參數(shù)資料
型號: AS1504-T
廠商: AUSTRIAMICROSYSTEMS AG
元件分類: DAC
英文描述: Octal, 8-bit, Mid-Scale Reset; Package Type: SOIC(150mil)-16
中文描述: 八進制8位可編程低功耗DAC的具有關斷和中間刻度重置
封裝: SOIC(150mil)-16
文件頁數(shù): 9/17頁
文件大?。?/td> 471K
代理商: AS1504-T
www.austriamicrosystems.com
Revision 1.0
9 - 17
AS1504/AS1505
Data Sheet
- Detailed Description
The AS1504 provides a mid-scale reset activated by pin RSN which simplifies settings on initial power up. The AS1505
has a high- and low-side reference (pins V
REFH
and V
REFL
) to determine independent positive full-scale and zero-scale
settings to optimize resolution. -
Both devices feature a power-on reset which resets them to mid-scale.
Both models feature a low-power shutdown mode which places the device into low power-consumption mode resulting
in only leakage currents being consumed from the power supply, V
REFx
inputs, and all 8 outputs. In shutdown mode the
DAC
x
latch settings are maintained. When returning to normal operation from shutdown mode, the DAC
x
outputs
return to their previous voltage settings.
Figure 13. Serial Data Input Timing Diagram; RSN = 1
Figure 14. Reset Timing Diagram
Table 5. AS1504/AS1505
Serial Data Word Format
Address Bits
B10
B9
B8
A2
A1
A0
MSB
LSB
2
10
Data Bits
B4
D4
B7
D7
MSB
2
7
B6
D6
B5
D5
B3
D3
B2
D2
B1
D1
B0
D0
LSB
2
0
2
9
2
8
2
6
2
5
2
4
2
3
2
2
2
1
t
CL
t
CSH
t
CH
t
DS
t
CS1
t
CSW
t
S
± 1 LSB Error Band
SDI
CLK
CSN
A
x
or D
x
A
x
or D
x
1
0
1
0
1
0
+5V
0V
± 1 LSB
t
DH
t
CSS
V
OUT
V
OUT
+5V
+2.5V
± 1 LSB Error Band
± 1 LSB
RSN
1
0
t
RS
t
S
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