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AD7846AP Datasheet(PDF) 5 Page - Analog Devices

Part # AD7846AP
Description  16-Bit Voltage Output DAC
PDF  16 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7846AP Datasheet(HTML) 5 Page - Analog Devices

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AD7846
REV. E
–5–
PIN FUNCTION DESCRIPTION
Pin
Mnemonic
Description
1–3
DB2–DB0
Data I/O pins. DB0 is LSB.
4VDD
Positive supply for analog circuitry. This is
+15 V nominal.
5VOUT
DAC output voltage pin.
6RIN
Input to summing resistor of DAC output
amplifier. This is used to select output
voltage ranges. See Table I.
7VREF+
VREF+ Input. The DAC is specified for VREF+
= +5 V.
8VREF–
VREF– Input. For unipolar operation con-
nect VREF– to 0 V and for bipolar operation
connect it to –5 V. The device is specified
for both conditions.
9VSS
Negative supply for the analog circuitry.
This is –15 V nominal.
10–19 DB15–DB6
Data I/O pins. DB15 is MSB.
20
DGND
Ground pin for digital circuitry.
21
VCC
Positive supply for digital circuitry. This is
+5 V nominal.
22
R/
W
R/
W input. This can be used to load data to
the DAC or to read back the DAC latch
contents.
23
CS
Chip select input. This selects the device.
24
CLR
Clear input. The DAC can be cleared to
000 . . . 000 or 100 . . . 000. See Table II.
25
LDAC
Asynchronous load input to DAC.
26–28 DB5–DB3
Data I/O pins.
Table I. Output Voltage Ranges
Output Range
VREF+
VREF–
RIN
0 V to +5 V
+5 V
0 V
VOUT
0 V to +10 V
+5 V
0 V
0 V
+5 V to –5 V
+5 V
–5 V
VOUT
+5 V to –5 V
+5 V
0 V
+5 V
+10 V to –10 V
+5 V
–5 V
0 V
PIN CONFIGURATIONS
DIP
TOP VIEW
(Not to Scale)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
AD7846
DB11
DB12
DB13
DB14
DB15
VSS
VREF–
DB2
DB1
DB0
VDD
VREF+
RIN
VOUT
DB10
DB9
DB8
DB7
DB6
DGND
DB3
DB4
DB5
LDAC
R/
W
CS
CLR
VCC
PLCC
25
24
23
22
21
20
19
5
6
7
8
9
10
11
4
3
2
1
28
27
26
PIN 1
IDENTIFIER
TOP VIEW
(Not to Scale)
12
13
14
15
16
17
18
LDAC
CLR
CS
R/
W
DGND
DB6
VOUT
RIN
VREF+
VREF–
VSS
DB15
DB14
AD7846
VCC



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