Overview
The ADA4051-1AKSZ-R7 is a CMOS, micropower, zero-drift operational amplifier produced by Analog Devices Inc. This amplifier utilizes an innovative chopping technique to achieve high precision and low power consumption. It is designed for rail-to-rail input/output swing and operates from a power supply range of 1.8 V to 5.5 V. The ADA4051-1 is particularly suited for battery-powered applications where high accuracy and low power are critical.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | 2 | - | 17 | µV | 0 V ≤ VCM ≤ 5 V, −40°C ≤ TA ≤ +125°C |
| Offset Voltage Drift | ∆VOS/∆T | 0.02 | - | 0.1 | µV/°C | −40°C ≤ TA ≤ +125°C |
| Input Bias Current | IB | 20 | - | 70 | pA | −40°C ≤ TA ≤ +125°C |
| Input Offset Current | IOS | 40 | - | 100 | pA | −40°C ≤ TA ≤ +125°C |
| Common-Mode Rejection Ratio | CMRR | 110 | - | 135 | dB | 0 V ≤ VCM ≤ 5 V, −40°C ≤ TA ≤ +125°C |
| Power Supply Rejection Ratio | PSRR | 110 | - | 135 | dB | 1.8 V ≤ VSY ≤ 5.5 V, −40°C ≤ TA ≤ +125°C |
| Supply Current per Amplifier | ISY | 13 | - | 18 | µA | VOUT = VSY/2, −40°C ≤ TA ≤ +125°C |
| Slew Rate (Positive) | SR+ | 0.04 | - | 0.06 | V/µs | RL = 10 kΩ, CL = 100 pF, G = 1 |
| Slew Rate (Negative) | SR− | 0.03 | - | 0.04 | V/µs | RL = 10 kΩ, CL = 100 pF, G = 1 |
Key Features
- Zero-Drift Technology: Utilizes an innovative chopping technique to minimize offset voltage and drift.
- Rail-to-Rail Input/Output Swing: Allows for full signal swing from the power supply rails.
- Low Power Consumption: Typical supply current of 13 µA to 18 µA per amplifier.
- High Precision: Extremely low offset voltage (2 µV to 17 µV) and low offset voltage drift (0.02 µV/°C to 0.1 µV/°C).
- High CMRR and PSRR: Common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR) of 110 dB to 135 dB.
- Extended Temperature Range: Specified for the extended industrial temperature range of −40°C to +125°C.
Applications
- Battery-Powered Devices: Ideal for applications where high precision and low power consumption are critical.
- Medical Devices: Suitable for medical equipment requiring high accuracy and low noise.
- Industrial Automation: Used in industrial control systems and sensors where precision and reliability are essential.
- Aerospace and Defense: Applicable in various aerospace and defense applications requiring high precision and reliability.
Q & A
- What is the operating voltage range of the ADA4051-1AKSZ-R7?
The ADA4051-1AKSZ-R7 operates from a power supply range of 1.8 V to 5.5 V.
- What is the typical supply current per amplifier?
The typical supply current per amplifier is 13 µA to 18 µA.
- What is the offset voltage of the ADA4051-1AKSZ-R7?
The offset voltage is 2 µV to 17 µV.
- What is the common-mode rejection ratio (CMRR) of the ADA4051-1AKSZ-R7?
The CMRR is 110 dB to 135 dB.
- What is the slew rate of the ADA4051-1AKSZ-R7?
The slew rate is 0.04 V/µs to 0.06 V/µs for positive slew and 0.03 V/µs to 0.04 V/µs for negative slew.
- What are the typical applications of the ADA4051-1AKSZ-R7?
Typical applications include battery-powered devices, medical devices, industrial automation, and aerospace and defense.
- What is the temperature range for which the ADA4051-1AKSZ-R7 is specified?
The ADA4051-1AKSZ-R7 is specified for the extended industrial temperature range of −40°C to +125°C.
- What packaging options are available for the ADA4051-1AKSZ-R7?
The ADA4051-1 is available in 5-lead SOT-23 and 5-lead SC-70 packages.
- What is the input bias current of the ADA4051-1AKSZ-R7?
The input bias current is 20 pA to 70 pA.
- What is the gain bandwidth product (GBP) of the ADA4051-1AKSZ-R7?
The gain bandwidth product (GBP) is 125 kHz.
