AD7869JN Analog Devices Inc, AD7869JN Datasheet - Page 13

• Manufacturer Part Number: AD7869JN
• Description: IC I/O PORT 14BIT ANLG 24-DIP
• Manufacturer: Analog Devices Inc

Specifications of AD7869JN

• Rohs Status: RoHS non-compliant
• Applications: Analog I/O
• Interface: TTL/CMOS
• Voltage - Supply: 4.75 V ~ 5.25 V
• Package / Case: 24-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• Converter Type: ADC/DAC
• Resolution: 14b
• Number Of Dac's: Single
• Data Rate: 0.083MSPS
• Digital Interface Type: Serial
• Pin Count: 24
• Package Type: PDIP
• Lead Free Status / Rohs Status: Not Compliant

LK5, ADC Internal Clock Selection
This link configures the ADC for continuous or noncontinuous
internal clock operation.
LK6, DAC Updating
The DAC, LDAC input may asserted independently of the
ADC CONVST signal or it may be tied to CONVST or it may
tied to GND.
LK7, ADC Clock Source
This link provides the option for the ADC to use its own inter-
nal clock oscillator or an external TTL compatible clock.
LK8 Frame Synchronous Option
LK8 provides the option of tying the ADC RFS output to the
DAC TFS input.
REV. A
ANALOG OUTPUT
ANALOG INPUT
68pF
C22
3V RANGE
3V RANGE
15k
R6
AD711
SKT1
SKT2
R
C
IC8 1/2
74HC221
330pF
EXT
EXT
C21
V–
C12
0.1 F
V
5V
/C
IC3
CC
GND
COMPONENT
GRID
A
EXT
LK2
LK1
+
C
2k
R2
CLR
A
COMPONENT
GRID
B
C10
0.1 F
Q
A
B
C11
10 F
10 F
V +
C
C5
LDAC
SKT3
Figure 19. Input/Output Circuit Based on the AD7869
B
C9
10 F
ADG201HS
5V
0.1 F
10 F
V+
C7
C6
LK3
IC4
A
CONVST
B
+
A
C
IC2
B
0.1 F
LK6
SKT4
V+
C8
V –
C
AD711
2k
R1
IN
78L05
GND
IC5
OUT
V
AGND
AGND
DGND
DGND
LDAC
CONVST
V
C4
0.1 F
IN
OUT
AD7869
V
V
SS
DD
IC1
–13–
CONTROL
5V
RO ADC
RO DAC
V
V
RI DAC
C3
10 F
SS
DD
RCLK
TCLK
RFS
TFS
CLK
LK9 Transmit/Receive Clock Option
LK9 provides the option to connect the ADC RCLK to the
DAC TCLK.
–
DR
DT
5V
C2
0.1 F
4.7k
OUT
200
R7
5V
R3
79L05
GND
IC6
A
B
C
C
A
B
Figure 20. SKT6, D-Type Connector Pinout
C1
10 F
–
IN
2k
5V
LK5
R4
0.1 F
LK4
C24
V–
4.7k
R5
–
5V
A
1
74HC4050
C23
10 F
IC7 1/2
LK7
6
NC = NO CONNECT
B
2
LK8
C
7
SKT5
EXT CLK
3
8
LK9
DGND
RCLK
TCLK
4
RFS
TFS
DR
DT
5V
9
9-WAY D-TYPE
CONNECTOR
5
SKT6
AD7869