Datasheet

AD7245A/AD7248A
REV. B
–15–
MECHANICAL INFORMATION—AD7245A
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
24-Lead Plastic DIP
(N-24)
24
112
13
PIN 1
1.228 (31.19)
1.126 (31.14)
0.260 ⴞ 0.001
(6.61 ⴞ 0.03)
0.11 (2.79)
0.09 (2.28)
0.130 (3.30)
0.128 (3.25)
0.015 (0.381)
0.008 (0.204)
0.32 (8.128)
0.30 (7.62)
SEATING
PLANE
0.060 (1.52)
0.015 (0.38)
0.02 (0.5)
0.09 (2.28)
0.07 (1.78)
0.05 (1.27)
LEAD NO. 1 IDENTIFIED BY DOT OR NOTCH.
PLASTIC LEADS WILL BE EITHER SOLDER DIPPED OR TIN LEAD PLATED
IN ACCORDANCE WITH MIL-M-38510 REQUIREMENTS
24-Lead SOIC
(R-24)
0.013 (0.32)
0.009 (0.23)
8ⴗ
0ⴗ
0.005 (0.13)
0.016 (0.40)
SEATING
PLANE
0.012 (0.30)
0.004 (0.10)
0.019 (0.49)
0.014 (0.35)
0.104 (2.65)
0.093 (2.35)
0.050
(1.27)
BSC
24 13
12
1
0.419 (10.65)
0.394 (10.00)
0.299 (7.6)
0.291 (7.4)
PIN 1
0.614 (15.6)
0.598 (15.2)
28-Terminal
Leadless Ceramic Chip Carrier
(E-28A)
1
28
5
11
18
BOTTOM
VIEW
19
25
26
4
12
0.028 (0.71)
0.022 (0.56)
45ⴗ TYP
0.055 (1.40)
0.045 (1.14)
0.050
(1.27)
BSC
0.075
(1.91)
REF
0.011 (0.28)
0.007 (0.18)
R TYP
0.095 (2.41)
0.075 (1.90)
0.150
(3.51)
BSC
0.300 (7.62)
2
BSC
0.200
(5.08)
BSC
0.075
(1.91)
REF
0.458 (11.63)
0.442 (11.23)
SQ
0.458
(11.63)
MAX
SQ
0.100 (2.54)
1
0.064 (1.63)
0.088 (2.24)
0.054 (1.37)
NOTES
1
THIS DIMENSION CONTROLS THE OVERALL PACKAGE THICKNESS.
2
APPLIES TO ALL FOUR SIDES.
ALL TERMINALS ARE GOLD PLATED
24-Lead Cerdip
(Q-24)
24
112
13
0.295
(7.493)
MAX
PIN 1
0.070 (1.78)
0.030 (0.76)
15ⴗ
0ⴗ
0.320 (8.128)
0.290 (7.366)
0.012 (0.305)
0.008 (0.203)
0.225
(5.715)
MAX
1.290 (32.77) MAX
0.125
(3.175)
MIN
0.021 (0.533)
0.015 (0.381)
TYP
0.110 (2.794)
0.090 (2.286)
TYP
0.180
(4.572)
MAX
0.070 (1.778)
0.020 (0.508)
LEAD NO. 1 IDENTIFIED BY DOT OR NOTCH.
CERDIP LEADS WILL BE EITHER TIN PLATED OR SOLDER DIPPED
IN ACCORDANCE WITH MIL-M-38510 REQUIREMENTS
SEATING
PLANE
28-Terminal
Plastic Leaded Chip Carrier
(P-28A)
4
PIN 1
IDENTIFIER
5
26
25
11
12
19
18
TOP VIEW
(PINS DOWN)
0.495 (12.57)
0.485 (12.32)
SQ
0.456 (11.58)
0.450 (11.43)
SQ
0.032 (0.812)
0.026 (0.661)
0.050 ⴞ 0.005
(1.27 ⴞ 0.13)
0.430 (10.5)
0.390 (9.9)
0.021 (0.533)
0.013 (0.331)
0.180 (4.51)
0.165 (4.20)
0.110 (2.79)
0.085 (2.16)