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 (2)
The EVAL-ADA4523-1BRMZ 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-ADA4523-1BRMZ 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-ADA4523-1BRMZ to easily use the shutdown function.
The EVAL-ADA4523-1BRMZ 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 the user guide when using the EVAL-ADA4523-1BRMZ.
The AD-ACEVSECRDSET-SL is a complete Type 2 EVSE 3.6 kW charging cable solution, providing a reference design intended for evaluation and prototyping of electric vehicle (EV) charging systems.
The system includes a 3-channel isolated sigma-delta (Σ-Δ) ADC for voltage and current measurement on the single-phase power input and measurement of the relay voltage for solder contacts detection and relay state of health. Safe operation is enabled by the inclusion of a 6 mA DC / 30 mA rms RCD. Detection of overvoltage, undervoltage, overcurrent, overtemperature and EV diode presence is also available.
A MAX32655 low-power, ARM® Cortex®-M4 Microcontroller implements the logic for system control and communication with the EV over the control pilot interface. A programming and debugging interface are included. The MAX32655 Bluetooth 5.2 interface enables connectivity to external devices.
The design is accompanied by an open-source software stack and reference applications, enabling custom software development to start from a proven implementation validated to meet the applicable standards. An external programmer such as the MAX32625PICO MAXDAP Programming Adapter, or any other similar programmer supporting the SWD interface, is required to enable firmware programming and debug.
The system is designed to comply with the IEC61851 and IEC62752 standards.
- EV charging
Features & Benefits
- Complete reference design for Type 2 EVSE Cordset (IC-CPD)
- Power level from 2.3 kW up to 3.6 kW
- Designed to comply with the applicable standards - IEC61851, IEC62752
- Incorporates a 6 mA DC/30 mA rms RCD and a control pilot circuit
- Stuck relay detection and relay state of health
- Overtemperature detection
- Integrated isolation
- Reduced component count for cost optimization
- Bluetooth 5.2 interface for connectivity to external devices
- Open-source software stack to enable custom firmware development
Documentation & Resources
Tools & Simulations
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Models for the following parts are available in LTspice:
Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.
Use Photodiode Wizard to design a transimpedance amplifier circuit to interface with a photodiode. Select a photodiode from the library included in the tool, or enter custom photodiode specifications. Quickly observe tradeoffs between Bandwidth, Peaking (Q), and ENOB/SNR. Modify circuit parameters, and immediately see results in plots for pulse response, frequency response, and noise gain.
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
|Part Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|ADA4523-1BCPZ||Material Declaration||Reliability Data||8-Lead LFCSP (3mm x 3mm x 0.75mm)|
|ADA4523-1BCPZ-RL7||Material Declaration||Reliability Data||8-Lead LFCSP (3mm x 3mm x 0.75mm)|
|ADA4523-1BRMZ||Material Declaration||Reliability Data||8-Lead MSOP|
|ADA4523-1BRMZ-RL7||Material Declaration||Reliability Data||8-Lead MSOP|
|ADA4523-1BRZ||Material Declaration||Reliability Data||8-Lead SOIC|
|ADA4523-1BRZ-RL7||Material Declaration||Reliability Data||8-Lead SOIC|
|Wafer Fabrication Data|
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Sample & Buy
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.