參數(shù)資料
型號： AD7937
廠商： Analog Devices, Inc.
英文描述： LC2MOS 8+4 Loading Dual 12-Bit DAC
中文描述： LC2MOS 8 4載入中雙12位DAC
文件頁數(shù)： 3/8頁
文件大?。?/td> 157K
代理商： AD7937
AD7937
–3–
REV. 0
TIMING CHARACTERISTICS
Limit at
T
A
= –40 C
to +85 C
Limit at
T
A
= 25 C
10
10
20
30
0
0
115
90
Parameter
Unit
Test Conditions/Comments
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
8
10
10
40
30
0
0
125
100
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
Address Valid to Write Setup Time
Address Valid to Write Hold Time
Data Setup Time
Data Hold Time
Chip Select or Update to Write Setup Time
Chip Select or Update to Write Hold Time
Write Pulsewidth
Clear Pulsewidth
Specifications subject to change without notice.
ABSOLUTE MAXIMUM RATINGS
*
(T
A
= 25
°
C unless otherwise noted)
V
DD
to DGND . . . . . . . . . . . . . . . . . . . . . . . . . .–0.3 V, +17 V
V
REFA
, V
REFB
to AGNDA, AGNDB . . . . . . . . . . . . . . . .
±
25 V
V
RFBA
, V
RFBB
to AGNDA, AGNDB . . . . . . . . . . . . . . . .
±
25 V
Digital Input Voltage to DGND . . . . . . . –0.3 V, V
DD
+0.3 V
I
OUTA
, I
OUTB
to DGND . . . . . . . . . . . . . . –0.3 V, V
DD
+0.3 V
AGNDA, AGNDB to DGND . . . . . . . . . –0.3 V, V
DD
+0.3 V
SOIC Package
θ
JA
, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 72
°
C/W
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . 300
°
C
IR Ref Low Peak Temperature . . . . . . . . . . . . . . . . . . 220
°
C
Operating Temperature Range
Industrial (A, B Versions) . . . . . . . . . . . . . –40
°
C to +85
°
C
Storage Temperature . . . . . . . . . . . . . . . . –65
°
C to +150
°
C
*
Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
t
1
t
5
t
6
t
2
t
3
t
4
t
7
t
8
5V
0V
5V
0V
5V
0V
5V
0V
5V
0V
A0
–
A1
DATA
CS
,
UPD
WR
CLR
NOTES
1. ALL INPUT SIGNAL RISE AND FALL TIMES MEASURED
FROM 10% TO 90% OF +5V. t
r
= t
f
= 20ns.
2. TIMING MEASUREMENT REFERENCE LEVELS IS
V
IH
+ V
IL
2
Figure 1. Timing Diagram
ORDERING GUIDE
Model
Temperature Range
–40
°
C to +85
°
C
–40
°
C to +85
°
C
Relative Accuracy
±
1 LSB
±
1/2 LSB
Gain Error
±
6 LSB
±
3 LSB
Package Description
Option
AD7937AR
AD7937BR
Small Outline
Small Outline
R-24
R-24
(V
DD
= 5 V 10%, V
REFA
= V
REFB
= 10 V; I
OUTA
= AGNDA = 0 V, I
OUTB
= AGNDB = 0 V.)
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the AD7937 features proprietary ESD protection circuitry, permanent damage may occur on
devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
相關(guān)PDF資料
PDF描述
AD7937AR LC2MOS 8+4 Loading Dual 12-Bit DAC
AD7937BR LC2MOS 8+4 Loading Dual 12-Bit DAC
AD7938 8-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer
AD7938BCP 8-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer
AD7938BSU 8-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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AD7937AR-REEL 功能描述:IC DAC 12BIT DUAL 8+4 24-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標準包裝:2,400 系列:- 設(shè)置時間:- 位數(shù):18 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:3 電壓電源:模擬和數(shù)字 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:36-TFBGA 供應(yīng)商設(shè)備封裝:36-TFBGA 包裝:帶卷 (TR) 輸出數(shù)目和類型:* 采樣率（每秒）:*
AD7937AR-REEL7 制造商:Analog Devices 功能描述:DAC 2CH R-2R 12-BIT 24SOIC W - Tape and Reel
AD7937BR 功能描述:IC DAC 12BIT DUAL 8+4 24-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標準包裝:2,400 系列:- 設(shè)置時間:- 位數(shù):18 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:3 電壓電源:模擬和數(shù)字 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:36-TFBGA 供應(yīng)商設(shè)備封裝:36-TFBGA 包裝:帶卷 (TR) 輸出數(shù)目和類型:* 采樣率（每秒）:*
AD7937BR-REEL 功能描述:IC DAC 12BIT DUAL 8+4 24-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標準包裝:2,400 系列:- 設(shè)置時間:- 位數(shù):18 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:3 電壓電源:模擬和數(shù)字 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:36-TFBGA 供應(yīng)商設(shè)備封裝:36-TFBGA 包裝:帶卷 (TR) 輸出數(shù)目和類型:* 采樣率（每秒）:*
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