參數(shù)資料
型號(hào): AD660BRZ-REEL
廠商: Analog Devices Inc
文件頁(yè)數(shù): 4/20頁(yè)
文件大小: 0K
描述: IC DAC 16BIT MONO W/VREF 24-SOIC
產(chǎn)品培訓(xùn)模塊: Data Converter Fundamentals
DAC Architectures
標(biāo)準(zhǔn)包裝: 1,000
系列: DACPORT®
設(shè)置時(shí)間: 6µs
位數(shù): 16
數(shù)據(jù)接口: 串行
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 模擬和數(shù)字,雙 ±
功率耗散(最大): 625mW
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 24-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 24-SOIC W
包裝: 帶卷 (TR)
輸出數(shù)目和類(lèi)型: 1 電壓,單極;1 電壓,雙極
采樣率(每秒): 167k
AD660
Rev. B | Page 12 of 20
It is also possible to use external references other than 10 V with
slightly degraded linearity specifications. The recommended
range of reference voltages is 5 V to 10.24 V, which allows 5 V,
8.192 V, and 10.24 V ranges to be used. For example, by using
the AD586 5 V reference, outputs of 0 V to 5 V unipolar or ±5 V
bipolar can be realized. Using the AD586 voltage reference
makes it possible to operate the AD660 with ±12 V supplies
with 10% tolerances.
Figure 12 shows the AD660 using the AD586 precision 5 V
reference in the bipolar configuration. The highest grade
AD586MN is specified with a drift of 2 ppm/°C, which is a
7.5× improvement over the AD660 internal reference. This
circuit includes two optional potentiometers and one optional
resistor that can be used to adjust the gain, offset, and bipolar
zero errors in a manner similar to that described in the Bipolar
Configuration section. Use 5.000000 V and +4.999847, as the
output values.
The AD660 can also be used with the AD587 10 V reference,
using the same configuration shown in Figure 12 to produce a
±10 V output. The highest grade AD587UQ is specified at
5 ppm/°C, which is a 3× improvement over the AD660 internal
reference.
Figure 13 shows the AD660 using the AD688 precision
±10 V reference, in the unipolar configuration. The highest
grade AD688BQ is specified with a temperature coefficient of
1.5 ppm/°C. The ±10 V output is also ideal for providing precise
biasing for the offset trim resistor, R4.
HBE
CONTROL
LOGIC
SER
CLR
LDAC
REF IN
GND
TRIM
VOUT
VIN
R1
50
R2
10k
R2
50
REF OUT
AD660
AD586
SOUT
VOUT
AGND
SPAN/
BIPOLAR
OFFSET
DGND
–VEE
+VCC
+VLL
10V REF
16-BIT LATCH
16-BIT DAC
16
17
18
19
23
24
20
21
22
13
1
2
3
4
15
01
81
3-
0
12
OUTPUT
6
5
4
2
10k
10.05k
DB1/DB9/
DATADIR
11
LBE/
CLEAR SELECT
DB0/
DB8/
SIN
CS
DB7/
DB15
5
12
14
16-BIT LATCH
Figure 12. Using the AD660 with the AD586 5 V Reference
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