Overview
The AD8028ARMZ is a high-performance, low distortion, high-speed operational amplifier designed by Analog Devices Inc. This rail-to-rail input/output amplifier is optimized for operation on low supply voltages, making it suitable for a wide range of applications that require high speed and low power consumption. The AD8028ARMZ features a unique input crossover threshold selection via the DISABLE/SELECT pin, which helps in controlling the voltage at which the complementary transistor input pairs switch, thereby reducing crossover distortion. It is available in a compact 10-lead MSOP package and is qualified for automotive applications in certain variants.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Bandwidth (G = +1) | 190 | MHz | ||
| Slew Rate | 100 | V/µs | ||
| Supply Voltage Range | 2.7 | 12 | V | |
| Quiescent Current per Amplifier | 6.0 | 8.5 | mA | |
| Input Noise Voltage | 4.3 | nV/√Hz | ||
| Input Noise Current | 1.6 | pA/√Hz | ||
| Input Offset Voltage | 900 | µV | ||
| Common-Mode Rejection Ratio | 88 | 110 | dB | |
| Output Voltage Swing | 0.07 | 4.93 | V | |
| Short-Circuit Current | 72 | mA | ||
| Operating Temperature Range | -40 | 125 | °C |
Key Features
- High speed with a bandwidth of 190 MHz (G = +1) and a slew rate of 100 V/µs.
- Low distortion with 120 dBc at 1 MHz and 80 dBc at 5 MHz SFDR.
- Low noise with 4.3 nV/√Hz and 1.6 pA/√Hz.
- Low offset voltage of up to 900 µV.
- Low power consumption with a quiescent current of 6.5 mA per amplifier.
- Power-down mode controlled via the DISABLE/SELECT pin.
- No phase reversal when VIN > |VS| + 200 mV.
- Wide supply voltage range from 2.7 V to 12 V.
- Compact packaging in 10-lead MSOP.
- Qualified for automotive applications (AD8028WARMZ-R7 only).
Applications
- Filters
- ADC drivers
- Level shifting
- Buffering
- Professional video
- Low voltage instrumentation
Q & A
- What is the bandwidth of the AD8028ARMZ amplifier?
The bandwidth of the AD8028ARMZ amplifier is 190 MHz at a gain of +1.
- What is the slew rate of the AD8028ARMZ?
The slew rate of the AD8028ARMZ is 100 V/µs.
- What is the supply voltage range for the AD8028ARMZ?
The supply voltage range for the AD8028ARMZ is from 2.7 V to 12 V.
- What is the quiescent current per amplifier for the AD8028ARMZ?
The quiescent current per amplifier for the AD8028ARMZ is typically 6.5 mA.
- Does the AD8028ARMZ have a power-down mode?
Yes, the AD8028ARMZ has a power-down mode controlled via the DISABLE/SELECT pin.
- What is the input noise voltage of the AD8028ARMZ?
The input noise voltage of the AD8028ARMZ is 4.3 nV/√Hz.
- What is the common-mode rejection ratio of the AD8028ARMZ?
The common-mode rejection ratio of the AD8028ARMZ is between 88 dB and 110 dB.
- What are some common applications for the AD8028ARMZ?
Common applications include filters, ADC drivers, level shifting, buffering, professional video, and low voltage instrumentation.
- Is the AD8028ARMZ qualified for automotive applications?
Yes, certain variants like the AD8028WARMZ-R7 are qualified for automotive applications.
- What is the operating temperature range for the AD8028ARMZ?
The operating temperature range for the AD8028ARMZ is from -40°C to +125°C.
