參數(shù)資料
型號： LM12438CIWMX
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 模擬信號調理
英文描述： SPECIALTY ANALOG CIRCUIT, PDSO28
封裝： SOP-28
文件頁數(shù)： 45/80頁
文件大?。?/td> 1552K
代理商： LM12438CIWMX
20 Electrical Specifications
21 RATINGS
211 Absolute Maximum Ratings
(Notes12)
If MilitaryAerospace specified devices are required
please contact the National Semiconductor Sales
OfficeDistributors for availability and specifications
Supply Voltage (VAa and VDa)
60V
Voltage at Input and Output Pins
except IN0 – IN3 (LM12434)
b
03V to Va a 03V
and IN0 – IN7 (LM12 L 438)
Voltage at Analog Inputs IN0 – IN3 (LM12434)
and IN0 – IN7 (LM12 L 438)
GND b 5V to Va a 5V
lVAa b VDal
300 mV
lAGND b DGNDl
300 mV
Input Current at Any Pin (Note 3)
g
5mA
Package Input Current (Note 3)
g
20 mA
Power Dissipation (TA e 25 C) (Note 4)
V Package
WM Package
Storage Temperature
b
65 Cto a150 C
Soldering Information Lead Temperature (Note 19)
V Package Vapor Phase (60 seconds)
Infrared (15 seconds)
WM Package Vapor Phase (60 seconds)
Infrared (15 seconds)
ESD Susceptibility (Note 5)
15 kV
212 Operating Ratings
(Notes12)
Temperature Range
(Tmin s TA s Tmax)
LM12434CIVLM12 L 438CIV
b
40 C s TA s 85 C
LM12434CIWM LM12 L 438CIWM b40 C s TA s 85 C
Supply Voltage
VAa VDa
30V to 55V
lVAa b VDal
s
100 mV
lAGDND b DGNDl
s
100 mV
Analog Inputs Range
GND s VINa s VAa
VREFa Input Voltage
1V s VREFa s VAa
VREFb Input Voltage
0V s VREFb s VREFa b 1V
VREFa b VREFb
1V s VREF s VAa
VREF Common Mode
Range (Note 16)
01 VAa s VREFCM s 06 VAa
22 PERFORMANCE CHARACTERISTICS
All specifications apply to the LM12434 LM12438 and LM12L438 unless otherwise
noted Specifications in braces
apply only to the LM12L438
221 Converter Static Characteristics
The following specifications apply to the LM12434 and LM12 L 438 for VAa e
VDa e 5V 33V AGND e DGND e 0V VREFa e 4096V 25V VREFb e 0V 12-bit a sign conversion mode fCLK e
80 MHz
6 MHz
RS e 25X source impedance for VREFa and VREFb s 25X fully-differential input with fixed 2048V
125V common-mode voltage and minimum acquisition time unless otherwise specified Boldface limits apply for TA e
TJ e TMIN to TMAX all other limits TA e TJ e 25 C (Notes 6 7 8 and 9)
Symbol
Parameter
Conditions
Typical
Limits
Units
(Note 10)
(Note 11)
(Limit)
ILE
Positive and Negative Integral
After Auto-Cal (Notes 12 17)
g
035
g
1
LSB (max)
Linearity Error
TUE
Total Unadjusted Error
After Auto-Cal (Note 12)
g
1
LSB
Resolution with No Missing Codes
After Auto-Cal (Note 12)
13
Bits
DNL
Differential Non-Linearity
After Auto-Cal
g
02
g
1
LSB (max)
Zero Error
After Auto-Cal (Notes 13 17)
g
02
g
1
LSB (max)
Positive Full-Scale Error
After Auto-Cal (Notes 12 17)
g
02
g
2
LSB (max)
Negative Full-Scale Error
After Auto-Cal (Notes 12 17)
g
02
g
2
LSB (max)
DC Common Mode Error
(Note 14)
g
2
g
35
LSB (max)
g
40
ILE
8-Bit a Sign and ‘‘Watchdog’’
(Note 12)
Mode Positive and Negative
g
015
g
12
LSB (max)
Integral Linearity Error
TUE
8-Bit a Sign and ‘‘Watchdog’’ Mode
After Auto-Zero
g
12
g
12
LSB (max)
Total Unadjusted Error
8-Bit a Sign and ‘‘Watchdog’’ Mode
9
Bits (max)
Resolution with No Missing Codes
5
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