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参数资料
| 型号： | LM12H458MW/883 |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, CQFP44 |
| 封装： | CERQUAD-44 |
| 文件页数： | 9/12页 |
| 文件大小： | 174K |
| 代理商： | LM12H458MW/883 |
MNLM12H458M-X REV 0A0
MILITARY DATA SHEET
Electrical Characteristics
DC PARAMETER: CONVERTER CHARACTERISTICS (Continued)
(The following conditions apply to all the following parameters, unless otherwise specified.)
DC:
VA+ = VD+ = 5V, Vref+ = 5V, Vref- = 0V, Rs = 25 Ohms, 12-bit+sign conversion mode fCLK = 8.0MHz, source
impedance for Vref+ and Vref- <25 Ohms, fully-differential input with fixed 2.5V common-mode voltage,
and minimum acquisition time.
SYMBOL
PARAMETER
CONDITIONS
NOTES
PIN-
NAME
MIN
MAX
UNIT
SUB-
GROUPS
(Vin+ -
Vin-)/2
Common Mode Input
Voltage Range
Gnd
VA+
V
1, 2,
3
PSS
Power Supply
Sensitivity
Zero Error VA+ = VD+ = 5V +10%
3
-1.75
+1.75
LSB
1, 2,
3
Full-Scale Error Vref+ = 4.5V, Vref- =
GND
3
-2.00
+2.00
LSB
1, 2,
3
AC PARAMETER: CONVERTER AC CHARACTERISTICS
(The following conditions apply to all the following parameters, unless otherwise specified.)
AC:
VA+ = VD+ = 5V, Vref+ = 5V, Vref- = 0V, Rs = 25 Ohms, 12-bit+sign conversion mode, fCLK = 8.0mHZ,
source impedance for Vref+ and Vref- < 25 Ohms, fully-differential input with fixed 2.5V common-mode
voltage, and minimum acquisition time.
Clock Duty Cycle
40
60
%
9, 10,
11
tC
Conversion Time
13-Bit Resolution Sequencer State S5
44
tCLK
+50nS
9, 10,
11
9-Bit Resolution Sequencer State S5
21
tCLK
+50nS
9, 10,
11
tA
Acquisition Time
Sequencer State S7 Built-in minimum
for 13-Bits
9 tCLK
+50nS
9, 10,
11
Built-in minimum for 9-Bits and
"Watchdog" mode
2 tCLK
+50nS
9, 10,
11
tZ
Auto-Zero Time
Sequencer State S2
76
tCLK
+50nS
9, 10,
11
tCAL
Full Calibration
Time
Sequencer State S2
4944
tCLK
+50nS
9, 10,
11
tWD
"Watchdog" Mode
Comparison Time
Sequencer State S6, S4 and S5
11
tCLK
+50nS
9, 10,
11
6
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相关代理商/技术参数 |
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| LM12L438CIV | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Sign Data Acquisition System with Serial I/O and Self-Calibration |
| LM12L438CIWM | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Sign Data Acquisition System with Serial I/O and Self-Calibration |
| LM12L454CIV | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| LM12L458 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:12-Bit + Sign Data Acquisition System with Self-Calibration |
| LM12L458_06 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:12-Bit + Sign Data Acquisition System with Self-Calibration |
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