AD7440/AD7450A1 are 10-bit and 12-bit high speed, low power, successive approximation (SAR) analog-to-digital converters with a fully differential analog input and wide input bandwidth.
The AD7440/AD7450A family provides high‑speed, low‑power analog‑to‑digital conversion with fully differential inputs. They operate from a single 3 V or 5 V supply and achieve up to 1 MSPS conversion rate with very low power dissipation.
Typical applications include transducer interfaces, battery‑powered systems, and data‑acquisition equipment. The devices feature flexible clock management, a shutdown mode for power saving, and a variable external reference for selectable input ranges.
| Maximum Throughput Rate | 1 MSPS |
|---|---|
| Power Consumption (3 V supply, 1 MSPS) | 4 mW max |
| SINAD (100 kHz input) | 70 dB min |
| Resolution (AD7440) | 10 bits |
| Resolution (AD7450A) | 12 bits |
| Input Leakage Current | 1 pA max |
The devices can convert at up to 1 MSPS.
They operate from a single 3 V or 5 V supply.
Power‑down mode draws a maximum of 1 pA.
It provides a fully differential analog input.