MAX30001 datasheet(4/87 Pages) MAXIM

4 / 87 page

(VDVDD = VAVDD = +1.1V to +2.0V, VOVDD = +1.65V to +3.6V, fFCLK = 32.768kHz, LN_BIOZ = 1, TA = TMIN to TMAX, unless otherwise

noted. Typical values are at VDVDD = VAVDD = +1.8V, VOVDD = +2.5V, TA = +25°C.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

ECG Channel Input Referred

Noise

BW = 0.05 – 150Hz, GCH = 20x

0.77

µVRMS

4.6

µVP-P

BW = 0.05 – 40Hz, GCH = 20x (Note 2)

0.46

1.0

µVRMS

3.1

6.6

µVP-P

Input Leakage Current

TA = +25°C

-1

±0.1

Input Impedance (INA)

Common-mode, DC

GΩ

Differential, DC

1500

MΩ

ECG Channel Total Harmonic

Distortion

THD

VAVDD = +1.80V, VIN = 65mVP-P, FIN = 64Hz,

GCH = 20x, electrode offset = ±300mV

0.025

VAVDD = +1.1V, VIN = 30mVP-P, FIN = 64Hz,

GCH = 20x, electrode offset = ±300mV

0.3

ECG Channel Gain Setting

GCH

Programmable, see ECG_GAIN[1:0]

20 to 160

V/V

ECG Channel Gain Error

(Excluding Reference)

VAVDD = +1.8V, GCH = 20x,

ECGP = ECGN = VMID

-2.5

+2.5

VAVDD = +1.1V, GCH = 20x,

ECGP = ECGN = VMID

-4.5

+4.5

ECG Channel Offset Error

(Note 4)

±0.1

% of

FSR

ADC Resolution

Bits

ADC Sample Rate

Programmable, see ECG_RATE[1:0]

125 to

512

SPS

CAPP to CAPN Impedance

RHPF

FHP = 1/(2π x RHPF x CHPF), CHPF =

capacitance between CAPP and CAPN

320

450

600

kΩ

Analog High-Pass Filter Slew

Current

Fast recovery enabled (1.8V)

160

µA

Fast recovery enabled (1.1V)

Fast recovery disabled

0.09

Fast Settling Recovery Time

CHPF = 10µF, Note: varies by sample rate,

see Table 3.

500

Digital Low-Pass Filter

Linear phase FIR filter.

ECG_RATE = 00, 01

DLPF[0:1] = 01

DLPF[0:1] = 10

100

DLPF[0:1] = 11

150

Digital High-Pass Filter

Phase-corrected 1st-order IIR filter. DHPF = 1

0.5

ECG Power Supply Rejection

PSRR

Lead bias disabled, DC

107

Lead bias disabled, f = 64Hz

110

Electrical Characteristics (continued)

MAX30001

Ultra-Low-Power, Single-Channel Integrated

Biopotential (ECG, R-to-R, and Pace Detection)

and Bioimpedance (BioZ) AFE

www.maximintegrated.com

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