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AD7730LBRUZ-REEL датащи(PDF) 3 Page - Analog Devices

номер детали AD7730LBRUZ-REEL
подробное описание детали  Bridge Transducer ADC
Download  53 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD7730LBRUZ-REEL датащи(HTML) 3 Page - Analog Devices

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


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