Features and Benefits
- Supply voltage range: 4.5 V to 36 V
- Offset voltage: ±4 µV maximum at 5 V
- Offset voltage drift: 0.01 µV/°C maximum at 5 V
- Input noise
- Voltage: 88 nV p-p from 0.1 Hz to 10 Hz typical
- Spectral density voltage: 4.2 nV/√Hz typical at 1 kHz
- Rail-to-rail output
- Unity-gain stable
- GBP: 5 MHz typical
- Slew rate: 1.8 V/µs typical falling
- PSRR: 168 dB typical at VS = 4.5 V to 36 V
- Open-loop voltage gain: 160 dB typical at VOUT = −14.75 V to +14.75 V, RL = 10 kΩ, VS = 30 V
- CMRR: 160 dB typical at VCM = −15.1 V to +13.5 V,VS= 30V
- Integrated EMI filters
- Shutdown mode
- Ground sense
- Available in 8-lead SOIC, 8-lead MSOP, and 8-lead LFCSP
The ADA4523-1 is a high voltage, low noise, zero drift op amp that offers precision dc performance over a wide supply range of 4.5 V to 36 V. Offset voltage and 1/f noise are suppressed, allowing this op amp to achieve a maximum offset voltage of ±4 µV and a 0.1 Hz to 10 Hz input noise voltage of 88 nV p-p typical.The self calibrating circuitry of the ADA4523-1 results in low offset voltage drift with temperature (0.01 µV/°C maximum) and zero drift over time. Additionally, the ADA4523-1 uses on-chip filtering to achieve high immunity to electromagnetic interference (EMI).
Wide supply range, combined with low noise, low offset, 168 dB power supply rejection ratio (PSRR), and 160 dB common-mode rejection ratio (CMRR), make the ADA4523-1 well suited for high dynamic range test, measurement, and instrumentation systems.
- High resolution data acquisition
- Reference buffering
- Test and measurement
- Electronic scales
- Thermocouple amplifiers
- Strain gages
- Low-side current sense
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
The EVAL-ADA4523-1ARMZ allows the evaluation of the ADA4523-1 single-channel, 8-lead, micro small outline package (MSOP) operational amplifier. The ADA4523-1 in this evaluation board is configured as a noninverting amplifier with a gain of 101. The ADA4523-1 has a typical gain bandwidth product of 4 MHz. When using a gain of 101, the useable bandwidth of the ADA4523-1 is limited to approximately 39.6 kHz. This limitation in bandwidth acts as a low-pass filter that rejects the artifacts generated by the 330 kHz internal chopping frequency of the ADA4523-1.
The EVAL-ADA4523-1 layout lessens the thermocouple effects of the trace and components that introduce offset voltages greater than the maximum offset voltage of the ADA4523-1 by carefully constructing the nodes connected to the inverting and noninverting inputs. The ADA4523-1 also features a shutdown mode for low power applications. Test point provisions for the SD and SD_COM pins are placed on the EVAL-ADA4523- 1ARMZ to easily use the shutdown function.
The EVAL-ADA4523-1ARMZ mainly consists of 0805 sized resistors and capacitors to ensure simple installation except for the bypass capacitors. The 10 µF bypass capacitors (C1 and C4) have a 2220 package size to accommodate a higher voltage rating because the ADA4523-1 has a maximum supply of 55 V. For full details on the ADA4523-1, see the ADA4523-1 data sheet, which must be consulted in conjunction with this user guide when using the EVAL-ADA4523-1ARMZ.
- Dual output power supply
- Signal generator
- 3 banana jack to grabber cables
- 2 SMA to BNC male cables
Tools & Simulations
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Sample & Buy
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