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AD8631 View Datasheet(PDF) - Analog Devices

Part Name
Description
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AD8631 Datasheet PDF : 12 Pages
First Prev 11 12
AD8631/AD8632
AD8632’s 5-lead SOT-23, 8-lead µSOIC, and 8-lead SOIC
footprint and this circuit offers a compact solution.
TO TELEPHONE
LINE
1:1
ZO
600
6.2V
6.2V
T1
MIDCOM
671-8005
R3
360
P1
Tx GAIN
ADJUST
R2
9.09k
2k
2
1
R5
A1 3
10k
R1 C1
10k0.1F
TRANSMIT
TxA
R6
10k
7
6
A2 5
+1.8V DC
R7
10k
10F
R8
10k
R9
10k
R10
10k
R11
10k
2
1
3 A3
A1, A2 = 1/2 AD8632
A3, A4 = 1/2 AD8632
R12
10k
R13 R14
10k14.3k
P2
Rx GAIN
ADJUST
RECEIVE
RxA
6
2kC2
5 A4
7
0.1F
Figure 31. A Single-Supply Direct Access Arrangement
for Modems
SPICE Model
The SPICE model for the AD8631 amplifier is available and
can be downloaded from the Analog Devices’ web site at
http://www.analog.com. The macro-model accurately simulates
a number of AD8631 parameters, including offset voltage, input
common-mode range, and rail-to-rail output swing. The output
voltage versus output current characteristics of the macro-model
is identical to the actual AD8631 performance, which is a critical
feature with a rail-to-rail amplifier model. The model also accurately
simulates many ac effects, such as gain-bandwidth product, phase
margin, input voltage noise, CMRR and PSRR versus frequency,
and transient response. Its high degree of model accuracy makes the
AD8631 macro-model one of the most reliable and true-to-life
models available for any amplifier.
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
8-Lead Narrow Body SOIC
(SO-8)
8-Lead SOIC
(RM-8)
0.1968 (5.00)
0.1890 (4.80)
0.122 (3.10)
0.114 (2.90)
8
0.1574 (4.00)
0.1497 (3.80) 1
5
0.2440 (6.20)
4 0.2284 (5.80)
PIN 1
0.0098 (0.25)
0.0040 (0.10)
0.0688 (1.75)
0.0532 (1.35)
0.0196 (0.50)
0.0099 (0.25)؋ 45؇
8
0.122 (3.10)
0.114 (2.90)
1
5
0.199 (5.05)
0.187 (4.75)
4
PIN 1
0.0256 (0.65) BSC
SEATING
PLANE
0.0500 0.0192 (0.49)
(1.27) 0.0138 (0.35)
BSC
0.0098 (0.25)
0.0075 (0.19)
8؇
0؇ 0.0500 (1.27)
0.0160 (0.41)
0.120 (3.05)
0.120 (3.05)
0.112 (2.84)
0.112 (2.84)
0.006 (0.15)
0.002 (0.05)
SEATING
PLANE
0.043 (1.09)
0.037 (0.94)
33؇
0.018 (0.46)
0.008 (0.20)
0.011 (0.28) 27؇
0.003 (0.08)
0.028 (0.71)
0.016 (0.41)
5-Lead SOT-23
(RT-5)
0.1181 (3.00)
0.1102 (2.80)
0.0669 (1.70)
0.0590 (1.50)
PIN 1
0.0512 (1.30)
0.0354 (0.90)
5
4
0.1181 (3.00)
0.1024 (2.60)
1
2
3
0.0374 (0.95) BSC
0.0748 (1.90)
BSC
0.0571 (1.45)
0.0374 (0.95)
0.0059 (0.15)
0.0019 (0.05)
0.0197 (0.50)
0.0138 (0.35)
SEATING
PLANE
–12–
0.0079 (0.20)
0.0031 (0.08)
10؇
0؇ 0.0217 (0.55)
0.0138 (0.35)
REV. 0
 

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