參數(shù)資料
型號(hào)： AD5341BRU
廠商： ANALOG DEVICES INC
元件分類(lèi)： DAC
英文描述： 2.5 V to 5.5 V, 115 uA, Parallel Interface Single Voltage-Output 8-/10-/12-Bit DACs
中文描述： PARALLEL, WORD INPUT LOADING, 8 us SETTLING TIME, 12-BIT DAC, PDSO20
封裝： PLASTIC, TSSOP-20
文件頁(yè)數(shù)： 7/20頁(yè)
文件大?。?/td> 359K
代理商： AD5341BRU
REV. 0
AD5330/AD5331/AD5340/AD5341
–7–
AD5340 FUNCTIONAL BLOCK DIAGRAM
BUFFER
12-BIT
DAC
DAC
REGISTER
INPUT
REGISTER
INTER-
FACE
LOGIC
POWER-DOWN
LOGIC
BUF
GAIN
DB
11
DB
0
.
CS
WR
CLR
LDAC
V
REF
V
DD
V
OUT
PD
GND
AD5340
POWER-ON
RESET
RESET
AD5340 PIN FUNCTION DESCRIPTIONS
Pin
No.
Mnemonic
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DB
10
DB
11
BUF
V
REF
V
OUT
NC
GND
CS
WR
GAIN
CLR
LDAC
PD
V
DD
Parallel Data Input.
Most Significant Bit of Parallel Data Input.
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.
No Connect.
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
REF
or 0–2 V
REF.
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
μ
F capacitor in parallel with a 0.1
μ
F capacitor to GND.
10 Parallel Data Inputs.
15–24
DB
0
–DB
9
AD5340 PIN CONFIGURATION
TOP VIEW
(Not to Scale)
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
AD5340
LDAC
GAIN
WR
CS
DB
10
DB
11
V
OUT
GND
PD
V
DD
DB
0
DB
1
DB
2
DB
7
DB
6
DB
5
DB
3
DB
4
12-BIT
V
REF
BUF
CLR
DB
8
DB
9
NC
NC = NO CONNECT
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參數(shù)描述
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