AD7394AR Analog Devices Inc, AD7394AR Datasheet - Page 6

• Manufacturer Part Number: AD7394AR
• Description: IC DAC 12BIT SRL 3V 14-SOIC
• Manufacturer: Analog Devices Inc

Specifications of AD7394AR

• Rohs Status: RoHS non-compliant
• Settling Time: 60µs
• Number Of Bits: 12
• Data Interface: Serial
• Number Of Converters: 2
• Voltage Supply Source: Single Supply
• Power Dissipation (max): 1mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL

AD7394/AD7395
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Name
AGND
V
V
DGND
CS
CLK
SDI
LDA
RS
LDB
MSB
SHDN
V
V
OUTA
REF
DD
OUTB
Function
Analog Ground.
DAC A Voltage Output.
DAC Reference voltage input terminal. Establishes DAC full-scale output voltage. Pin can be tied to V
Digital Ground. Should be tied to analog GND.
Chip Select, active low input. Disables shift register loading when high. Does not effect LDA or LDB operation.
Clock input, positive edge clocks data into shift register, MSB data bit first.
Serial Data Input, input data loads directly into the shift register.
Load DAC register strobe, level sensitive active low. Transfers shift register data to DAC A register. Asyn-
chronous active low input. See Control Logic Truth Table for operation.
Resets DAC register to zero condition or half-scale, depending on MSB pin logic level. Asynchronous active
low input.
Load DAC register strobe, level-sensitive active low. Transfers shift register data to DAC B register. Asyn-
chronous active low input. See Control Logic Truth Table for operation.
Digital Input: Logic High presets DAC registers to half-scale 800
strobed; Logic Low clears all DAC registers to zero (000
Active low shutdown control input. Does not affect register contents as long as power is present on V
data can be loaded into the shift register and DAC register during shutdown. When device is powered up the
most recent data loaded into the DAC register will control the DAC output.
Positive power supply input. Specified range of operation +2.7 V to +5.5 V
DAC B Voltage Output.
PIN FUNCTION DESCRIPTIONS
V
PIN CONFIGURATIONS
AGND
DGND
OUTA
V
CLK
REF
SDI
CS
1
2
3
4
5
6
7
(Not to Scale)
TOP VIEW
AD7394
AD7395
–6–
14
13
12
11
10
9
8
V
V
SHDN
MSB
LDB
RS
LDA
OUTB
DD
H
) when the RS pin is strobed.
H
(sets MSB bit to one) when the RS pin is
DD
DD
. New
pin.
REV. 0