AD7683 Analog Devices, AD7683 Datasheet - Page 7

• Manufacturer Part Number: AD7683
• Manufacturer: Analog Devices

Specifications of AD7683

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 100kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (Vref) p-p,Uni (Vref)
• Adc Architecture: SAR
• Pkg Type: CSP,SOP

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 8. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
1
AI = analog input; DI = digital input; DO = digital output; and P = power.
Mnemonic
REF
+IN
–IN
GND
CS
D
DCLOCK
VDD
OUT
Type
AI
AI
AI
P
DI
DO
DI
P
1
Function
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.
Analog Input. It is referred to Pin –IN. The voltage range, that is, the difference between +IN and –IN, is 0 V
to V
Analog Input Ground Sense. Connect this pin to either the analog ground plane or a remote sense
ground.
Power Supply Ground.
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 D
Serial Data Output. The conversion result is output on this pin. It is synchronized to DCLOCK.
Serial Data Clock Input.
Power Supply.
REF
.
Figure 6. 8-Lead MSOP and QFN (LFCSP) Pin Configuration
GND
REF
+IN
–IN
1
2
3
4
Rev. A | Page 7 of 16
(Not to Scale)
AD7683
TOP VIEW
8
7
6
5
VDD
DCLOCK
D
CS
OUT
OUT
. When high, D
OUT
is high impedance.
AD7683