ADA4528-1

PRODUCTION

Precision, Ultralow Noise, RRIO, Zero-Drift Single Op Amp

Part Models
6
1ku List Price
Starting From $1.21
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Part Details

  • Low offset voltage: 2.5 μV maximum
  • Low offset voltage drift: 0.015 μV/°C maximum
  • Low noise
    • 5.6 nV/√Hz at f = 1 kHz, AV = +100
    • 97 nV p-p at f = 0.1 Hz to 10 Hz, AV = +100
  • Open-loop gain: 130 dB minimum
  • CMRR: 135 dB minimum
  • PSRR: 130 dB minimum
  • Unity-gain crossover: 4 MHz
  • Gain bandwidth product: 3 MHz at AV = +100
  • −3 dB closed-loop bandwidth: 6.2 MHz
  • Single-supply operation: 2.2 V to 5.5 V
  • Dual-supply operation: ±1.1 V to ±2.75 V
  • Rail-to-rail input and output
  • Unity-gain stable
ADA4528-1
Precision, Ultralow Noise, RRIO, Zero-Drift Single Op Amp
ADA4528-1 Pin Configuration ADA4528-1 Pin Configuration ADA4528-1 Pin Configuration ADA4528-1 Pin Configuration
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Documentation

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Tools & Simulations

LTspice 1


Models for the following parts are available in LTspice:

  • ADA4528-1
  • ADA4528-2

Analog Photodiode Wizard

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.

Open Tool

Analog Filter Wizard

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.

Open Tool

Signal Chain Designer - BETA

Signal Chain Designer is a web-based tool designed to create and simulate complex precision signal chains. See your circuit’s performance before you commit to your PCB: transfer function, noise, power consumption, input range, and DC error. Quickly experiment with different parts and architectures. Signal chains can be exported to LTspice for further analysis.

Open Tool

SPICE Model 1

LTspice

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.


Evaluation Kits

eval board
EVAL-CN0216-ARDZ

Arduino Compatible High Gain Weigh Scale Design (CN0216)

Features and Benefits

  • Form Factor Compatible with Arduino
  • Usable for 4- or 6- wire sensors
  • High gain of 400, for wide bridge sensor ranges
  • Low power, single supply operation

Product Details

CN-0216 is a precision weigh scale signal conditioning system. It uses the AD7791, a low power buffered 24-bit sigma-delta ADC along with dual external ADA4528-1 zero-drift amplifiers. This solution allows for high dc gain with a single supply.

This circuit allows great flexibility in designing a custom low-level signal conditioning front end that gives the user the ability to easily optimize the overall transfer function of the combined sensor-amplifier-converter circuit.

EVAL-OPAMP-1

EVAL-OPAMP-1 Evaluation Board

Product Details

The Universal Precision Op Amp Evaluation Boards have been designed and optimized for many circuit configurations allowing the users to best suit their applications. These boards are all RoHs Compliant. See references below on what board to order by lead count and package.

  • EVAL-PRAOPAMP-1KSZ (Single 5-Lead SC70) KS-5
  • EVAL-PRAOPAMP-1RJZ (Single 5-Lead SOT 23) RJ-5
  • EVAL-PRAOPAMP-1RMZ (Single 8-Lead MSOP) RM-8
  • EVAL-PRAOPAMP-1RZ (Single 8-Lead SOIC) R-8

EVAL-CN0216-ARDZ
Arduino Compatible High Gain Weigh Scale Design (CN0216)
EVAL-CN0216-ARDZANGLE-web EVAL-CN0216-ARDZBOTTOM-web EVAL-CN0216-ARDZTOP-web Weigh Scale System Using the AD7791
EVAL-OPAMP-1
EVAL-OPAMP-1 Evaluation Board

Reference Designs

NDIR Gas Sensing Circuit
CN0338 Circuits from the lab

NDIR Thermopile-Based Gas Sensing Circuit

Features and Benefits

  • Gas sensor based on NDIR
  • Optimized for CO2
  • Arduino shield form factor for rapid prototyping
Dual Gas Sensor Simplified Schematic
CN0396 Circuits from the lab

Dual Electrochemical Gas Sensor with Temperature Compensation

Features and Benefits

  • Dual electrochemical gas sensor 
  • Temperature compensation 
  • 16-bit digitization 
Weigh Scale System Using the AD7791
CN0216 Circuits from the lab

Precision Weigh Scale Design Using the AD7791 24-Bit Sigma-Delta ADC with External ADA4528-1 Zero-Drift Amplifiers

Features and Benefits

  • High gain of 400 using zero drift amps
  • Typical connection to weigh scales with low output signals
  • Performance metrics maintained through 120 Hz
  • Precision weigh scale application circuit
  • Low power and low noise
Dual-Channel Colorimeter with Programmable Gain Transimpedance Amplifiers and Lock-In Amplifiers
CN0363 Circuits from the lab

Dual-Channel Colorimeter with Programmable Gain Transimpedance Amplifiers and Digital Synchronous Detection

Features and Benefits

  • Dual channel RGB colorimeter 
  • High sensitivity low noise transimpedance amplifier 
  • Programmable gain TIA 
  • Digital synchronous detection
CN0338
NDIR Thermopile-Based Gas Sensing Circuit
NDIR Gas Sensing Circuit
CN0338 Evaluation Board
CN0338 Evaluation Board - Bottom View
CN0338 Evaluation Board - Top View
CN0396
Dual Electrochemical Gas Sensor with Temperature Compensation
Dual Gas Sensor Simplified Schematic
EVAL-CN0396-ARDZ Evaluation Board
EVAL-CN0396-ARDZ Evaluation Board - Top View
EVAL-CN0396-ARDZ Evaluation Board - Bottom View
CN0216
Precision Weigh Scale Design Using the AD7791 24-Bit Sigma-Delta ADC with External ADA4528-1 Zero-Drift Amplifiers
Weigh Scale System Using the AD7791
EVAL-CN0216-PMDZ Evaluation Board
EVAL-CN0216-PMDZ Evaluation Board - Top View
EVAL-CN0216-PMDZ Evaluation Board - Bottom View
CN0363
Dual-Channel Colorimeter with Programmable Gain Transimpedance Amplifiers and Digital Synchronous Detection
Dual-Channel Colorimeter with Programmable Gain Transimpedance Amplifiers and Lock-In Amplifiers
EVAL-CN0363-PMDZ Evaluation Board
EVAL-CN0363-PMDZ Evaluation Board - Top View
EVAL-CN0363-PMDZ Evaluation Board - Bottom View

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