ADS7128
Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.
What the ADS7128 family does
The ADS7128 is an 8-channel, 12-bit successive approximation analog-to-digital converter featuring an I2C interface, GPIOs, and a CRC module. It operates on a 2.35V to 5.5V analog supply and a 1.65V to 5.5V digital supply, supporting temperatures from -40°C to +85°C. The device offers a high-speed mode up to 3.4MHz and includes integrated RMS, zero-crossing detection, and analog watchdog functions. Engineers typically use this component in mobile robot CPU boards, refrigerators, freezers, digital multimeters, and rack servers for precise signal acquisition and monitoring.
ADS7128 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 7 µA | 15 µA | No conversion, AVDD = 5 V; iavdd; Electrical Characteristics | TI datasheet, p. 7 — Electrical Characteristics (continued) |
| output current | — | — | 5 mA | VOH> 0.7 x DVDD; ioh | TI datasheet, p. 6 — 7.5 Electrical Characteristics |
| supply voltage range | 2.35 V | 3.3 V | 5.5 V | POWER SUPPLY | TI datasheet, p. 5 — over operating free-air temperature range (unless otherwise noted) |
| abs max voltage (abs max) | -300 mV | — | 5.5 V | TI datasheet, p. 5 — 7.1 Absolute Maximum Ratings | |
| abs max current (abs max) | -10 mA | — | 10 mA | TI datasheet, p. 5 — 7.1 Absolute Maximum Ratings | |
| operating temperature | -40 °C | 25 °C | 85 °C | ta; TEMPERATURE RANGE | TI datasheet, p. 5 — over operating free-air temperature range (unless otherwise noted) |
| rise time | 120 ns | — | — | tr | TI datasheet, p. 7 — Electrical Characteristics (continued) |
| fall time | 120 ns | — | — | tf | TI datasheet, p. 7 — Electrical Characteristics (continued) |