參數(shù)資料
型號(hào): AD7376ARWZ10-RL
廠商: Analog Devices Inc
文件頁(yè)數(shù): 8/20頁(yè)
文件大?。?/td> 0K
描述: IC POT DIGITAL 10K 16-SOIC
標(biāo)準(zhǔn)包裝: 1,000
接片: 128
電阻(歐姆): 10k
電路數(shù): 1
溫度系數(shù): 標(biāo)準(zhǔn)值 300 ppm/°C
存儲(chǔ)器類型: 易失
接口: 4 線 SPI(芯片選擇)
電源電壓: 4.5 V ~ 33 V,±4.5 V ~ 16.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 16-SOIC W
包裝: 帶卷 (TR)
配用: EVAL-AD7376EBZ-ND - BOARD EVAL FOR AD7376
AD7376
Rev. D | Page 16 of 20
APPLICATIONS INFORMATION
HIGH VOLTAGE DAC
The AD7376 can be configured as a high voltage DAC as high
as 30 V. The circuit is shown in Figure 32. The output is
1
2
1
V
2
.
1
128
)
(
R
D
V
O
(5)
Where D is the decimal code from 0 to 127.
AD7376
U2
AD8512
V+
V–
AD8512
VOUT
VDD
U1B
VDD
RBIAS
ADR512
D1
R2
R1
B
100k
0
11
1
9
-0
3
2
U1A
Figure 32. High Voltage DAC
PROGRAMMABLE POWER SUPPLY
With a boost regulator such as ADP1611, AD7376 can be used
as the variable resistor at the regulator’s FB pin to provide the
programmable power supply (see Figure 33). The output is
2
128
1
V
23
.
1
R
D
V
AB
O
(6)
Note that the AD7376’s VDD is derived from the output. Initially
L1 acts as a short, and VDD is one diode voltage drop below +5 V.
The output slowly establishes to the final value.
The AD7376 shutdown sleep-mode programming can be used
to program a desirable preset level at power-up.
AD7376
ADP1611
1.23V
CC
150pF
RC
220k
COUT
10F
VOUT
D1
L1
4.7F
IN
GND
SS
FB
RT
SW
COMP
U2
C1
0.1F
VDD
R1
100k
A
W
B
CIN
10F
5V
R2
8.5k
CSS
22nF
0
1
9-
03
3
U1
SD
Figure 33. Programmable Power Supply
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