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參數(shù)資料
型號(hào): AD7849BR
廠商: Analog Devices Inc
文件頁數(shù): 15/20頁
文件大?。?/td> 0K
描述: IC DAC 14/16BIT SRL-IN 20-SOIC
產(chǎn)品培訓(xùn)模塊: Data Converter Fundamentals
DAC Architectures
標(biāo)準(zhǔn)包裝: 37
設(shè)置時(shí)間: 7µs
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): 100mW
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 20-SOIC W
包裝: 管件
輸出數(shù)目和類型: 1 電壓,單極;1 電壓,雙極
采樣率(每秒): 143k
AD7849
Rev. C | Page 4 of 20
Parameter
A Version
B Version
C Version
Unit
Test Conditions/Comments
DIGITAL INPUTS
Input High Voltage, VINH
2.4
V min
Input Low Voltage, VINL
0.8
V max
Input Current, IINH
±10
μA max
Input Capacitance, CIN
10
pF max
DIGITAL OUTPUTS
Output Low Voltage, VOL
0.4
V max
ISINK = 1.6 mA
Output High Voltage, VOH
4.0
V min
ISOURCE = 400 μA
Floating State Leakage Current
±10
μA max
Floating State Output
Capacitance
10
pF max
POWER REQUIREMENTS2
VDD
14.25/15.75
V min/V max
VSS
14.25/15.75
V min/V max
VCC
4.75/5.25
V min/V max
IDD
5
mA max
VOUT unloaded, VINH = VDD – 0.1 V,
VINL = 0.1 V
ISS
5
mA max
VOUT unloaded, VINH = VDD – 0.1 V,
VINL = 0.1 V
ICC
2.5
mA max
VINH = VDD – 0.1 V, VINL = 0.1 V
Power Supply Sensitivity3
1.5
LSB/V max
Power Dissipation
100
mW typ
VOUT unloaded
1 Guaranteed by design and characterization, not production tested.
2 The AD7849 is functional with power supplies of ±12 V. See the Typical Performance Characteristics section.
3 Sensitivity of gain error, offset error, and bipolar zero error to VDD, VSS variations.
RESET SPECIFICATIONS
These specifications apply when the device goes into reset mode during power-up or power-down sequence. VOUT unloaded.
Table 2.
Parameter
All Versions
Unit
Test Conditions/Comments
VA,1 Low Threshold Voltage for VDD, VSS
1.2
V max
This is the lower VDD/VSS threshold voltage for the reset function.
0
V typ
Above this, the reset is activated.
VB, High Threshold Voltage for VDD, VSS
9.5
V max
This is the higher VDD/VSS threshold voltage for the reset function.
6.4
V min
Below this, the reset is activated. Typically, 8 V.
VC, Low Threshold Voltage for VCC
1
V max
This is the lower VCC threshold voltage for the reset function.
0
V typ
Above this, the reset is activated.
VD, High Threshold Voltage for VCC
4
V max
This is the higher VCC threshold voltage for the reset function.
2.5
V min
Below this, the reset is activated. Typically, 3 V.
G2 RON
1
kΩ typ
On resistance of G2; VDD = 2 V; VSS = 2 V; IG2 = 1 mA.
1 A pull-down resistor (65 kΩ) on VOUT maintains 0 V output when VDD/VSS is below VA.
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