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AD8451 Datasheet(PDF) 8 Page - Analog Devices

Part # AD8451
Description  Low Cost, Precision Analog Front End and Controller for Battery Test/Formation Systems
PDF  33 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD8451 Datasheet(HTML) 8 Page - Analog Devices

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Data Sheet
AD8451
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
VCTRL
VCLN
AVCC
VVE1
NC
VINT
VCLP
VVE0
NC
VVP0
VSET
NC
DVCC
NC
DGND
NC
NC
VREF
NC
VSETBF
NC = NO CONNECT. DO NOT CONNECT TO THIS PIN.
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
AD8451
TOP VIEW
2
3
4
7
6
5
1
8
9
10
12
13
14
15
16
17
18
19
20
11
59
58
57
54
55
56
60
53
52
51
49
48
47
46
45
44
43
42
41
50
ISVP
RGP
NC
NC
NC
NC
NC
NC
NC
NC
NC
RGN
ISVN
NC
NC
NC
NC
NC
NC
NC
PIN 1
INDENTFIER
Figure 2. Pin Configuration
Table 4. Pin Function Descriptions
Pin No.
Mnemonic
Input/Output1
Description
1, 20
ISVP, ISVN
Input
Current Sense Instrumentation Amplifier Positive (Noninverting) and Negative
(Inverting) Inputs. Connect these pins across the current sense shunt resistor.
2, 19
RGP, RGN
N/A
Negative Input of the Preamplifiers of the Current Sense Instrumentation
Amplifier.
3 to 18, 21, 23, 25, 31, 33,
34, 40, 41, 43, 44, 46, 48,
52, 55, 63, 66, 69, 78 to 80
NC
N/A
No Connect. Do not connect to this pin.
22, 35
BVPS, BVNS
Input
Kelvin Sense Pins for the BVP and BVN Voltage Sense Difference Amplifier Inputs.
24, 32
BVP, BVN
Input
Voltage Sense Difference Amplifier Inputs.
26, 42, 73
VREF
Output
Voltage Reference Output Pins. VREF = 2.5 V.
27
BVREFH
Input
Reference Input for the Voltage Sense Difference Amplifier. To level shift the
voltage sense difference amplifier output by approximately 5 mV, connect this
pin to the VREF pin. Otherwise, connect this pin to the BVREFL pin.
28, 75
AGND
N/A
Analog Ground Pins.
29
BVREFL
Input
Reference Input for the Voltage Sense Difference Amplifier. The default connection
is to ground.
30
BVREFLS
Input
Kelvin Sense Pin for the BVREFL Pin.
Rev. 0 | Page 7 of 32



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