参数资料
型号: AD660
厂商: Analog Devices, Inc.
英文描述: Monolithic 16-Bit Serial/Byte DACPORT(16位单片D/A转换器)
中文描述: 单片16位串行/字节DACPORT(16位单片的D / A转换器)
文件页数: 12/12页
文件大小: 435K
代理商: AD660
AD660
REV. A
–12–
C
P
GROUNDING
The AD660 has two pins, designated analog ground (AGND)
and digital ground (DGND.) The analog ground pin is the
“high quality” ground reference point for the device. Any exter-
nal loads on the output of the AD660 should be returned to
analog ground. If an external reference is used, this should also
be returned to the analog ground.
If a single AD660 is used with separate analog and digital
ground planes, connect the analog ground plane to AGND and
the digital ground plane to DGND keeping lead lengths as short
as possible. Then connect AGND and DGND together at the
AD660. If multiple AD660s are used or the AD660 shares ana-
log supplies with other components, connect the analog and
digital returns together once at the power supplies rather than at
each chip. This single interconnection of grounds prevents large
ground loops and consequently prevents digital currents from
flowing through the analog ground.
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
N-24
24-Lead Plastic DIP
0.210
MAX
0.022 (0.558)
0.014 (0.356)
BSC
PIN 1
0.325 (8.25)
0.300 (7.62)
0.015 (0.381)
0.008 (0.204)
0.195 (4.95)
0.115 (2.93)
0.070 (1.77)
0.045 (1.15)
SEATING
PLANE
0.060 (1.52)
0.015 (0.38)
0.280 (7.11)
0.240 (6.10)
0.200 (5.05)
0.125 (3.18)
0.150
1.275 (32.30)
1.125 (28.60)
2
4
1
13
12
Q-24
24-Lead Cerdip
0.320 (8.13)
0.290 (7.37)
0.015 (0.38)
0.008 (0.20)
15
°
0
°
1.060 (26.92) MAX
0.200
(5.08)
MAX
0.023 (0.58)
0.014 (0.36)
0.200 (5.08)
0.125 (3.18)
0.100
(2.54)
BSC
0.070 (1.78)
0.030 (0.76)
0.060 (1.52)
0.015 (0.38)
0.150
(3.81)
MIN
SEATING
PLANE
0.005 (0.13) MIN
PIN 1
1
2
4
0.098 (2.49) MAX
0.310 (7.87)
0.220 (5.59)
12
1
3
R-24
24-Lead Small Outline (SOIC)
0.0125 (0.32)
0.0091 (0.23)
0.0500 (1.27)
0.0157 (0.40)
8
°
0
°
0.0291 (0.74)
°
PIN 1
0.2992 (7.60)
0.2914 (7.40)
0.4193 (10.65)
0.3937 (10.00)
13
12
1
24
0.0192 (0.49)
0.0138 (0.35)
(1.27)
BSC
0.1043 (2.65)
0.0926 (2.35)
0.6141 (15.60)
0.5985 (15.20)
0.0118 (0.30)
0.0040 (0.10)
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