AD8232
Full part number: AD8232ACPZ-R7
Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.
What the AD8232 does
The AD8232 is a fully integrated, single-lead ECG front-end designed for biopotential measurement. It supports two or three electrode configurations and operates on a single supply from 2.0 V to 3.5 V. Key parameters include 170 µA typical supply current, 80 dB common-mode rejection ratio, and a high signal gain of 100 with DC blocking. The device features an integrated right leg drive amplifier, adjustable high-pass and low-pass filters, and leads-off detection. It is typically used in fitness heart rate monitors, portable ECG systems, remote health monitors, gaming peripherals, and general biopotential signal acquisition to extract small signals from noisy conditions.
Datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 170 µA | 230 µA | TA = 0°C to 70°C; SYSTEM SPECIFICATIONS | ADI datasheet, p. 5 — SPECIFICATIONS |
| output current | 100 µA | 150 mA | — | RL = 50 kΩ; RIGHT LEG DRIVE AMPLIFIER (A2) | ADI datasheet, p. 5 — SPECIFICATIONS |
| supply voltage range | 2 V | — | 3.5 V | ADI datasheet, p. 1 | |
| input offset voltage drift | — | 10 µV/°C | — | Instrumentation Amplifier Inputs, Average Offset Drift | ADI datasheet, p. 4 — Table 1. |
| input offset voltage | — | 1 mV | 5 mV | ADI datasheet, p. 4 — Table 1. | |
| gain bandwidth | — | 100 kHz | — | RIGHT LEG DRIVE AMPLIFIER (A2) | ADI datasheet, p. 5 — SPECIFICATIONS |
| cmrr | 80 dB | 86 dB | — | VCM = 0.35 V to 2.85 V, VDIFF = 0 V; common | ADI datasheet, p. 4 — Table 1. |
| operating temperature | -40 °C | — | 85 °C | ADI datasheet, p. 28 — ORDERING GUIDE | |
| input offset current | — | 25 pA | 100 pA | ADI datasheet, p. 4 — Table 1. | |
| input bias current | — | 50 pA | 200 pA | ADI datasheet, p. 4 — Table 1. | |
| standby current | — | 100 nA | — | TA = 0°C to 70°C; SYSTEM SPECIFICATIONS | ADI datasheet, p. 5 — SPECIFICATIONS |
| propagation delay | — | 500 ns | — | propagation; DC LEADS OFF COMPARATORS | ADI datasheet, p. 5 — SPECIFICATIONS |
| slew rate | — | 0.02 V/µs | — | ADI datasheet, p. 4 — Table 1. | |
| psrr | 76 dB | 90 dB | — | Vs = 2.0 V to 3.5 V | ADI datasheet, p. 4 — Table 1. |
| input voltage noise density | — | 100 nV/√Hz | — | f = 1 kHz | ADI datasheet, p. 4 — Table 1. |
| channel count | — | 1 | — | ADI datasheet, p. 1 |
Closest matches to AD8232
Frequently asked questions
What is the channel count of the AD8232ACPZ-R7?
The channel count is 1.
What is the CMRR when VCM = 0.35 V to 2.85 V, VDIFF = 0 V?
The CMRR is 86 dB.
What is the gain bandwidth of the AD8232ACPZ-R7 when the RIGHT LEG DRIVE AMPLIFIER (A2) is active?
The gain bandwidth is 100 kHz.
What is the input bias current?
The input bias current is 50 pA.
What is the input offset current?
The input offset current is 25 pA.
What is the input offset voltage?
The input offset voltage is 1 mV.
What is the input offset voltage drift of the AD8232ACPZ-R7?
The input offset voltage drift is 10 µV/°C for the Instrumentation Amplifier Inputs, Average Offset Drift.
What is the input voltage noise density at f = 1 kHz?
The input voltage noise density is 100 nV/√Hz at f = 1 kHz.
What is the maximum operating temperature for the AD8232ACPZ-R7?
The maximum operating temperature is 85 °C.
What is the output current when RL = 50 kΩ and the RIGHT LEG DRIVE AMPLIFIER (A2) is active?
The output current is 150 mA.
What is the propagation delay when the DC leads are off the comparators?
The propagation delay is 500 ns.
What is the power supply rejection ratio (PSRR) when the supply voltage (Vs) is between 2.0 V and 3.5 V?
The PSRR is 90 dB when Vs = 2.0 V to 3.5 V.