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AD7683ARMZ Datasheet(PDF) 8 Page - Analog Devices

No. de pieza AD7683ARMZ
Descripción Electrónicos  16-Bit, 100 kSPS, Single-Ended PulSAR ADC in MSOP/QFN
PDF  17 Pages
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo AD - Analog Devices

AD7683ARMZ Datasheet(HTML) 8 Page - Analog Devices

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Data Sheet
AD7683
Rev. B | Page 7 of 16
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
REF 1
+IN 2
–IN 3
GND 4
VDD
8
DCLOCK
7
DOUT
6
CS
5
AD7683
TOP VIEW
(Not to Scale)
Figure 6. 8-Lead MSOP Pin Configuration
Table 8. 8-Lead MSOP Pin Function Descriptions
Pin No.
Mnemonic
Type1
Function
1
REF
AI
Reference Input Voltage. The REF range is from 0.5 V to VDD. It is referred to the GND pin. Decouple the
REF pin closely to the GND pin with a ceramic capacitor of a few μF.
2
+IN
AI
Analog Input. It is referred to Pin –IN. The voltage range, that is, the difference between +IN and –IN, is 0 V
to VREF.
3
–IN
AI
Analog Input Ground Sense. Connect this pin to either the analog ground plane or a remote sense ground.
4
GND
P
Power Supply Ground.
5
CS
DI
Chip Select Input. On its falling edge, it initiates the conversions. The part returns to shutdown mode as
soon as the conversion is completed. It also enables DOUT. When high, DOUT is high impedance.
6
DOUT
DO
Serial Data Output. The conversion result is output on this pin. It is synchronized to DCLOCK.
7
DCLOCK
DI
Serial Data Clock Input.
8
VDD
P
Power Supply.
1 AI = analog input; DI = digital input; DO = digital output; and P = power.
3
–IN
4
GND
1
REF
2
+IN
6DOUT
5CS
NOTES
1. EXPOSED PAD. CONNECT THE EXPOSED PAD TO GND. THIS CONNECTION
IS NOT REQUIRED TO MEET SPECIFIED ELECTRICAL PERFORMANCE.
8VDD
7 DCLOCK
AD7683
TOP VIEW
(Not to Scale)
Figure 7. 8-Lead QFN (LFCSP) Pin Configuration
Table 9. 8-Lead QFN (LFCSP) Pin Function Descriptions
Pin No.
Mnemonic
Type1
Function
1
REF
AI
Reference Input Voltage. The REF range is from 0.5 V to VDD. It is referred to the GND pin. Decouple the
REF pin closely to the GND pin with a ceramic capacitor of a few μF.
2
+IN
AI
Analog Input. It is referred to Pin –IN. The voltage range, that is, the difference between +IN and –IN, is 0 V
to VREF.
3
–IN
AI
Analog Input Ground Sense. Connect this pin to either the analog ground plane or a remote sense ground.
4
GND
P
Power Supply Ground.
5
CS
DI
Chip Select Input. On its falling edge, it initiates the conversions. The part returns to shutdown mode as
soon as the conversion is completed. It also enables DOUT. When high, DOUT is high impedance.
6
DOUT
DO
Serial Data Output. The conversion result is output on this pin. It is synchronized to DCLOCK.
7
DCLOCK
DI
Serial Data Clock Input.
8
VDD
P
Power Supply.
EPAD
Exposed Pad. Connect the exposed pad to GND. This connection is not required to meet specified
electrical performance.
1 AI = analog input; DI = digital input; DO = digital output; and P = power.



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