AD7245A Analog Devices, AD7245A Datasheet - Page 16
AD7245A
Manufacturer Part Number
AD7245A
Description
12-Bit DACPORT with Double-Buffered Parallel Input
Manufacturer
Analog Devices
Datasheet
1.AD7248A.pdf
(16 pages)
Specifications of AD7245A
Resolution (bits)
12bit
Dac Update Rate
143kSPS
Dac Settling Time
7µs
Max Pos Supply (v)
+16.5V
Single-supply
Yes
Dac Type
Voltage Out
Dac Input Format
Par
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AD7245A/AD7248A
Revision History
Location
Data Sheet changed from REV. A to REV. B.
Changed V
Changed A Version of Full-Scale Temperature Coefficient from ± 30 to ± 40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Changed B and T Versions of V
Change to Note 1 and Note 9 of Specifications table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Change to Note 2 in Switching Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Changes to R-24 Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
0.011 (0.275)
0.005 (0.125)
Changed B and T Versions of V
PIN 1
(3.175)
PIN 1
0.125
20
1
MIN
LEADS ARE SOLDER OR TIN-PLATED KOVAR OR ALLOY 42
DD
0.0500
(1.27)
BSC
0.021 (0.533)
0.015 (0.381)
0.5118 (13.00)
0.4961 (12.60)
20
1
= 15 V ± 5% to V
LEAD NO. 1 IDENTIFIED BY DOT OR NOTCH.
1.07 (27.18) MAX
0.022 (0.56)
0.014 (0.36)
0.021 (0.533)
0.015 (0.381)
20-Lead Plastic DIP
0.070 (1.77)
0.045 (1.15)
0.107 (2.72)
0.089 (2.26)
20-Lead SOIC
10
11
SEATING
PLANE
(N-20)
(R-20)
11
10
0.299 (7.60)
0.291 (7.40)
DD
DD
0.255 (6.477)
0.245 (6.223)
SS
0.145
(3.683)
MIN
0.419 (10.65)
0.404 (10.00)
Power Requirements from +11.4/+15.75 to +10.8/+16.5 for V min.
= 15 V ± 10% in Static Performance section in Test Conditions/Comments column . . . . . . . . 2
0.015 (0.38)
0.007 (0.18)
Power Requirements from –11.4/–15.75 to –10.8/–16.5 for V max . . . . . . . . . . . . . . . . . . . . . 2
15
0.32 (8.128)
0.29 (7.366)
0
MECHANICAL INFORMATION —AD7248A
0.011 (0.28)
0.009 (0.23)
8
0
0.125 (3.18)
0.18 (4.57)
Dimensions shown in inches and (mm).
OUTLINE DIMENSIONS
0.034 (0.86)
0.018 (0.46)
(1.143
0.045
0.14 (3.18)
0.20 (5.0)
0.125 (3.18)
0.15 (3.8)
LEADS ARE SOLDER OR TIN-PLATED KOVAR OR ALLOY 42
0.003
0.076)
PIN 1
0.020
(0.51)
MAX
20
0.016 (0.41)
LEAD NO. 1 IDENTIFIED BY DOT OR NOTCH.
0.02 (0.5)
1
Plastic Leaded Chip Carrier
(2.665
4
8
(9.905
0.105
0.390
9
(PINS DOWN)
3
TOP VIEW
0.935 (23.75)
IDENTIFIER
0.97 (24.64)
0.11 (2.79)
0.09 (2.28)
PIN 1
20-Lead Cerdip
0.015
0.375)
0.005
0.125)
20-Terminal
19
13
0.070 (1.78)
0.030 (0.76)
18
14
(P-20A)
(Q-20)
SQ
SQ
11
10
0.050
(1.27)
BSC
0.060 (1.52)
0.015 (0.38)
0.310 (7.87)
0.220 (5.59)
(4.385
0.173
SEATING
PLANE
(2.665
0.105
0.150
(3.81)
MIN
0.008
0.185)
0.015
0.375)
15°
0°
0.320 (8.13)
0.290 (7.37)
(0.737
(0.432
0.025
(0.64) MIN
0.029
0.020
(0.51) MIN
0.017
0.015 (0.38)
0.008 (0.20)
0.003
0.076)
0.004
0.101)
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