Overview
The ADA4091-2ARZ-RL is a dual, micropower, single-supply operational amplifier produced by Analog Devices Inc. This amplifier is characterized by its 1.2 MHz bandwidth and features rail-to-rail inputs and outputs. It is designed to operate from a single supply of +3V to +30V, as well as from dual supplies of ±1.5V to ±15V. The ADA4091-2ARZ-RL includes a unique input stage that provides overvoltage protection (OVP), allowing the input voltage to safely exceed either supply rail without phase reversal or latch-up.
Key Specifications
| Parameter | Typical Value | Units |
|---|---|---|
| Bandwidth (GBP) | 1.2 MHz | |
| Supply Current per Amplifier (Iq/Amp) | 165 µA | |
| Slew Rate | 0.46 V/µs | (RL = 100 kΩ, CL = 30 pF) |
| Offset Voltage (Vos) | 250 µV (max) | |
| Input Bias Current (IB) | -44 nA (typ) | |
| Common-Mode Rejection Ratio (CMRR) | 100 dB (typ) | |
| Voltage Noise (0.1 Hz to 10 Hz) | 0.8 µV p-p (typ) | |
| Operating Temperature Range | -40°C to +125°C | |
| Package Style | 8-Lead Standard Small Outline Package (SOIC) |
Key Features
- Single-supply operation: +3V to +30V and dual-supply operation: ±1.5V to ±15V
- Rail-to-rail input and output swing
- Low supply current: 165 µA per amplifier
- Wide bandwidth: 1.2 MHz
- Slew rate: 0.46 V/µs (RL = 100 kΩ, CL = 30 pF)
- Low offset voltage: 250 µV maximum
- Overvoltage protection (OVP) allowing input voltage to exceed supply rails safely
- Common-mode rejection ratio: 100 dB typical
- Voltage noise: 0.8 µV p-p (0.1 Hz to 10 Hz)
Applications
- Industrial process control
- Battery-powered instrumentation
- Power supply control and protection
- Telecommunications
- Remote sensors
- Low voltage strain gauge amplifiers
- DAC output amplifiers
- Portable telecommunications equipment
- Interface for transducers with wide output ranges
- Sensors requiring rail-to-rail input amplifiers, such as Hall effect and piezo-sensors
Q & A
- What is the bandwidth of the ADA4091-2ARZ-RL operational amplifier?
The bandwidth of the ADA4091-2ARZ-RL is 1.2 MHz.
- What is the typical supply current per amplifier for the ADA4091-2ARZ-RL?
The typical supply current per amplifier is 165 µA.
- What is the slew rate of the ADA4091-2ARZ-RL?
The slew rate is 0.46 V/µs (RL = 100 kΩ, CL = 30 pF).
- What is the maximum offset voltage for the ADA4091-2ARZ-RL?
The maximum offset voltage is 250 µV.
- What is the common-mode rejection ratio (CMRR) of the ADA4091-2ARZ-RL?
The CMRR is 100 dB typical.
- What is the operating temperature range of the ADA4091-2ARZ-RL?
The operating temperature range is -40°C to +125°C.
- What type of package does the ADA4091-2ARZ-RL come in?
The ADA4091-2ARZ-RL comes in an 8-Lead Standard Small Outline Package (SOIC).
- Does the ADA4091-2ARZ-RL have overvoltage protection?
Yes, the ADA4091-2ARZ-RL features overvoltage protection (OVP) that allows the input voltage to safely exceed either supply rail.
- What are some common applications for the ADA4091-2ARZ-RL?
Common applications include industrial process control, battery-powered instrumentation, power supply control and protection, telecommunications, remote sensors, and low voltage strain gauge amplifiers.
- Is the ADA4091-2ARZ-RL RoHS compliant?
Yes, the ADA4091-2ARZ-RL is RoHS compliant.
