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AD5306 Datasheet(Arkusz danych) 8 Page - Analog Devices

Numer części AD5306
Szczegółowy opis  2.5 V to 5.5 V, 115 uA, Parallel Interface Single Voltage-Output 8-/10-/12-Bit DACs
Pobierz  20 Pages
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Producent  AD [Analog Devices]
Strona internetowa  http://www.analog.com
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 8 page
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REV. 0
AD5330/AD5331/AD5340/AD5341
–8–
AD5341 FUNCTIONAL BLOCK DIAGRAM
VOUT
BUFFER
12-BIT
DAC
GND
AD5341
PD
DAC
REGISTER
LOW BYTE
REGISTER
VDD
HBEN
CS
WR
CLR
LDAC
RESET
POWER-ON
RESET
HIGH BYTE
REGISTER
POWER-DOWN
LOGIC
BUF
GAIN
DB7
DB0
..
INTER-
FACE
LOGIC
VREF
AD5341 PIN FUNCTION DESCRIPTIONS
Pin
No.
Mnemonic
Function
1
HBEN
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.
2
BUF
Buffer Control Pin. This pin controls whether the reference input to the DAC is buffered or unbuffered.
3VREF
Reference Input.
4VOUT
Output of DAC. Buffered output with rail-to-rail operation.
5
GND
Ground reference point for all circuitry on the part.
6
CS
Active low Chip Select Input. This is used in conjunction with
WR to write data to the parallel interface.
7
WR
Active Low Write Input. This is used in conjunction with
CS to write data to the parallel interface.
8
GAIN
Gain Control Pin. This controls whether the output range from the DAC is 0–VREF or 0–2 VREF.
9
CLR
Asynchronous active low control input that clears all input registers and DAC registers to zero.
10
LDAC
Active low control input that updates the DAC registers with the contents of the input registers.
11
PD
Power-Down Pin. This active low control pin puts the DAC into power-down mode.
12
VDD
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.
13–20
DB0–DB7
Eight Parallel Data Inputs. DB7 is the MSB of these eight bits.
AD5341 PIN CONFIGURATION
TOP VIEW
(Not to Scale)
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
AD5341
LDAC
GAIN
WR
CS
GND
VREF
VOUT
PD
VDD
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
12-BIT
CLR
HBEN
BUF




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