AD5821AD-WAFER 查看數據表（PDF） - Analog Devices
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AD5821AD-WAFER Datasheet PDF : 16 Pages
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AD5821A
SPECIFICATIONS
VDD = 2.7 V to 5.5 V, AGND = DGND = 0 V, load resistance (RL) = 25 Ω connected to VDD. All specifications TMIN to TMAX, unless
otherwise noted.
Table 1.
Parameter
DC PERFORMANCE
Resolution
Relative Accuracy2
Differential Nonlinearity2, 3
Zero-Code Error2, 4
Offset Error @ Code 162
Gain Error2
Offset Error Drift4, 5
Gain Error Drift2, 5
B Version1
Min
Typ Max
10
±1.5 ±4
±1
0
0.5 1
0.5
±0.6
10
±0.2 ±0.5
Unit
Bits
LSB
LSB
mA
mA
% of FSR
μA/°C
LSB/°C
Test Conditions/Comments
VDD = 3.6 V to 4.5 V; device operates over 2.7 V to 5.5 V
with reduced performance
117 μA/LSB
Guaranteed monotonic over all codes
All 0s loaded to DAC
at 25°C
OUTPUT CHARACTERISTICS
Minimum Sink Current4
3
mA
Maximum Sink Current
120
mA
Output Current During XSHUTDOWN5
80
nA
Output Compliance5
0.6
VDD
V
Output Compliance5
0.48
VDD
V
Power-Up Time5
LOGIC INPUTS (XSHUTDOWN)5
Input Current
Input Low Voltage, VINL
Input High Voltage, VINH
Pin Capacitance
LOGIC INPUTS (SCL, SDA)5
Input Low Voltage, VINL
Input High Voltage, VINH
Input Low Voltage, VINL
Input High Voltage, VINH
Input Leakage Current, IIN
Input Hysteresis, VHYST
Digital Input Capacitance, CIN
Glitch Rejection6
POWER REQUIREMENTS
VDD
IDD (Normal Mode)
20
μs
±1
μA
0.54
V
1.26
V
3
pF
−0.3
1.26
−0.3
1.4
0.05 VDD
6
+0.54 V
VDD + 0.3 V
+0.54 V
VDD + 0.3 V
±1
μA
V
pF
50
ns
2.7
5.5
V
0.5 1
mA
IDD (Power-Down Mode)7
0.5
μA
XSHUTDOWN = 0
Output voltage range over which maximum 120 mA
sink current is available
Output voltage range over which 90 mA sink current
is available
To 10% of FS, coming out of power-down mode; VDD = 5 V
VDD = 2.7 V to 5.5 V
VDD = 2.7 V to 5.5 V
VDD = 2.7 V to 3.6 V
VDD = 2.7 V to 3.6 V
VDD = 3.6 V to 5.5 V
VDD = 3.6 V to 5.5 V
VIN = 0 V to VDD
Pulse width of spike suppressed
IDD specification is valid for all DAC codes;
VINH = 1.8 V, VINL = GND, VDD = 2.7 V to 3.6 V
VINH = 1.8 V, VINL = GND, VDD = 3 V
1 Temperature range for the B version is −30°C to +85°C.
2 See the Terminology section.
3 Linearity is tested using a reduced code range: Code 32 to Code 1023.
4 To achieve near zero output current, use the power-down feature.
5 Guaranteed by design and characterization; not production tested. XSHUTDOWN is active low. SDA and SCL pull-up resistors are tied to 1.8 V.
6 Input filtering on both the SCL and the SDA inputs suppress noise spikes that are less than 50 ns.
7 XSHUTDOWN is active low.
Rev. 0 | Page 3 of 16
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