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AD5678 Datasheet(PDF) 3 Page - Analog Devices

Part No. AD5678
Description  On-Chip Reference in 14-Lead TSSOP
Download  28 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5678 Datasheet(HTML) 3 Page - Analog Devices

 
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AD5678
Rev. C | Page 3 of 28
SPECIFICATIONS
VDD = 4.5 V to 5.5 V, RL = 2 kΩ to GND, CL = 200 pF to GND, VREFIN = VDD. All specifications TMIN to TMAX, unless otherwise noted.
Table 1.
A Grade1
B Grade1
Parameter
Min
Typ
Max
Min
Typ
Max
Unit
Conditions/Comments
STATIC PERFORMANCE2
AD5678 (DAC C, D, E, F)
Resolution
12
12
Bits
Relative Accuracy
±0.5
±2
±0.5
±1
LSB
See Figure 11
Differential Nonlinearity
±0.25
±0.25
LSB
Guaranteed monotonic by design
(see Figure 12)
AD5678 (DAC A, B, G, H)
Resolution
16
16
Bits
Relative Accuracy
±8
±32
±8
±16
LSB
See Figure 5
Differential Nonlinearity
±1
±1
LSB
Guaranteed monotonic by design (see Figure 6)
Zero-Code Error
6
19
6
19
mV
All 0s loaded to DAC register (see Figure 17)
Zero-Code Error Drift
±2
±2
μV/°C
Full-Scale Error
−0.2
−1
−0.2
−1
% FSR
All 1s loaded to DAC register (see Figure 18)
Gain Error
±1
±1
% FSR
Gain Temperature
Coefficient
±2.5
±2.5
ppm
Of FSR/°C
Offset Error
±6
±19
±6
±19
mV
DC Power Supply Rejection
Ratio
–80
–80
dB
VDD ± 10%
DC Crosstalk
(External Reference)
10
10
μV
Due to full-scale output change,
RL = 2 kΩ to GND or VDD
5
5
μV/mA
Due to load current change
10
10
μV
Due to powering down (per channel)
DC Crosstalk
(Internal Reference)
25
25
μV
Due to full-scale output change,
RL = 2 kΩ to GND or VDD
10
10
μV/mA
Due to load current change
OUTPUT CHARACTERISTICS3
Output Voltage Range
0
VDD
0
VDD
V
Capacitive Load Stability
2
2
nF
RL = ∞
10
10
nF
RL = 2 kΩ
DC Output Impedance
0.5
0.5
Ω
Short-Circuit Current
30
30
mA
VDD = 5 V
Power-Up Time
4
4
μs
Coming out of power-down mode; VDD = 5 V
REFERENCE INPUTS
Reference Input Voltage
VDD
VDD
V
±1% for specified performance
Reference Current
35
55
35
55
μA
VREF = VDD = 5.5 V (per DAC channel)
Reference Input Range
0
VDD
0
VDD
V
Reference Input Impedance
14.6
14.6
Per DAC channel
REFERENCE OUTPUT
Output Voltage
AD5678-2
2.495
2.505
2.495
2.505
V
At ambient
Reference TC3
±5
±10
±5
±10
ppm/°C
Reference Output Impedance
7.5
7.5
LOGIC INPUTS3
Input Current
±3
±3
μA
All digital inputs
Input Low Voltage, VINL
0.8
0.8
V
VDD = 5 V
Input High Voltage, VINH
2
2
V
VDD = 5 V
Pin Capacitance
3
3
pF


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