AD7730L データシートの表示（PDF） - Analog Devices
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AD7730L Datasheet PDF : 53 Pages
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AD7730/AD7730L
Parameter
B Version1
LOGIC INPUTS
Input Current
All Inputs Except SCLK and MCLK IN
VINL, Input Low Voltage
VINL, Input Low Voltage
VINH, Input High Voltage
SCLK Only (Schmitt Triggered Input)
VT+
VT+
VT–
VT–
VT+ – VT–
VT+ – VT–
MCLK IN Only
VINL, Input Low Voltage
VINL, Input Low Voltage
VINH, Input High Voltage
VINH, Input High Voltage
LOGIC OUTPUTS (Including MCLK OUT)
VOL, Output Low Voltage
VOL, Output Low Voltage
VOH, Output High Voltage
VOH, Output High Voltage
Floating State Leakage Current
Floating State Output Capacitance2
± 10
0.8
0.4
2.0
1.4/3
1/2.5
0.8/1.4
0.4/1.1
0.4/0.8
0.4/0.8
0.8
0.4
3.5
2.5
0.4
0.4
4.0
VDD – 0.6 V
± 10
6
TRANSDUCER BURNOUT
AIN1(+) Current
AIN1(–) Current
Initial Tolerance @ 25°C
Drift2
–100
100
± 10
0.1
OFFSET (TARE) DAC
Resolution
LSB Size
DAC Drift16
DAC Drift vs. Time4, 16
Differential Linearity
6
2.3/2.6
2.5
25
–0.25/+0.75
SYSTEM CALIBRATION
Positive Full-Scale Calibration Limit17
1.05 × FS
Units
μA max
V max
V max
V min
V min to V max
V min to V max
V min to V max
V min to V max
V min to V max
V min to V max
V max
V max
V min
V min
V max
V max
V min
V min
μA max
pF typ
nA nom
nA nom
% typ
%/°C typ
Bit
mV min/mV max
ppm/°C max
ppm/1000 Hours typ
LSB max
V max
Negative Full-Scale Calibration Limit17
Offset Calibration Limit18
Input Span17
POWER REQUIREMENTS
Power Supply Voltages
AVDD – AGND Voltage
DVDD Voltage
Power Supply Currents
AVDD Current (Normal Mode)
AVDD Current (Normal Mode)
DVDD Current (Normal Mode)
DVDD Current (Normal Mode)
AVDD + DVDD Current (Standby Mode)
Power Dissipation
Normal Mode
Standby Mode
–1.05 × FS
–1.05 × FS
0.8 × FS
2.1 × FS
V max
V max
V min
V max
+4.75 to +5.25 V min to V max
+2.7 to +5.25 V min to V max
10.3
mA max
22.3
mA max
1.3
mA max
2.7
mA max
25
μA max
65
mW max
125
mW max
125
μW max
Conditions/Comments
DVDD = +5 V
DVDD = +3 V
DVDD = +5 V
DVDD = +3 V
DVDD = +5 V
DVDD = +3 V
DVDD = +5 V
DVDD = +3 V
DVDD = +5 V
DVDD = +3 V
DVDD = +5 V
DVDD = +3 V
ISINK = 800 μA Except for MCLK OUT14;
VDD15 = +5 V
ISINK = 100 μA Except for MCLK OUT14;
VDD15 = +3 V
ISOURCE = 200 μA Except for MCLK OUT14;
VDD15 = +5 V
ISOURCE = 100 μA Except for MCLK OUT14;
VDD15 = +3 V
2.5 mV Nominal with 5 V Reference (REF IN/2000)
Guaranteed Monotonic
FS Is the Nominal Full-Scale Voltage
(10 mV, 20 mV, 40 mV or 80 mV)
With AGND = 0 V
External MCLK. Digital I/Ps = 0 V or DVDD
All Input Ranges Except 0 mV to +10 mV and ± 10 mV
Input Ranges of 0 mV to +10 mV and ± 10 mV Only
DVDD of 2.7 V to 3.3 V
DVDD of 4.75 V to 5.25 V
Typically 10 μA. External MCLK IN = 0 V or DVDD
AVDD = DVDD = +5 V. Digital I/Ps = 0 V or DVDD
All Input Ranges Except 0 mV to +10 mV and ± 10 mV
Input Ranges of 0 mV to +10 mV and ± 10 mV Only
Typically 50 μW. External MCLK IN = 0 V or DVDD
REV. B
–3–
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