS compliant?
Yes, the AD8132ARZ-R7 is RoHS compliant.
- What are the available package types for the AD8132ARZ-R7?
The AD8132ARZ-R7 is available in 8-lead SOIC and 8-lead MSOP packages.
