AD7148 Analog Devices, AD7148 Datasheet - Page 33

• Manufacturer Part Number: AD7148
• Manufacturer: Analog Devices

Specifications of AD7148

• Resolution (bits): 16bit
• # Chan: 8
• Sample Rate: 250kSPS
• Interface: I²C/Ser 2-Wire,Ser
• Analog Input Type: SE-Uni
• Ain Range: ± 8 pF (Delta C)
• Adc Architecture: Sigma-Delta
• Pkg Type: CSP

TYPICAL APPLICATION CIRCUIT
BUTTON
BUTTON
BUTTON
1
2
3
4
Figure 45. Typical Application Circuit
CIN4
CIN5
CIN6
CIN7
Rev. A | Page 33 of 56
AD7148
100nF
0.1μF
V
SCLK
DRIVE
SDA
INT
V
12
11
10
9
DRIVE
2.2kΩ
1μF TO 10μF
(OPTIONAL)
V
V
DRIVE
CC
2.2kΩ
2.7V TO 3.6V
V
DRIVE
2.2kΩ
HOST WITH I
INT
SCK
SDO
INTERFACE
2
C
AD7148