Overview
The AD8202YRZ-R7, manufactured by Analog Devices Inc., is a single-supply difference amplifier designed to amplify and low-pass filter small differential voltages in the presence of large common-mode voltages. This device is particularly useful in applications requiring high common-mode voltage range and excellent AC and DC performance. It operates on a single supply voltage ranging from 3.5 V to 12 V and is qualified for automotive applications, making it robust and reliable for various industrial and automotive uses.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3.5 | - | 12 | V |
| Operating Temperature Range | -40 | - | 125 | °C |
| Common-Mode Voltage Range | -8 | - | 28 | V |
| System Gain | - | 20 | - | V/V |
| Input Offset Voltage | -1 | - | 1 | mV |
| Gain Drift | - | 1 | - | ppm/°C |
| CMRR | - | 80 | - | dB (dc to 10 kHz) |
| Differential Input Impedance | 260 | 325 | 390 | kΩ |
| Common-Mode Input Impedance | 135 | 170 | 205 | kΩ |
| Slew Rate | - | 0.28 | - | V/μs |
| Noise (0.1 Hz to 10 Hz) | - | 10 | - | μV p-p |
| Noise Spectral Density (1 kHz) | - | 275 | - | nV/√Hz |
Key Features
- High common-mode voltage range: -8 V to +28 V at a 5 V supply voltage.
- Operating temperature range: -40°C to +125°C.
- Supply voltage range: 3.5 V to 12 V.
- Low-pass filter capability (1-pole or 2-pole).
- Excellent AC and DC performance with a minimum CMRR of 80 dB from dc to 10 kHz.
- Externally accessible 100 kΩ resistor for low-pass filtering and gain adjustment.
- Qualified for automotive applications.
Applications
- High-side current sensing.
- Motor controls.
- Solenoid controls.
- Power management.
- Low-side current sensing.
- Diagnostic protection.
Q & A
- What is the AD8202YRZ-R7 used for? The AD8202YRZ-R7 is a single-supply difference amplifier used for amplifying and low-pass filtering small differential voltages in the presence of large common-mode voltages.
- What is the operating temperature range of the AD8202YRZ-R7? The operating temperature range is -40°C to +125°C.
- What is the supply voltage range for the AD8202YRZ-R7? The supply voltage range is 3.5 V to 12 V.
- What is the common-mode voltage range of the AD8202YRZ-R7? The common-mode voltage range is -8 V to +28 V at a 5 V supply voltage.
- Does the AD8202YRZ-R7 have low-pass filter capabilities? Yes, it has 1-pole or 2-pole low-pass filter capabilities.
- What is the CMRR of the AD8202YRZ-R7? The minimum CMRR is 80 dB from dc to 10 kHz.
- Is the AD8202YRZ-R7 qualified for automotive applications? Yes, it is qualified for automotive applications.
- What is the slew rate of the AD8202YRZ-R7? The slew rate is 0.28 V/μs.
- What are some common applications of the AD8202YRZ-R7? Common applications include high-side current sensing, motor controls, solenoid controls, power management, and low-side current sensing.
- How can the gain of the AD8202YRZ-R7 be adjusted? The gain can be adjusted using the externally accessible 100 kΩ resistor at the output of the preamplifier.
