amplifiers-comparators

AD8232

Full part number: AD8232ACPZ-R7

Key datasheet specifications and the closest alternatives, ranked by parametric similarity and grounded in the manufacturer datasheet.

01 — Overview

This is the AD8232 datasheet, covering a single-lead ECG front-end amplifier. It details a low-power instrumentation amplifier for heart rate monitoring and biopotential acquisition in noisy conditions. Key parameters include 170 µA typical supply current, 80 dB common-mode rejection, 100x signal gain with DC blocking, and an integrated right-leg drive amplifier. The device operates on 2.0V to 3.5V supplies and features adjustable high-pass and low-pass filters.

02 — Key specifications

Datasheet parameters

ParameterMinTypMaxConditions
output voltage 100 mV — — RL = 50 kΩ
output current — 6.3 mA —
supply voltage range 200 mV — — TA = 0°C to 70°C
input offset voltage drift — 10 µV/°C —
input offset voltage — 3 mV 8 mV
gain bandwidth — 100 kHz —
cmrr 80 dB 86 dB — VCM = 0.35 V to 2.85 V, VDIFF = 0 V
operating temperature -40 °C — 85 °C
input offset current — 25 pA 100 pA
input bias current — 50 pA 200 pA
slew rate — 20 kV/s —
psrr 76 dB 90 dB — Vs = 2.0 V to 3.5 V
input voltage noise density — 100 nV/√Hz — f = 1 kHz
03 — Alternatives

Closest matches to AD8232

TL062 10.0× higher gain bandwidth, 5.0× lower input offset current, 2.4× lower input voltage noise density
LM124 20.0× higher slew rate, 13.0× higher gain bandwidth, 6.3× higher output current
LM158 15.0× higher slew rate, 7.0× higher gain bandwidth, 3.2× higher output current
LM2902B 20.0× higher input offset current, 12.0× higher gain bandwidth, 3.2× higher output current
TLV2370 5.0× lower input offset voltage drift, 2.6× lower input voltage noise density, 1.9× higher operating temperature
BA10324AF 10.0× higher slew rate, 5.6× higher output current, 5.0× higher gain bandwidth
TL062ACD 10.0× higher gain bandwidth, 5.0× lower input offset current, 2.4× lower input voltage noise density
LM741 4.4× higher gain bandwidth, 4.0× higher output current, 3.0× lower input offset voltage
04 — FAQ

Frequently asked questions

What is the Common-Mode Rejection Ratio (CMRR) of the AD8232ACPZ-R7?

The CMRR is 86 dB when VCM = 0.35 V to 2.85 V and VDIFF = 0 V.

What is the gain bandwidth of the AD8232ACPZ-R7?

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 3 mV.

What is the input offset voltage drift?

The input offset voltage drift is 10 µV/°C.

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.

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