參數(shù)資料
型號(hào): AMC7820
英文描述: Analog Monitoring and Control Circuitry
中文描述: 模擬監(jiān)測(cè)和控制電路
文件頁數(shù): 15/28頁
文件大?。?/td> 468K
代理商: AMC7820
AMC7820
SBAS231B
www.ti.com
15
FIGURE 2. AMC7820 Block Diagram.
DAC1
(12 Bits)
DAC2
(12 Bits)
DAC0
(12 Bits)
MUX
ADC
(12 Bits)
Clock
MUX
CTL
Reference
(2.5V)
S
R
R
R
R
Current Mirror
1:4
OPA8
2.5V
DAC1_OUT_SET
21
22
20
17
29
30
28
31
10
9
8
25
24
23
27
26
15
14
16
35
34
33
32
12
11
13
0
1
2
3
4
5
6
7
6
7
4
3
5
48
47
1
46
2
44
45
DAC1_OUT
DAC2_OUT_SET
DAC2_OUT
OPA1_IN+
OPA1_OUT
SW1_OUT
OPA1_IN
OPA2_IN+
OPA2_OUT
OPA2_IN
OPA3_IN+
OPA3_OUT
OPA3_IN
EXT_REF_IN
REF_OUT_+2.5V
OPA4_OUT
OPA4_IN
OPA4_IN+
CH2
CH3
CH4
CH5
OPA5_OUT
OPA5_IN
OPA5_IN+
DAC0_OUT
DAC0_OUT_SET
OPA6_OUT
OPA6_IN
OPA6_IN+
OPA7_IN+
OPA7_OUT
SW2_OUT
OPA7_IN
T_SENSOR_VOLTAGE
THERM_I_OUTPUT
ISET_RESISTOR
OPA4
OPA3
OPA2
OPA1
OPA5
OPA6
SW2_DISABLE
EN
DIS
Unipolar_Bipolar_CTR
1
= SW2 Disable
Bip
Uni
SW3
SW2
DIS
SW1
OPA7
OPA9
R
R
37
38
39
40
36
SCLK
MOSI
MISO
SS
RESET
19
18
42
43
41
AV
DD
AGND
DV
DD
DGND
BV
DD
NOTE: After power-on or reset,
SW1 and SW2 are disabled, SW3
is positioned to Bip, SW4 is on,
and the voltage on pin 47 equals
2.5V (V
) if OPA7 is connected
as an integrator.
TEC
Soft-Start
Controller
EN
ON
OFF
SOFT_START_ENABLE
SOFT_START_CTR =
1
After Reset
SW4
SW1_DISABLE
1
= Disable
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