ChipApex | Global Electronic Components Supplier
AT821
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：RAIL TO RAIL I/O CMOS OPERATIONA
- Series：-
- Mfr：Analog Technologies, Inc.
- Package：Bulk
- Amplifier Type：Standard
- Number of Circuits：1
- Output Type：Single Ended, Rail-to-Rail
- Slew Rate：10V/µs
- Gain Bandwidth Product：14 MHz
- Current - Input Bias：1 pA
- Voltage - Input Offset：600 µV
- Current - Supply：1.9mA
- Current - Output / Channel：110 mA
- Voltage - Supply Span (Min)：2.5 V
- Voltage - Supply Span (Max)：5.5 V
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- -3db Bandwidth：-
Download product information
Overview
The AT821 is a high-precision, rail-to-rail operational amplifier manufactured by Analog Technologies, Inc. It operates on a single supply voltage ranging from 2.5V to 5.5V. Key electrical parameters include a slew rate of 10V/µs, a gain bandwidth product of 14 MHz, an input bias current of 1 pA, and an input offset voltage of 600 µV. The device features a single-ended, rail-to-rail output type.
Feature Summary
- High precision analog signal amplification with rail-to-rail input and output capabilities
- Compatible with low-voltage single-supply operation ranging from 2.5V to 5.5V
- CMOS technology ensuring low power consumption and high input impedance
Applications
- Battery-powered portable electronic devices requiring low voltage operation
- Precision sensor signal conditioning circuits
- Active filter designs in audio and instrumentation systems
Procurement Notes
Verify the manufacturer designation as Analog Technologies, Inc., distinct from other entities using similar naming conventions. Confirm the package style matches SMD/SMT requirements for your PCB layout. Ensure the specific revision level aligns with your design specifications before finalizing orders.
Selection Notes
Select this component when a single-supply op amp with rail-to-rail I/O is required within a 2.5V to 5.5V range. The 14 MHz gain bandwidth and 10V/µs slew rate suit general-purpose applications. Consider the 600 µV offset voltage for precision needs. Verify pinout compatibility if replacing existing designs.
Part Context
The AT821 belongs to a family of high-precision operational amplifiers that includes variants such as the AT822 and AT824. These components are designed for applications demanding accurate signal processing in low-voltage environments. The series emphasizes rail-to-rail performance to maximize dynamic range in single-supply systems.
Replacement Considerations
Publicly confirmed substitute part numbers for the AT821 are not available in the provided documentation. Engineers should consult official cross-reference lists or contact the manufacturer directly for verified alternatives.
