Overview
The AD8132ARM-REEL7, produced by Analog Devices Inc., is a low-cost, high-speed differential amplifier designed for a variety of applications requiring differential or single-ended input to differential output signal processing. This amplifier is a significant advancement over traditional op-amps, particularly for driving differential input ADCs or transmitting high-speed signals over long lines. Manufactured using the next-generation XFCB bipolar process, the AD8132 offers a −3 dB bandwidth of 350 MHz and delivers a differential signal with −99 dBc SFDR at 5 MHz, making it suitable for high-performance applications despite its low cost.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| −3 dB Bandwidth | ΔVOCM = 600 mV p-p | 210 | - | - | MHz |
| Slew Rate | ΔVOCM = 1.5 V to 3.5 V | - | 340 | - | V/μs |
| Input Voltage Noise (RTI) | f = 0.1 MHz to 100 MHz | - | 12 | - | nV/√Hz |
| Input Voltage Range | - | 1.0 | - | 3.7 | V |
| Input Resistance | - | - | 30 kΩ | - | - |
| Input Offset Voltage | VOS, cm = VOUT, cm; VDIN+ = VDIN− = VOCM = 2.5 V | ±5 | - | ±11 mV | mV |
| Input Bias Current | - | - | 0.5 μA | - | - |
| Power Supply Range | - | 2.7 | - | ±5.5 V | V |
| Quiescent Current | VDIN+ = VDIN− = VOCM = 0 V | - | 7.25 mA | - | mA |
| Operating Temperature Range | - | −40 | - | +125 °C | °C |
Key Features
- High-Speed Performance: The AD8132 has a −3 dB bandwidth of 350 MHz and a slew rate of 340 V/μs, making it suitable for high-speed signal processing.
- Differential Output: It can convert single-ended inputs to differential outputs, which is beneficial for reducing ground noise and improving signal integrity.
- Adjustable Common-Mode Level: The common-mode level of the differential output is adjustable via the VOCM pin, allowing for easy level shifting of input signals.
- Low Power Consumption: The amplifier operates with a quiescent current of 7.25 mA, making it energy-efficient.
- Automotive Grade: The AD8132W version is AEC-Q100 qualified for automotive applications, ensuring reliability in harsh environments.
- Flexible Packaging: Available in 8-lead SOIC and 8-lead MSOP packages, offering versatility in design and implementation.
Applications
- Differential ADC Drivers: Ideal for driving differential input ADCs, preserving low frequency and DC information without the need for a transformer.
- Differential Gain and Filtering: Used for differential signal processing, including gain and filtering, to simplify the conversion between differential and single-ended components.
- Video Line Drivers: Suitable for driving analog or digital video signals over twisted pair or coaxial cables with minimal line attenuation.
- Automotive Driver Assistance and Infotainment: The AD8132W version is used in automotive systems due to its AEC-Q100 qualification and high reliability.
- High-Speed Data Transmission: Used for transmitting high-speed signals over long lines, making it suitable for various high-speed data transmission applications.
Q & A
- What is the primary function of the AD8132ARM-REEL7?
The AD8132ARM-REEL7 is a low-cost, high-speed differential amplifier that converts single-ended inputs to differential outputs, suitable for driving differential input ADCs and transmitting high-speed signals over long lines.
- What is the bandwidth of the AD8132?
The AD8132 has a −3 dB bandwidth of 350 MHz.
- How does the AD8132 handle common-mode level adjustment?
The common-mode level of the differential output is adjustable by applying a voltage on the VOCM pin.
- What are the power supply requirements for the AD8132?
The AD8132 operates within a power supply range of +2.7 V to ±5.5 V.
- Is the AD8132 suitable for automotive applications?
Yes, the AD8132W version is AEC-Q100 qualified for automotive applications.
- What are the typical applications of the AD8132?
The AD8132 is used in differential ADC drivers, video line drivers, automotive driver assistance and infotainment, and high-speed data transmission.
- What is the quiescent current of the AD8132?
The quiescent current of the AD8132 is 7.25 mA.
- What are the available package options for the AD8132?
The AD8132 is available in 8-lead SOIC and 8-lead MSOP packages.
- How does the AD8132 reduce radiated EMI?
The AD8132 has a unique internal feedback feature that provides output gain and phase matching, suppressing harmonics and reducing radiated EMI.
- What is the operating temperature range of the AD8132?
The operating temperature range of the AD8132 is −40°C to +125°C.
