Circuit Centre – ECG Monitoring

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The electrocardiogram featured in this issue’s Circuit Centre requires high- precision, low-noise analogue circuitry and a controller which can handle many input and output signals. This is reflected in the choice of parts highlighted in the following pages, which includes multiplexers, precision op amps and two very different microcontrollers from Cypress Semiconductor and NXP Semiconductors.

Recommended parts for ECG monitoring

OP AMP
STMicroelectronics: TSV71x
STMicroelectronics: TSZ12x
Diodes Incorporated: AZV832
Diodes Incorporated: TLV272

OPTO
Vishay: 6N137, VO2601, VO2611, VO2630, VO2631, and VO4661
Fairchild Semiconductor: HCPL2630M
Diodes Incorporated: T6V0S5

ETHERNET
Diodes Incorporated: PI2EQX8814

PROCESSOR
Cypress Semiconductor: PSoC 5LP
NXP Semiconductors: LPC4333

POWER
Murata: MVAD160
Diodes Incorporated: AP3512E
Diodes Incorporated: AP65101
Diodes Incorporated: DF1510S

MUX
Vishay: DG4051A, DG4052A, DG4053A
NXP Semiconductors: 74HC4851 and 74HCT4851
Fairchild Semiconductor: FSSD06

REF
Diodes Incorporated: AZ431
Diodes Incorporated: LM4040

PROTECTION
AVX: UltraGuard series
NXP Semiconductors: PESD36VS1UL
Diodes Incorporated: D5V0L4B5S

SPEAKER
STMicroelectronics: LDL112
Diodes Incorporated: PAM8304
Fairchild Semiconductor: FAB3103