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參數(shù)資料
| 型號： | AS1505-T |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | DAC |
| 英文描述： | Octal 8-bit Zero-Scale Setting; 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(guān)斷和中間刻度重置 |
| 封裝： | SOIC(150mil)-16 |
| 文件頁數(shù)： | 9/17頁 |
| 文件大小： | 471K |
| 代理商： | AS1505-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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