The document provides information about Dinghao's stock inventory, technical data, encyclopedia information, and hot news. It also includes a connection diagram and features and characteristics of the AD621 low drift, low power instrumentation amplifier.
The AD621 is a low‑drift, low‑power instrumentation amplifier offering pin‑strappable gains of 10 and 100, low supply current (1.3 mA max), and a wide supply range (+2.3 V to +18 V). It delivers excellent DC performance with a maximum total gain error of 0.15 % and low noise (9 nV/√Hz at 1 kHz).
The document lists detailed electrical specifications, absolute maximum ratings, package options (8‑lead DIP, Cerdip, SOIC), grounding recommendations, and mechanical dimensions. Typical performance graphs illustrate bandwidth, slew rate, noise, and settling behavior for gains of 10 and 100.
| Supply Current (max) | 1.3 mA |
|---|---|
| Supply Voltage Range | +2.3 V to +18 V |
| Gain Error | 0.15 % |
| Input Voltage Noise (1 kHz) | 9 nV/√Hz |
| Current Noise (0.1 Hz–10 Hz) | 0.28 µV p‑p |
| Bandwidth (Gain = 10) | 800 kHz |
| Input Bias Current | 0.5 nA |
The AD621 draws up to 1.3 mA of supply current.
The input voltage noise is 9 nV/√Hz at 1 kHz.
The AD621 is offered in 8‑lead Plastic DIP (N), 8‑lead Cerdip (Q), and 8‑lead SOIC (R) packages.
The gain error is specified as 0.15 % (typical).