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參數(shù)資料
| 型號： | 522940B |
| 英文描述： | Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits |
| 中文描述： | 集成電路 |
| 文件頁數(shù)： | 10/12頁 |
| 文件大小： | 174K |
| 代理商： | 522940B |
10
LTC1451
LTC1452/LTC1453
12-Bit 3V to 5V Voltage Output DAC
D
IN
CLK
CS/LD
D
OUT
μ
P
0.1
μ
F
OUTPUT
LTC1451: 0V TO 4.095V
LTC1452: 0V TO 2 REF
LTC1453: 0V TO 2.5V
LTC1451: 2.048V
LTC1452: EXTERNAL
LTC1453: 1.22V
V
CC
V
OUT
GND
LTC145X
V
REF
TO NEXT DAC FOR
DAISY-CHAINING
LTC1451: 4.5V TO 5.5V
LTC1452: 2.7V TO 5.5V
LTC1453: 2.7V TO 5.5V
1451/2/3 TA03
Digitally Programmable Current Source
CLK
D
IN
CS/LD
μ
P
0.1
μ
F
V
CC
V
OUT
GND
5V
LTC1451
1451/2/3 TA05
–
+
LT1077
V
+ 5V TO 100V
FOR R
L
≤
50
Q1
2N3440
R
A
410
R
L
I
OUT
=
≈
0mA TO 10mA
D
IN
4.095
4096 R
A
This circuit shows a digitally programmable current source
from an external voltage source using an external op amp,
an LT1077 and an NPN transistor (2N3440). Any digital
word from 0 to 4095 is loaded into the LTC1451 and its
output correspondingly swings from 0V to 4.095V. In the
configuration shown, this voltage will be forced across the
resistor R
A
. If R
A
is chosen to be 410
the output current
will range from 0mA at zero-scale to 10mA at full-scale.
The minimum voltage for V
S
is determined by the load
resistor R
L
and Q1's V
CESAT
voltage. With a load resistor
of 50
, the voltage source can be as low as 5V.
TYPICAL APPLICATIO S
相關PDF資料 |
PDF描述 |
|---|---|
| 522948H | IC |
| 52295 | Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits |
| 522950R | IC |
| 522952E | Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits |
| 522954A | Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 522942R | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:IC |
| 522943G | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:IC |
| 522944E | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:IC |
| 522946A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:IC |
| 522948H | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:IC |
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