Overview
The ADA4000-2ARMZ from Analog Devices Inc. is a precision junction field effect transistor (JFET) input operational amplifier. This device is known for its high precision, very low bias current, and low power consumption. It combines high input impedance, low input bias current, wide bandwidth, fast slew rate, and fast settling time, making it ideal for various high-performance applications.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Offset Voltage | VOS | 0.2 | 1.70 | 3.0 | mV |
| Input Bias Current | IB | 5 | 40 | 170 | pA |
| Input Offset Current | IOS | 2 | 40 | 80 | pA |
| Input Voltage Range | IVR | -11 | +15 | V | |
| Common-Mode Rejection Ratio | CMRR | 80 | 100 | dB | |
| Slew Rate | SR | 20 | V/μs | ||
| Gain Bandwidth Product | GBP | 5 | MHz | ||
| Operating Voltage Range | ±4 | ±18 | V | ||
| Operating Temperature Range | -40 | +125 | °C | ||
| Packaging | 8-Lead MSOP |
Key Features
- High slew rate of 20 V/μs and fast settling time.
- Low offset voltage of 1.70 mV maximum.
- Very low bias current of 40 pA maximum.
- Operating voltage range from ±4 V to ±18 V.
- Low voltage noise of 16 nV/√Hz.
- Common-mode voltage includes the positive power supply (+VS).
- Wide bandwidth of 5 MHz and unity gain stability.
- High input impedance and low input bias current.
Applications
- Reference gain/buffers and level shift/driving.
- Active filters and power line monitoring/control.
- Current/voltage sense or monitoring and data acquisition.
- Sample-and-hold circuits and integrators.
- Electronic instruments and automated test equipment (ATE) amplification.
- Instrumentation-quality photodiode amplification.
Q & A
- What is the ADA4000-2ARMZ operational amplifier used for? The ADA4000-2ARMZ is used in various applications such as reference gain/buffers, level shift/driving, active filters, power line monitoring/control, and more.
- What is the slew rate of the ADA4000-2ARMZ? The slew rate is 20 V/μs.
- What is the maximum offset voltage of the ADA4000-2ARMZ? The maximum offset voltage is 1.70 mV.
- What is the input bias current of the ADA4000-2ARMZ? The input bias current is 40 pA maximum.
- What is the operating voltage range of the ADA4000-2ARMZ? The operating voltage range is from ±4 V to ±18 V.
- What is the bandwidth of the ADA4000-2ARMZ? The bandwidth is 5 MHz.
- What is the packaging style of the ADA4000-2ARMZ? The packaging style is 8-Lead MSOP.
- What is the operating temperature range of the ADA4000-2ARMZ? The operating temperature range is from -40°C to +125°C.
- Is the ADA4000-2ARMZ suitable for high-side signal conditioning? Yes, it is suitable due to its common-mode voltage including the positive power supply (+VS).
- What are some of the key features of the ADA4000-2ARMZ? Key features include high slew rate, fast settling time, low offset voltage, very low bias current, and wide bandwidth.
