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ADS1120IPW Datasheet(PDF) 3 Page - Texas Instruments

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Part # ADS1120IPW
Description  Low-Power, Low-Noise, 16-Bit ADC for Small-Signal Sensors
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

ADS1120IPW Datasheet(HTML) 3 Page - Texas Instruments

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background image
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
CLK
DGND
AVSS
AIN3/REFN1
AIN0/REFP1
AVDD
DVDD
DRDY
Thermal Pad
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
CLK
DGND
AVSS
AIN3/REFN1
AIN2
REFN0
REFP0
AIN1
AIN0/REFP1
AVDD
DVDD
DRDY
DOUT/DRDY
DIN
SCLK
CS
ADS1120
www.ti.com
SBAS535B – AUGUST 2013 – REVISED JANUARY 2015
5 Pin Configuration and Functions
RVA Package
PW Package
VQFN-16
TSSOP-16
(Top View)
(Top View)
Pin Functions
PIN
NO.
ANALOG OR DIGITAL
NAME
RVA
PW
INPUT/OUTPUT
DESCRIPTION
Analog input 0, positive reference input 1.
AIN0/REFP1
9
11
Analog input
Leave unconnected or tie to AVDD if not used.
Analog input 1.
AIN1
8
10
Analog input
Leave unconnected or tie to AVDD if not used.
Analog input 2.
AIN2
5
7
Analog input
Leave unconnected or tie to AVDD if not used.
Analog input 3, negative reference input 1.
AIN3/REFN1
4
6
Analog input
Internal low-side power switch connected between AIN3/REFN1 and AVSS.
Leave unconnected or tie to AVDD if not used.
AVDD
10
12
Analog
Positive analog power supply
AVSS
3
5
Analog
Negative analog power supply
CLK
1
3
Digital input
External clock source pin. Connect to DGND if not used.
CS
16
2
Digital input
Chip select; active low. Connect to DGND if not used.
DGND
2
4
Digital
Digital ground
DIN
14
16
Digital input
Serial data input
DOUT/DRDY
13
15
Digital output
Serial data output combined with data ready; active low
Data ready, active low.
DRDY
12
14
Digital output
Leave unconnected or tie to DVDD using a weak pull-up resistor if not used.
DVDD
11
13
Digital
Positive digital power supply
Negative reference input 0.
REFN0
6
8
Analog input
Leave unconnected or tie to AVDD if not used.
Positive reference input 0.
REFP0
7
9
Analog input
Leave unconnected or tie to AVDD if not used.
SCLK
15
1
Digital input
Serial clock input
Thermal pad
—
—
Thermal power pad. Do not connect or only connect to AVSS.
Copyright © 2013–2015, Texas Instruments Incorporated
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