ADS129X datasheet(32/83 Pages) TI2

Part #	ADS129X

Description	ADS129x Low-Power, 2-Channel, 24-Bit Analog Front-End for Biopotential Measurements

PDF	83 Pages

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Manufacturer	TI2 [Texas Instruments]

Direct Link	https://www.ti.com

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MUX1[3:0] = 0000

RLD1P = 1

RLD1N = 1

MUX1[3:0] = 0010

PGA1

RLD2P = 0

RLD2N = 0

PGA2

RLD_AMP

RLDOUT

RLDINV

RLDIN/RLDREF

Filter or

Feedthrough

Device

IN1P

IN1N

EMI

Filter

MUX

EMI

Filter

IN2N

IN2P

RLDREF_INT = 1

(AVDD + AVSS)

RLDREF_INT = 0

1 M

(1)

1.5 nF

(1)

ADS1291, ADS1292, ADS1292R

SBAS502C – DECEMBER 2011 – REVISED APRIL 2020

www.ti.com

Product Folder Links: ADS1291 ADS1292 ADS1292R

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8.3.10.1.1

Input Multiplexer (Measuring the Right Leg Drive Signal)

The RLDOUT signal can also be routed to a channel (that is not used for the calculation of RLD) for

measurement. Figure 36 shows the register settings to route the RLDIN signal to channel 2. The measurement is

done with respect to the voltage (AVDD + AVSS) / 2. This feature is useful for debugging purposes during

product development.

(1)

Typical values for example only.

Figure 36. RLDOUT Signal Configured to be Read Back by Channel 2

ADS129X Datasheet(PDF) 32 Page - Texas Instruments

ADS129X Datasheet(HTML) 32 Page - Texas Instruments

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