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參數(shù)資料
| 型號： | AD7226BQ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | LC2MOS Quad 8-Bit D/A Converter |
| 中文描述： | PARALLEL, 8 BITS INPUT LOADING, 3 us SETTLING TIME, 8-BIT DAC, CDIP20 |
| 封裝： | CERAMIC, DIP-20 |
| 文件頁數(shù)： | 4/12頁 |
| 文件大?。?/td> | 247K |
| 代理商： | AD7226BQ |
AD7226
REV. A
–4–
ABSOLUT E MAX IMUM RAT INGS*
V
DD
to AGND . . . . . . . . . . . . . . . . . . . . . . . . . .–0.3 V, +17 V
V
DD
to DGND . . . . . . . . . . . . . . . . . . . . . . . . . .–0.3 V, +17 V
V
SS
to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –7 V, V
DD
V
SS
to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –7 V, V
DD
V
DD
to V
SS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .–0.3 V, +24 V
AGND to DGND . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V, V
DD
Digital Input Voltage to DGND . . . . . . . –0.3 V, V
DD
+ 0.3 V
V
REF
to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V, V
DD
V
OUT
to AGND
1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . V
SS
, V
DD
Power Dissipation (Any Package) to +75
°
C . . . . . . . . 500 mW
Derates above 75
°
C by . . . . . . . . . . . . . . . . . . . . . 2.0 mW/
°
C
Operating T emperature
Commercial (K Version) . . . . . . . . . . . . . . –40
°
C to +85
°
C
Industrial (B Version) . . . . . . . . . . . . . . . . –40
°
C to +85
°
C
Extended (T Version) . . . . . . . . . . . . . . . –55
°
C to +125
°
C
Storage T emperature . . . . . . . . . . . . . . . . . . –65
°
C to +150
°
C
Lead T emperature (Soldering, 10 secs) . . . . . . . . . . . +300
°
C
NOT ES
*Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. T his is a stress rating only and 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.
1
Outputs may be shorted to AGND provided that the power dissipation of the
package is not exceeded. T ypically short circuit current to AGND is 60 mA.
WARNING!
ESD SENSITIVE DEVICE
C AUT ION
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 AD7226 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. T herefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
PIN CONFIGURAT IONS
LC C C
DIP and SOIC
PLC C
T E RMINOLOGY
T OT AL UNADJUST E D E RROR
T his is a comprehensive specification which includes full-scale
error, relative accuracy and zero code error. Maximum output
voltage is V
REF
– 1 LSB (ideal), where 1 LSB (ideal) is V
REF
/
256. T he LSB size will vary over the V
REF
range. Hence the zero
code error will, relative to the LSB size, increase as V
REF
de-
creases. Accordingly, the total unadjusted error, which includes
the zero code error, will also vary in terms of LSB’s over the
V
REF
range. As a result, total unadjusted error is specified for a
fixed reference voltage of +10 V.
RE LAT IVE ACCURACY
Relative Accuracy or endpoint nonlinearity, is a measure of the
maximum deviation from a straight line passing through the
endpoints of the DAC transfer function. It is measured after al-
lowing for zero and full-scale error and is normally expressed in
LSB’s or as a percentage of full-scale reading.
DIFFE RE NT IAL NONLINE ARIT Y
Differential Nonlinearity is the difference between the measured
change and the ideal 1 LSB change between any two adjacent
codes. A specified differential nonlinearity of
±
1 LSB max over
the operating temperature range ensures monotonicity.
DIGIT AL CROSST ALK
T he glitch impulse transferred to the output of one converter
due to a change in the digital input code to another of the con-
verters. It is specified in nV secs and is measured at V
REF
= 0 V.
FULL SCALE E RROR
Full-Scale Error is defined as:
Measured Value – Zero Code Error – Ideal Value
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| AD7226BRSZ | 功能描述:IC DAC 8BIT QUAD W/AMP 20SSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 設(shè)置時間:4.5µs 位數(shù):12 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOICN 包裝:剪切帶 (CT) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:* 其它名稱:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND |
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