AD823ARZ - Dual 16MHz JFET Op Amp | Analog Devices
MPN: AD823ARZ β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.77 | $6.77 |
| 10 | $6.1 | $61.00 |
| 100 | $5.42 | $542.00 |
| 500 | $4.88 | $2,440.00 |
| 1,000 | $4.34 | $4,340.00 |
Drop-in alternatives for AD823ARZ β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
AD823AARZ
β Drop-Inπ Reference alternative (not in catalog)
AD8622ARZ
β Drop-Inπ Reference alternative (not in catalog)
AD8642ARZ
β Drop-Inπ Reference alternative (not in catalog)
TLE2072CDR
β Drop-Inπ Reference alternative (not in catalog)
AD823ARZ Maximum Ratings & Electrical Characteristics
| Amplifier Type | J-FET |
| Number of Circuits | 2 |
| Output Type | Rail-to-Rail |
| Slew Rate | 25 V/Β΅s |
| Gain Bandwidth Product | 16 MHz |
| Current - Input Bias | 10 pA |
| Voltage - Input Offset | 0.5 mV |
| Current - Supply | 2.6 mA (x2 channels) |
| Current - Output / Channel | 15 mA |
| Voltage - Supply, Single/Dual (Β±) | 3 V ~ 36 V, Β±1.5 V ~ Β±18 V |
| Operating Temperature | -40Β°C ~ +85Β°C |
| Package / Case | 8-SOIC |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Capacitive Load Drive | 500 pF, G = +1 |
AD823ARZ Pin Configuration
| Pin 1 | OUT A β Output of amplifier A |
| Pin 2 | -IN A β Inverting input of amplifier A |
| Pin 3 | +IN A β Non-inverting input of amplifier A |
| Pin 4 | V- β Negative supply or ground |
| Pin 5 | +IN B β Non-inverting input of amplifier B |
| Pin 6 | -IN B β Inverting input of amplifier B |
| Pin 7 | OUT B β Output of amplifier B |
| Pin 8 | V+ β Positive supply |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
AD823ARZ is suitable for 6 applications: Photodiode Amplifier, Active Filters, Data Acquisition Systems, Audio Preamplifiers, Sensor Interfaces, Test and Measurement Equipment.
Photodiode Amplifier
The AD823ARZ's low input bias current (10 pA) and high bandwidth (16 MHz) make it ideal for transimpedance amplifiers in photodiode applications. Its JFET input minimizes leakage current, ensuring accurate detection of small photocurrents. The rail-to-rail output maximizes dynamic range, allowing the amplifier to interface directly with ADCs. In a typical circuit, the photodiode is connected between the inverting input and ground, with a feedback resistor setting the transimpedance gain. The low noise and high slew rate preserve fast optical pulses, making it suitable for optical communication and sensing systems.
Recommended
Active Filters
The AD823ARZ's 16 MHz bandwidth and 25 V/Β΅s slew rate enable high-frequency active filters with low distortion. Its dual configuration allows implementing second-order filters in a single package, saving space. The rail-to-rail output ensures maximum signal swing, which is critical in filters operating from low supply voltages. The low input bias current reduces DC offset errors in high-impedance filter networks. Typical applications include anti-aliasing filters in data acquisition systems and audio crossover networks. The wide supply range supports both single-supply and dual-supply filter designs.
Recommended
Data Acquisition Systems
In data acquisition systems, the AD823ARZ serves as a buffer or gain stage before ADCs. Its high input impedance and low bias current prevent loading of sensors, while the rail-to-rail output allows full-scale ADC input range. The 16 MHz bandwidth supports high-speed sampling, and the low distortion preserves signal integrity. The dual configuration allows processing two channels simultaneously, reducing component count. The wide supply range accommodates various system rails, and the 500 pF capacitive load drive ensures stability when driving ADC input capacitors. This makes the AD823ARZ suitable for industrial and instrumentation DAQ systems.
Recommended
Audio Preamplifiers
The AD823ARZ's low noise and high slew rate make it suitable for audio preamplifiers. Its JFET input provides high input impedance, ideal for interfacing with high-impedance sources like electric guitars and condenser microphones. The rail-to-rail output allows maximum headroom in low-voltage audio systems. The 16 MHz bandwidth ensures transparent reproduction of audio frequencies, while the low distortion preserves sound quality. The dual configuration allows stereo preamplifier designs in a single package. The wide supply range supports both battery-powered and line-powered audio equipment.
Recommended
Sensor Interfaces
The AD823ARZ is ideal for sensor interfaces due to its low input bias current and high input impedance. It can amplify signals from high-impedance sensors such as pH probes, piezoelectric sensors, and gas sensors without loading them. The rail-to-rail output allows direct connection to ADCs or microcontrollers. The wide supply range supports both 3.3V and 5V systems, and the low quiescent current (2.6 mA per amp) is suitable for battery-powered sensors. The 16 MHz bandwidth enables fast response to sensor changes, making it suitable for real-time monitoring applications.
Recommended
Test and Measurement Equipment
In test and measurement equipment, the AD823ARZ provides precision signal conditioning with its low offset voltage and high bandwidth. It can be used in oscilloscope front-ends, signal generators, and spectrum analyzers. The rail-to-rail output ensures accurate representation of signals across the full supply range. The high slew rate preserves fast edges in digital signals, while the low distortion maintains signal fidelity. The dual configuration allows simultaneous processing of multiple channels, which is useful in multi-channel instruments. The wide supply range and robust output drive make it suitable for bench-top and portable test equipment.
Recommended
Recommended Products Summary
Engineering reference data for AD823ARZ β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD823AARZ | AD8622ARZ | AD8642ARZ | TLE2072CDR |
|---|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Number of Channels | 2 | 2 | 2 | 2 | 2 |
| Gain Bandwidth Product | 16 MHz | 16 MHz | 10 MHz | 5.5 MHz | 10 MHz |
| Slew Rate | 25 V/Β΅s | 25 V/Β΅s | 5 V/Β΅s | 3 V/Β΅s | 15 V/Β΅s |
| Input Bias Current | 10 pA | 10 pA | 1 pA | 1 pA | 20 pA |
| Supply Voltage Range | 3 V to 36 V | 3 V to 36 V | 5 V to 30 V | 2.7 V to 12 V | 4.5 V to 38 V |
| Output Current | 15 mA | 15 mA | 30 mA | 30 mA | 30 mA |
Key Differentiators
- Higher bandwidth than AD8622ARZ (vs AD8622ARZ)
- Wider supply range than AD8642ARZ (vs AD8642ARZ)
- Lower input bias current than TLE2072CDR (vs TLE2072CDR)
Design Notes
Decouple the power supply pins with 0.1 Β΅F ceramic capacitors placed as close to the V+ and V- pins as possible. For single-supply operation, bias the inputs to mid-supply to maximize headroom. The AD823ARZ can operate from 3 V to 36 V single supply, but ensure the input common-mode range is not exceeded.
For optimal performance, use a ground plane and keep traces short, especially for high-impedance inputs. The JFET input has very low bias current, so minimize leakage paths by cleaning the PCB and using guard rings around the input pins if necessary. Place feedback resistors close to the inverting input to reduce parasitic capacitance.
Do not exceed the absolute maximum supply voltage of 36 V or apply input voltages beyond the specified range. The input voltage range extends below ground in single-supply operation, but do not exceed the negative rail. Also, ensure the capacitive load does not exceed 500 pF at unity gain to avoid instability.
Compliance Information
RoHS compliant per distributor listings. No AEC-Q100 qualification indicated for this part.
