B Version1 Units Conditions/Comments STATIC PERFORMANCE (CHP = 1) No Mis" />
參數資料
型號: AD7730LBRZ-REEL
廠商: Analog Devices Inc
文件頁數: 12/53頁
文件大?。?/td> 0K
描述: IC ADC TRANSDUCER BRIDGE 24SOIC
標準包裝: 1,000
位數: 24
通道數: 1
功率(瓦特): 125mW
電壓 - 電源,模擬: 4.75 V ~ 5.25 V
電壓 - 電源,數字: 2.7 V ~ 5.25 V
封裝/外殼: 24-SOIC(0.295",7.50mm 寬)
供應商設備封裝: 24-SOIC W
包裝: 帶卷 (TR)
配用: EVAL-AD7730LEBZ-ND - BOARD EVALUATION FOR AD7730
EVAL-AD7730EBZ-ND - BOARD EVAL FOR AD7730
–2–
Parameter
B Version1
Units
Conditions/Comments
STATIC PERFORMANCE (CHP = 1)
No Missing Codes2
24
Bits min
Output Noise and Update Rates2
See Tables I & II
Integral Nonlinearity
18
ppm of FSR max
Offset Error2
See Note 3
Offset Error and Offset Drift Refer to Both
Offset Drift vs. Temperature2
5
nV/
°C typ
Unipolar Offset and Bipolar Zero Errors
Offset Drift vs. Time4
25
nV/1000 Hours typ
Positive Full-Scale Error2, 5
See Note 3
Positive Full-Scale Drift vs Temp2, 6, 7
2
ppm of FS/
°C max
Positive Full-Scale Drift vs Time4
10
ppm of FS/1000 Hours typ
Gain Error2, 8
See Note 3
Gain Drift vs. Temperature2, 6, 9
2
ppm/
°C max
Gain Drift vs. Time4
10
ppm/1000 Hours typ
Bipolar Negative Full-Scale Error2
See Note 3
Negative Full-Scale Drift vs. Temp2, 6
2
ppm of FS/
°C max
Power Supply Rejection
120
dB typ
Measured with Zero Differential Voltage
Common-Mode Rejection (CMR)
120
dB min
At DC. Measured with Zero Differential Voltage
Analog Input DC Bias Current2
50
nA max
Analog Input DC Bias Current Drift2
100
pA/
°C typ
Analog Input DC Offset Current2
10
nA max
Analog Input DC Offset Current Drift2
50
pA/
°C typ
STATIC PERFORMANCE (CHP = 0)2
No Missing Codes
24
Bits min
SKIP = 010
Output Noise and Update Rates
See Tables III & IV
Integral Nonlinearity
18
ppm of FSR max
Offset Error
See Note 3
Offset Error and Offset Drift Refer to Both
Offset Drift vs. Temperature6
0.5
μV/°C typ
Unipolar Offset and Bipolar Zero Errors
Offset Drift vs. Time4
2.5
μV/1000 Hours typ
Positive Full-Scale Error5
See Note 3
Positive Full-Scale Drift vs. Temp6, 7
0.6
μV/°C typ
Positive Full-Scale Drift vs. Time4
3
μV/1000 Hours typ
Gain Error8
See Note 3
Gain Drift vs. Temperature6, 9
2
ppm/
°C typ
Gain Drift vs. Time4
10
ppm/1000 Hours typ
Bipolar Negative Full-Scale Error
See Note 3
Negative Full-Scale Drift vs. Temp
0.6
μV/°C typ
Power Supply Rejection
90
dB typ
Measured with Zero Differential Voltage
Common-Mode Rejection (CMR) on AIN 100
dB typ
At DC. Measured with Zero Differential Voltage
CMR on REF IN
120
dB typ
At DC. Measured with Zero Differential Voltage
Analog Input DC Bias Current
60
nA max
Analog Input DC Bias Current Drift
150
pA/
°C typ
Analog Input DC Offset Current
30
nA max
Analog Input DC Offset Current Drift
100
pA/
°C typ
ANALOG INPUTS/REFERENCE INPUTS
Normal-Mode 50 Hz Rejection2
88
dB min
From 49 Hz to 51 Hz
Normal-Mode 60 Hz Rejection2
88
dB min
From 59 Hz to 61 Hz
Common-Mode 50 Hz Rejection2
120
dB min
From 49 Hz to 51 Hz
Common-Mode 60 Hz Rejection2
120
dB min
From 59 Hz to 61 Hz
Analog Inputs
Differential Input Voltage Ranges11
Assuming 2.5 V or 5 V Reference with
HIREF Bit Set Appropriately
0 to +10 or
±10
mV nom
Gain = 250
0 to +20 or
±20
mV nom
Gain = 125
0 to +40 or
±40
mV nom
Gain = 62.5
0 to +80 or
±80
mV nom
Gain = 31.25
Absolute/Common-Mode Voltage12
AGND + 1.2 V
V min
AVDD – 0.95 V
V max
Reference Input
REF IN(+) – REF IN(–) Voltage
+2.5
V nom
HIREF Bit of Mode Register = 0
REF IN(+) – REF IN(–) Voltage
+5
V nom
HIREF Bit of Mode Register = 1
Absolute/Common-Mode Voltage13
AGND – 30 mV
V min
AVDD + 30 mV
V max
NO REF Trigger Voltage
0.3
V min
NO REF Bit Active If VREF Below This Voltage
0.65
V max
NO REF Bit Inactive If VREF Above This Voltage
AD7730–SPECIFICATIONS
(AVDD = +5 V, DVDD = +3 V or +5 V; REF IN(+) = AVDD; REF IN(–) = AGND = DGND =
0 V; fCLK IN = 4.9152 MHz. All specifications TMIN to TMAX unless otherwise noted.)
REV. B
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