参数资料
型号: AD5025BRUZ
厂商: Analog Devices Inc
文件页数: 22/28页
文件大小: 0K
描述: IC DAC DUAL 12BIT SPI 14TSSOP
产品培训模块: Data Converter Fundamentals
DAC Architectures
标准包装: 96
系列: nanoDAC™
设置时间: 5.8µs
位数: 12
数据接口: 串行,SPI?
转换器数目: 2
电压电源: 单电源
功率耗散(最大): 13.5mW
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 14-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 14-TSSOP
包装: 管件
输出数目和类型: 2 电压,单极;2 电压,双极
采样率(每秒): *
产品目录页面: 781 (CN2011-ZH PDF)
AD5025/AD5045/AD5065
Rev. 0 | Page 3 of 28
SPECIFICATIONS
VDD = 4.5 V to 5.5 V, RL = 5 kΩ to GND, CL = 200 pF to GND, 2.5 V ≤ VREFIN ≤ VDD, unless otherwise specified. All specifications TMIN to
TMAX, unless otherwise noted.
Table 2.
Parameter
B Grade1
A Grade1, 2
Unit
Conditions/Comments
Min
Typ
Max
Min
Typ
Max
STATIC PERFORMANCE3
Resolution
AD5065
16
Bits
AD5045
14
AD5025
12
Relative Accuracy
AD5065
±0.4
±1
±0.5
±4
LSB
TA = 40°C to +105°C
AD5065
+0.4
±2
±0.5
±4
TA = 40°C to +125°C
AD5045
±0.1
±0.5
LSB
TA = 40°C to +105°C
AD5045
±0.1
±1
TA = 40°C to +125°C
AD5025
±0.05
±0.25
LSB
TA = 40°C to +105°C
AD5025
±0.05
±0.5
TA = 40°C to +125°C
Differential Nonlinearity
±0.2
±1
±0.2
±1
LSB
Total Unadjusted Error
±0.2
±2.5
±0.2
±2.5
mV
VREF = 2.5 V; VDD = 5.5 V
Offset Error
±0.2
±1.8
±0.2
±1.8
mV
Code 512 (AD5065), Code 128 (AD5045),
Code 32 (AD5025) loaded to DAC register
Offset Error Drift4
±2
μV/°C
Full-Scale Error
±0.01
±0.07
±0.01
±0.07
% FSR
All 1s loaded to DAC register, VREF
< VDD
Gain Error
±0.005
±0.05
±0.005
±0.05
% FSR
Gain Temperature Coefficient4
±1
ppm
Of FSR/°C
DC Crosstalk4
40
μV
Due to single channel full-scale output
change, RL = 5 kΩ to GND or VDD
40
μV/mA
Due to load current change
40
μV
Due to powering down (per channel)
OUTPUT CHARACTERISTICS4
Output Voltage Range
0
VDD
0
VDD
V
Capacitive Load Stability
1
nF
RL = 5 kΩ, RL = 100 kΩ, and RL = ∞
DC Output Impedance
Normal Mode
0.5
Ω
Power-Down Mode
Output Connected to
100 kΩ Network
100
Output impedance tolerance ± 400 Ω
Output Connected to
1 kΩ Network
1
Output impedance tolerance ± 20 Ω
Short-Circuit Current
60
mA
DAC = full scale, output shorted to GND
45
mA
DAC = zero-scale, output shorted to VDD
Power-Up Time
4.5
μs
Time to exit power-down mode to
normal mode of AD5024/AD5044/
AD5064, 32nd clock edge to 90% of DAC
midscale value, output unloaded
DC PSRR
92
dB
VDD ± 10%, DAC = full scale, VREF <
VDD
REFERENCE INPUTS
Reference Input Range
2.2
VDD
2.2
VDD
V
Reference Current
35
50
35
50
μA
Per DAC channel
Reference Input Impedance
120
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