参数资料
型号: AD5025BRUZ
厂商: Analog Devices Inc
文件页数: 23/28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 4 of 28
Parameter
B Grade1
A Grade1, 2
Unit
Conditions/Comments
Min
Typ
Max
Min
Typ
Max
LOGIC INPUTS
Input Current5
±1
μA
Input Low Voltage, VINL
0.8
V
Input High Voltage, VINH
2.2
V
Pin Capacitance4
4
pF
LOGIC OUTPUTS (SDO)3, 4
Output Low Voltage, VOL
0.4
V
ISINK = 2 mA
Output High Voltage, VOH
VDD 1
ISOURCE = 2 mA
High Impedance Leakage
±0.002
±1
±0.002
±1
μA
High Impedance Output
Capacitance
7
pF
POWER REQUIREMENTS
VDD
4.5
5.5
4.5
5.5
V
DAC active, excludes load current
Normal Mode
2.2
2.7
2.2
2.7
mA
VIH = VDD and VIL = GND
All Power-Down Modes7
0.4
2
0.4
2
μA
TA = 40°C to +105°C
30
μA
TA = 40°C to +125°C
1 Temperature range is 40°C to +125°C, typical at 25°C.
2 A grade offered in AD5065 only.
3 Linearity calculated using a reduced code range—AD5065: Code 512 to Code 65,024; AD5045: Code 128 to Code 16,256; AD5025: Code 32 to Code 4064. Output
unloaded.
4 Guaranteed by design and characterization; not production tested.
5 Current flowing into or out of individual digital pins.
6 Interface inactive. All DACs active. DAC outputs unloaded.
7 Both DACs powered down.
AC CHARACTERISTICS
VDD = 4.5 V to 5.5 V, RL = 5 kΩ to GND, CL = 200 pF to GND, 2.5 V ≤ VREFIN ≤ VDD. All specifications TMIN to TMAX, unless otherwise noted.
Table 3.
Parameter1
Min
Typ
Max
Unit
Conditions/Comments2
Output Voltage Settling Time
5.8
8
μs
to scale settling to ±1 LSB, RL = 5 kΩ single-channel update
including DAC calibration sequence
Output Voltage Settling Time
10.7
13
μs
to scale settling to ±1 LSB, RL = 5 kΩ all channel update including
DAC calibration sequence
Slew Rate
1.5
V/μs
Digital-to-Analog Glitch Impulse3
4
nV-sec
1 LSB change around major carry
Reference Feedthrough3
90
dB
VREF = 3 V ± 0.86 V p-p, frequency = 100 Hz to 100 kHz
SDO Feedthrough
0.07
nV-sec
Daisy-chain mode; SDO load is 10 pF
Digital Feedthrough3
0.1
nV-sec
Digital Crosstalk3
1.9
nV-sec
Analog Crosstalk3
1.2
nV-sec
DAC-to-DAC Crosstalk3
2.1
nV-sec
Multiplying Bandwidth3
340
kHz
VREF = 3 V ± 0.86 V p-p
Total Harmonic Distortion3
80
dB
VREF = 3 V ± 0.86 V p-p, frequency = 10 kHz
Output Noise Spectral Density
64
nV/√Hz
DAC code = 0x8400, 1 kHz
60
nV/√Hz
DAC code = 0x8400, 10 kHz
Output Noise
6
μV p-p
0.1 Hz to 10 Hz
1 Guaranteed by design and characterization; not production tested.
2 Temperature range is 40°C to + 125°C, typical at 25°C.
3 See the Terminology section.
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