Key facts
- Brand
- Analog Devices
- Model
- ADR821
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-02
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Analog Devices ADR821/ADR827 Low Power Precision Reference and Op Amp Datasheet
The ADR821/ADR827 combines a precision voltage reference and an operational amplifier in a 10‑lead MSOP package. Both devices operate from –40 °C to +125 °C, draw less than 400 µA supply current, and provide rail‑to‑rail input and output. Two reference voltage options (1.25 V and 2.5 V) and two accuracy grades (A and B) give designers flexibility for battery‑powered instrumentation, portable medical devices, data‑acquisition systems, industrial process controls, and automotive applications.
The datasheet details electrical characteristics for the reference and the integrated op‑amp, including offset voltage, bias current, gain, noise, and power‑supply rejection. Pin configurations, functional block diagrams, absolute maximum ratings, and ordering information are also provided to aid schematic design and component selection.
Analog Devices ADR821 specifications
| Operating temperature range | -40 °C to +125 °C |
|---|---|
| Dropout voltage (ADR821) | 0.3 V |
| Voltage noise (0.1 Hz–10 Hz) | 16 µV p‑p |
Source: Analog Devices ADR821/ADR827 Low Power Precision Reference and Op Amp Datasheet
All Analog Devices ADR821 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What temperature range can the ADR821/ADR827 operate in?
Both parts are specified to operate from –40 °C up to +125 °C.
From: Analog Devices ADR821/ADR827 Low Power Precision Reference and Op Amp Datasheet
What is the no‑load supply current of the ADR821/ADR827?
The device draws less than 400 µA of supply current with no load.
What temperature drift does the B‑grade version provide?
The B‑grade version has a temperature coefficient of 15 ppm/°C.