AD7874AR Analog Devices Inc, AD7874AR Datasheet - Page 14

• Manufacturer Part Number: AD7874AR
• Description: A/D Converter (A-D) IC
• Manufacturer: Analog Devices Inc
• Type: Data Acquisition System (DAS)r

Specifications of AD7874AR

• Package/case: 28-SOIC
• Features: 4?Ch., Simultaneous Sampl., Data Acquis. Syst.
• Interface Type: Parallel
• Leaded Process Compatible: No
• Number Of Bits: 12
• Number Of Channels: 4
• Rohs Status: RoHS non-compliant
• Resolution (bits): 12 b
• Sampling Rate (per Second): 116k
• Data Interface: Parallel
• Voltage Supply Source: Dual ±
• Voltage - Supply: 5V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AD7874
SKT1
SKT2
SKT3
SKT4
V +
V–
C3
C1
LK1
LK2
LK3
LK4
V
Figure 20. Data Acquisition Circuit Using the AD7874
SS
C4
C2
V
IN
DD
Figure 21. PCB Silkscreen for Figure 20
78L05
IC3
IC1
AD713
79L05
IC4
C5
V
V
V
V
DGND
AGND
OUT
IN2
IN3
IN4
IN1
C7
AD7874
V
SS
CONVST
IC2
REF IN
C8
–14–
V
DB11
C6
DB0
OUT
CLK
REF
DD
INT
RD
CS
SKT5
A
CLK
LK5
B
CONVST
SKT6
B
A
DATA BUS
REFERENCE
IC5
A
B
SKT6
IC5
R2
DGND
+
R1
5V
11
23, 24
1
25, 26
SKT8
22
3
5
2
8
REV. C