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AD5302 bảng dữ liệu(PDF) 2 Page - Analog Devices

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Giải thích chi tiết về linh kiện  2.5 V to 5.5 V, 500 uA, Parallel Interface Quad Voltage-Output 8-/10-/12-Bit DACs
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REV. 0
–2–
AD5334/AD5335/AD5336/AD5344–SPECIFICATIONS
(VDD = 2.5 V to 5.5 V, VREF = 2 V. RL = 2 k
to GND; CL =200 pF to GND; all specifications TMIN to TMAX unless otherwise noted.)
B Version
2
Parameter
1
Min
Typ
Max
Unit
Conditions/Comments
DC PERFORMANCE
3, 4
AD5334
Resolution
8
Bits
Relative Accuracy
±0.15
±1
LSB
Differential Nonlinearity
±0.02
±0.25
LSB
Guaranteed Monotonic By Design Over All Codes
AD5335/AD5336
Resolution
10
Bits
Relative Accuracy
±0.5
±4
LSB
Differential Nonlinearity
±0.05
±0.5
LSB
Guaranteed Monotonic By Design Over All Codes
AD5344
Resolution
12
Bits
Relative Accuracy
±2
±16
LSB
Differential Nonlinearity
±0.2
±1
LSB
Guaranteed Monotonic By Design Over All Codes
Offset Error
±0.4
±3
% of FSR
Gain Error
±0.1
±1
% of FSR
Lower Deadband
5
10
60
mV
Lower Deadband Exists Only if Offset Error Is Negative
Upper Deadband
10
60
mV
VDD = 5 V. Upper Deadband Exists Only if VREF = VDD
Offset Error Drift
6
–12
ppm of FSR/
°C
Gain Error Drift
6
–5
ppm of FSR/
°C
DC Power Supply Rejection Ratio6
–60
dB
∆V
DD =
±10%
DC Crosstalk
6
200
µVRL = 2 kΩ to GND, 2 kΩ to VDD; CL = 200 pF to GND;
Gain = 0
DAC REFERENCE INPUT
6
VREF Input Range
0.25
VDD
V
VREF Input Impedance
180
k
Gain = 1. Input Impedance = RDAC (AD5336/AD5344)
90
k
Gain = 2. Input Impedance = RDAC (AD5336)
90
k
Gain = 1. Input Impedance = RDAC (AD5334/AD5335)
45
k
Gain = 2. Input Impedance = RDAC (AD5334)
Reference Feedthrough
–90
dB
Frequency = 10 kHz
Channel-to-Channel Isolation
–90
dB
Frequency = 10 kHz
OUTPUT CHARACTERISTICS
6
Minimum Output Voltage
4, 7
0.001
V min
Rail-to-Rail Operation
Maximum Output Voltage
4, 7
VDD – 0.001
V max
DC Output Impedance
0.5
Short Circuit Current
50
mA
VDD = 5 V
20
mA
VDD = 3 V
Power-Up Time
2.5
µs
Coming Out of Power-Down Mode. VDD = 5 V
5
µs
Coming Out of Power-Down Mode. VDD = 3 V
LOGIC INPUTS
6
Input Current
±1
µA
VIL, Input Low Voltage
0.8
V
VDD = 5 V
± 10%
0.6
V
VDD = 3 V
± 10%
0.5
V
VDD = 2.5 V
VIH, Input High Voltage
2.4
V
VDD = 5 V
± 10%
2.1
V
VDD = 3 V
± 10%
2.0
V
VDD = 2.5 V
Pin Capacitance
3.5
pF
POWER REQUIREMENTS
VDD
2.5
5.5
V
IDD (Normal Mode)
All DACs active and excluding load currents.
VDD = 4.5 V to 5.5 V
600
900
µAVIH = VDD, VIL = GND.
VDD = 2.5 V to 3.6 V
500
700
µAI
DD increases by 50
µA at V
REF > VDD – 100 mV.
IDD (Power-Down Mode)
VDD = 4.5 V to 5.5 V
0.2
1
µA
VDD = 2.5 V to 3.6 V
0.08
1
µA
NOTES
1See Terminology section.
2Temperature range: B Version: –40
°C to +105°C; typical specifications are at 25°C.
3Linearity is tested using a reduced code range: AD5334 (Code 8 to 255); AD5335/AD5336 (Code 28 to 1023); AD5344 (Code 115 to 4095).
4DC specifications tested with outputs unloaded.
5This corresponds to x codes. x = Deadband voltage/LSB size.
6Guaranteed by design and characterization, not production tested.
7In order for the amplifier output to reach its minimum voltage, Offset Error must be negative. In order for the amplifier output to reach its maximum voltage, V
REF = VDD and
“Offset plus Gain” Error must be positive.
Specifications subject to change without notice.


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