AD7821

REV. B

–14–

OUTLINE DIMENSIONS

20-Lead Plastic Dual-in-Line Package [PDIP]

(N-20)

Dimensions shown in inches and (millimeters)

20

1

10

11

0.985 (25.02)

0.965 (24.51)

0.945 (24.00)

0.295 (7.49)

0.285 (7.24)

0.275 (6.99)

0.150 (3.81)

0.135 (3.43)

0.120 (3.05)

0.015 (0.38)

0.010 (0.25)

0.008 (0.20)

0.325 (8.26)

0.310 (7.87)

0.300 (7.62)

SEATING

PLANE

0.015 (0.38) MIN

0.180 (4.57)

MAX

0.022 (0.56)

0.018 (0.46)

0.014 (0.36)

0.150 (3.81)

0.130 (3.30)

0.110 (2.79)

0.100

(2.54)

BSC

0.060 (1.52)

0.050 (1.27)

0.045 (1.14)

CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS

(IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR

REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN

COMPLIANT TO JEDEC STANDARDS MO-095-AE

20-Lead Ceramic DIP - Glass Hermetic Seal [CERDIP]

(Q-20)

Dimensions shown in inches and (millimeters)

20

110

11

0.310 (7.87)

0.220 (5.59)

PIN 1

0.005

(0.13)

MIN

0.098 (2.49)

MAX

15

0

0.320 (8.13)

0.290 (7.37)

0.015 (0.38)

0.008 (0.20)

SEATING

PLANE

0.200 (5.08)

MAX

1.060 (26.92) MAX

0.150 (3.81)

MIN

0.200 (5.08)

0.125 (3.18)

0.023 (0.58)

0.014 (0.36)

0.100

(2.54)

BSC

0.070 (1.78)

0.030 (0.76)

0.060 (1.52)

0.015 (0.38)

CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETERS DIMENSIONS

(IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR

REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN

20-Terminal Ceramic Leaded Chip Carrier [LCC]

(E-20A)

Dimensions shown in millimeters and (inches)

1

20

4

9

8

13

19

14

3

18

BOTTOM

VIEW

0.71 (0.0278)

0.56 (0.0220)

45 TYP

0.38 (0.0150)

MIN

1.40 (0.0551)

1.14 (0.0449)

1.27 (0.0500)

BSC

1.91 (0.0752)

REF

0.28 (0.0110)

0.18 (0.0071)

R TYP

2.41 (0.0949)

1.90 (0.0748)

2.54 (0.1000) BSC

5.08 (0.2000)

BSC

3.81 (0.1500)

BSC

1.91

(0.0752)

REF

9.09 (0.3579)

8.69 (0.3421)

SQ

9.09

(0.3579)

MAX

SQ

2.54 (0.1000)

1.63 (0.0642)

2.24 (0.0882)

1.37 (0.0539)

20-Lead Standard Small Outline Package [SOIC]

Wide Body

(RW-20)

Dimensions shown in millimeters and (inches)

CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS

(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR

REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN

COMPLIANT TO JEDEC STANDARDS MS-013AC

0.75 (0.0295)

0.25 (0.0098)

20

11

10

1

0.32 (0.0126)

0.23 (0.0091)

8

0

45

1.27 (0.0500)

0.40 (0.0157)

SEATING

PLANE

0.30 (0.0118)

0.10 (0.0039)

0.51 (0.0201)

0.33 (0.0130)

2.65 (0.1043)

2.35 (0.0925)

1.27

(0.0500)

BSC

10.65 (0.4193)

10.00 (0.3937)

7.60 (0.2992)

7.40 (0.2913)

13.00 (0.5118)

12.60 (0.4961)

COPLANARITY

0.10