ADUC814BRU 查看數據表（PDF） - Analog Devices
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ADUC814BRU Datasheet PDF : 72 Pages
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Parameter
TEMPERATURE MONITOR9
Voltage Output at 25ºC
Voltage TC
Accuracy
Accuracy
DAC CHANNEL SPECIFICATIONS
DC ACCURACY10
Resolution
Relative Accuracy
Differential Nonlinearity11
Offset Error
Gain Error
Gain Error Mismatch
ANALOG OUTPUTS
Voltage Range_0
Voltage Range_1
Output Impedance
ISINK
DAC AC Specifications
Voltage Output Settling Time
VDD = 5 V
650
–2
3
1.5
12
+3
–1
1/2
50
1
1
0.5
0 to VREF
0 to VDD
0.5
50
15
Digital-to-Analog Glitch Energy
10
REFERENCE INPUT/OUTPUT
REFERENCE OUTPUT
Output Voltage (VREF)
2.5
Accuracy
2.5
Power Supply Rejection
47
Reference Tempco
100
Internal VREF Power-On Time12
80
EXTERNAL REFERENCE INPUT13
Voltage Range (VREF)14
Input Impedance
Input Leakage
POWER SUPPLY MONITOR (PSM)
VDD Trip Point Selection Range
VDD Power Supply Trip Point Accuracy
WATCH DOG TIMER (WDT)14
Timeout Period
LOGIC INPUTS
INPUT VOLTAGES14
All Inputs except SCLOCK, RESET, and
XTAL1
VINL, Input Low Voltage
VINH, Input High Voltage
1.0
VDD
20
10
2.63
2.93
3.08
4.63
3.5
0
2000
0.8
2.0
VDD = 3 V
650
–2
3
1.5
Unit
mV typ
mV/ºC typ
ºC typ
ºC typ
12
Bits
+3
LSB typ
–1
LSB max
1/2
LSB typ
50
mV max
1
% max
1
% typ
0.5
% typ
Volts
Volts
0.5
Ω typ
50
µA typ
15
µs typ
10
nVs typ
2.5
2.5
57
100
80
1.0
VDD
20
10
2.63
2.93
3.08
3.5
0
2000
V
% max
dB typ
ppm/ºC typ
ms typ
V min
V max
kΩ typ
µA max
V
V
V
V
% max
ms min
ms max
0.4
V max
2.0
V min
Test Conditions
ADuC814
2.5 V internal reference
2.5 V external reference
DAC Load to AGND RL = 10 kΩ, CL = 100 pF
Guaranteed montonic
VREF range
VREF range
AVDD range
Of full scale on DAC1
DAC VREF = 2.5 V
DAC VREF = VDD
Full-scale settling time to within ½ LSB of final
value
1 LSB change at major carry
Of VREF measured at the CREF pin
Internal band gap reference deselected via
ADCCON2.6
Four trip points selectable in this range
programmed via TP1–0 in PSMCON
Nine time-out periods selectable in this range
programmed via PRE3–0 in WDCON
Rev. A | Page 5 of 72
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