*ADDITIONAL PINS OMITTED FOR CLARITY +5V 8/10-BI" />
參數(shù)資料
型號: AD7836ASZ
廠商: Analog Devices Inc
文件頁數(shù): 4/12頁
文件大?。?/td> 0K
描述: IC DAC 14BIT QUAD LC2MOS 44MQFP
產(chǎn)品培訓(xùn)模塊: Data Converter Fundamentals
DAC Architectures
標(biāo)準(zhǔn)包裝: 1
設(shè)置時間: 16µs
位數(shù): 14
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 4
電壓電源: 模擬和數(shù)字,雙 ±
功率耗散(最大): 460mW
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 44-QFP
供應(yīng)商設(shè)備封裝: 44-MQFP(10x10)
包裝: 托盤
輸出數(shù)目和類型: 4 電壓,單極;4 電壓,雙極
采樣率(每秒): 62.5k
AD7836
–12–
REV. A
C2163a
0
9/99
PRINTED
IN
U.S.A.
*ADDITIONAL PINS OMITTED FOR CLARITY
+5V
8/10-BIT
DAC
VDD
GND
–5V
LOGIC LEVEL
SHIFT
GND
SCLK
SDATA
CONTROLLER
DATA BUS
SCLK
DIN
FSIN/CS
ADDR BUS
0V to -5V
0V to 5V
8/10-BIT
DAC
SCLK
DIN
FSIN/CS
ADDR
DECODER
VREF(+)A
VREF(–) A
AD7836
*
VOUTA
AGND
VOUT
DATA BUS
A0,A1,A2
Figure 22. Programmable Reference Generation for the AD7836
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
44-Lead MQFP (S-44)
0.548 (13.925)
0.546 (13.875)
0.033 (0.84)
0.029 (0.74)
0.016 (0.41)
0.012 (0.30)
TOP VIEW
(PINS DOWN)
1
33
34
44
11
12
23
22
0.398 (10.11)
0.390 (9.91)
0.083 (2.11)
0.077 (1.96)
0.040 (1.02)
0.032 (0.81)
0.040 (1.02)
0.032 (0.81)
SEATING
PLANE
0.096 (2.44)
MAX
0.037 (0.94)
0.025 (0.64)
8
0.8
these DACs can be operated with supplies of 0 V and a –5 V,
with the VDD pin connected to 0 V and the GND pin connected
to –5 V. Now these can be used to provide the negative refer-
ence voltages for the VREF(–) inputs on the AD7836. However,
the digital signals driving the DACs need to be level shifted
from the 0 V to +5 V range to the –5 V to 0 V range. Figure 22
shows a typical application circuit to provide programmable ref-
erence capabilities for the AD7836.
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