aduc847bs8-3 Analog Devices, Inc., aduc847bs8-3 Datasheet - Page 9

• Manufacturer Part Number: aduc847bs8-3
• Description: Microconverter, 10-channel 24-bit Adc With Embedded 62kb Flash Mcu
• Manufacturer: Analog Devices, Inc.

*Note: This pin is provided on the CSP version only.
REV. PrA 05/03
52-MQFP
Pin No:
---
10
11
1
2
3
4
5
6
8
9
7
Pin No:
56-CSP
56
10
11
1
2
3
4
5
6
7
8
9
P1.2/AIN2/REFIN2+
P1.3/AIN3/REFIN2-
P1.6/AIN6/IEXC1
Mnemonic
P1.0/AIN0
P1.1/AIN1
P1.4/AIN4
P1.5/AIN5
REFIN+
REFIN-
AVDD
AGND
AGND
Pin
PIN FUNCTION DESCRIPTIONS
Type*
I/O
S
S
S
I
I
I
I
I
I
I
I
Description
By power on default P1.0/AIN0 is configured as the AIN0 Analog Input.
AIN0 can be used as a pseudo differential input when used with AINCOM or
as the positive input of a fully differential pair when used with AIN2.
P1.0 has no digital output driver. It can function as a digital input for which
‘0’ must be written to the port bit. As a digital input, this pin must be driven
high or low externally.
By power on default P1.1/AIN1 is configured as the AIN1 Analog Input.
AIN1 can be used as a pseudo differential input when used with AINCOM or
as the negative input of a fully differential pair when used with AIN0.
P1.1 has no digital output driver. It can function as a digital input for which
‘0’ must be written to the port bit. As a digital input, this pin must be driven
high or low externally.
By power on default P1.2/AIN2 is configured as the AIN2 Analog Input.
AIN2 can be used as a pseudo differential input when used with AINCOM or
as the positive input of a fully differential pair when used with AIN3.
P1.2 has no digital output driver. It can function as a digital input for which
‘0’ must be written to the port bit. As a digital input, this pin must be driven
high or low externally. This pin also functions as a second external
differential reference input, positive terminal.
By power on default P1.3/AIN3 is configured as the AIN3 Analog Input.
AIN3 can be used as a pseudo differential input when used with AINCOM or
as the negative input of a fully differential pair when used with AIN2.
P1.3 has no digital output driver. It can function as a digital input for which
‘0’ must be written to the port bit. As a digital input, this pin must be driven
high or low externally. This pin also functions as a second external
differential reference input, negative terminal.
Analog Supply Voltage
Analog Ground.
A second Analog ground is provided with the CSP version only*
External Differential Reference Input, negative terminal
External Differential Reference Input, positive terminal
By power on default P1.4/AIN4 is configured as the AIN4 Analog Input.
AIN4 can be used as a pseudo differential input when used with AINCOM or
as the positive input of a fully differential pair when used with AIN5.
P1.0 has no digital output driver. It can function as a digital input for which
‘0’ must be written to the port bit. As a digital input, this pin must be driven
high or low externally.
By power on default P1.5/AIN5 is configured as the AIN5 Analog Input.
AIN5 can be used as a pseudo differential input when used with AINCOM or
as the negative input of a fully differential pair when used with AIN4.
P1.1 has no digital output driver. It can function as a digital input for which
‘0’ must be written to the port bit. As a digital input, this pin must be driven
high or low externally.
By power on default P1.6/AIN6 is configured as the AIN6 Analog Input.
AIN6 can be used as a pseudo differential input when used with AINCOM or
as the positive input of a fully differential pair when used with AIN7.
One or Both current sources can also be configured at this pin.
P1.0 has no digital output driver. It can function as a digital input for which
‘0’ must be written to the port bit. As a digital input, this pin must be driven
high or low externally.
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