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AD5381BST-3 데이터시트(PDF) 7 Page - Analog Devices

부품명 AD5381BST-3
상세설명  40-Channel, 3 V/5 V, Single-Supply, 12-Bit, Voltage Output DAC
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AD5381BST-3 데이터시트(HTML) 7 Page - Analog Devices

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AD5381
Rev. A | Page 7 of 36
Parameter
AD5381-31
Unit
Test Conditions/Comments
LOGIC OUTPUTS (BUSY, SDO)3
VOL, Output Low Voltage
0.4
V max
Sinking 200 µA
VOH, Output High Voltage
DVDD – 0.5
V min
Sourcing 200 µA
High Impedance Leakage Current
±1
µA max
SDO only
High Impedance Output Capacitance
5
pF typ
SDO only
LOGIC OUTPUT (SDA)3
VOL, Output Low Voltage
0.4
V max
ISINK = 3 mA
0.6
V max
ISINK = 6 mA
Three-State Leakage Current
±1
µA max
Three-State Output Capacitance
8
pF typ
POWER REQUIREMENTS
AVDD
2.7/3.6
V min/max
DVDD
2.7/5.5
V min/max
Power Supply Sensitivity3
∆Midscale/∆ΑVDD
–85
dB typ
AIDD
0.375
mA/channel max
Outputs unloaded, Boost off. 0.25 mA/channel typ
0.475
mA/channel max
Outputs unloaded, Boost on. 0.325 mA/channel typ
DIDD
1
mA max
VIH = DVDD, VIL = DGND
AIDD (Power-Down)
2
µA max
DIDD (Power-Down)
20
µA max
Power Dissipation
48
mW max
Outputs unloaded, Boost off, AVDD = DVDD = 3 V
1 AD5381-3 is calibrated using an external 1.25 V reference. Temperature range is –40°C to +85°C.
2 Accuracy guaranteed from VOUT = 10 mV to AVDD – 50 mV.
3 Guaranteed by characterization, not production tested.
4 Default on the AD5381-3 is 1.25 V. Programmable to 2.5 V via cr10 in the AD5381 control register; operating the AD5381-3 with a 2.5 V reference will lead to degraded
accuracy specifications and limited input code range.
AC CHARACTERISTICS1
Table 5. AVDD = 4.5 V to 5.5 V; DVDD = 2.7 V to 5.5 V; AGND = DGND = 0 V
Parameter
All
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
Output Voltage Settling Time
1/4 scale to 3/4 scale change settling to ±1 LSB.
6
µs typ
8
µs max
Slew Rate2
2
V/µs typ
Boost mode off, CR9 = 0
3
V/µs typ
Boost mode on, CR9 = 1
Digital-to-Analog Glitch Energy
12
nV-s typ
Glitch Impulse Peak Amplitude
15
mV typ
Channel-to-Channel Isolation
100
dB typ
See Terminology section
DAC-to-DAC Crosstalk
1
nV-s typ
See Terminology section
Digital Crosstalk
0.8
nV-s typ
Digital Feedthrough
0.1
nV-s typ
Effect of input bus activity on DAC output under test
Output Noise 0.1 Hz to 10 Hz
15
µV p-p typ
External reference, midscale loaded to DAC
40
µV p-p typ
Internal reference, midscale loaded to DAC
Output Noise Spectral Density
@ 1 kHz
150
nV/√Hz typ
@ 10 kHz
100
nV/√Hz typ
1 Guaranteed by design and characterization, not production tested.
2 Slew rate can be programmed via the current boost control bit in the AD5381 control register.


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