ad5331bru-reel7 Analog Devices, Inc., ad5331bru-reel7 Datasheet - Page 8

• 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
HBEN
LDAC
GAIN
BUF
CLR
DB
DB
WR
CS
. .
7
0
Mnemonic
HBEN
BUF
V
V
GND
CS
WR
GAIN
CLR
LDAC
PD
V
DB
INTER-
LOGIC
FACE
REF
OUT
DD
0
–DB
RESET
AD5341 FUNCTIONAL BLOCK DIAGRAM
7
POWER-ON
HIGH BYTE
LOW BYTE
REGISTER
REGISTER
RESET
High Byte Enable Pin. This pin is used when writing to the device to determine if data is written
to the high byte register or the low byte register.
Buffer Control Pin. This pin controls whether the reference input to the DAC is buffered or 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
Asynchronous 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. DB
Function
REGISTER
DAC
AD5341 PIN FUNCTION DESCRIPTIONS
12-BIT
V
DAC
REF
7
BUFFER
is the MSB of these eight bits.
AD5341
POWER-DOWN
V
DD
LOGIC
PD
GND
V
OUT
AD5341 PIN CONFIGURATION
HBEN
LDAC
GAIN
V
V
GND
CLR
BUF
OUT
REF
WR
CS
10
1
2
3
4
5
6
7
8
9
(Not to Scale)
REF
TOP VIEW
AD5341
12-BIT
or 0–2 V
20
19
18
17
16
15
14
13
12
11
DB
PD
DB
DB
DB
DB
DB
DB
DB
V
REF.
DD
7
6
5
4
3
2
1
0