ad5331bru-reel7 Analog Devices, Inc., ad5331bru-reel7 Datasheet - Page 6

• Manufacturer Part Number: ad5331bru-reel7
• Description: 2.5 V To 5.5 V, 115 Ua, Parallel Interface Single Voltage-output 8-/10-/12-bit Dacs
• Manufacturer: Analog Devices, Inc.

AD5330/AD5331/AD5340/AD5341
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
13–20
LDAC
BUF
CLR
DB
DB
WR
CS
. .
9
0
Mnemonic
DB
DB
V
V
GND
CS
WR
GAIN
CLR
LDAC
PD
V
DB
REF
OUT
DD
INTER-
LOGIC
FACE
8
9
0
–DB
7
AD5331 FUNCTIONAL BLOCK DIAGRAM
RESET
POWER-ON
REGISTER
RESET
INPUT
Function
Parallel Data Input.
Most Significant Bit of Parallel Data Input.
Unbuffered Reference Input.
Output of DAC. Buffered output with rail-to-rail operation.
Ground reference point for all circuitry on the part.
Active Low Chip Select Input. This is used in conjunction with WR to write data to the parallel interface.
Active Low Write Input. This is used in conjunction with CS to write data to the parallel interface.
Gain Control Pin. This controls whether the output range from the DAC is 0–V
Active low control input that clears all input registers and DAC registers to zero.
Active low control input that updates the DAC registers with the contents of the input registers.
Power-Down Pin. This active low control pin puts the DAC into power-down mode.
Power Supply Input. These parts can operate from 2.5 V to 5.5 V and the supply should be decoupled
with a 10 µF capacitor in parallel with a 0.1 µF capacitor to GND.
Eight Parallel Data Inputs.
REGISTER
DAC
AD5331 PIN FUNCTION DESCRIPTIONS
10-BIT
DAC
V
REF
BUFFER
V
AD5331
DD
POWER-DOWN
LOGIC
PD
GND
V
OUT
AD5331 PIN CONFIGURATION
LDAC
GAIN
V
V
GND
CLR
DB
DB
REF
OUT
WR
CS
8
9
10
1
2
3
4
5
6
7
8
9
(Not to Scale)
TOP VIEW
AD5331
REF
10-BIT
or 0–2 V
20
19
18
17
16
15
14
13
12
11
DB
DB
DB
DB
DB
DB
DB
DB
V
PD
DD
REF
7
6
5
4
3
2
1
0
.