参数资料
型号: LMP90078MHX/NOPB
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PDSO28
封装: LEAD FREE, PLASTIC, MO-153, TSSOP-28
文件页数: 53/62页
文件大小: 1721K
代理商: LMP90078MHX/NOPB
CHx_SCAL_SCALING: CH0-CH3 System Calibration Scaling Coefficient Registers
ADDR
Name
Description
CH0
CH1
CH2
CH3
0x36
0x3E
0x46
0x4E
CHx_SCAL_SCALING
System Calibration Scaling Coefficient Data [5:0]
CHx_SCAL_BITS_SELECTOR: CH0-CH3 System Calibration Bit Selector Registers
ADDR
Name
Description
CH0
CH1
CH2
CH3
0x37
0x3F
0x47
0x4F
CHx_SCAL_BITS_SELECTOR
System Calibration Bit Selection Data [2:0]
18.6 SENSOR DIAGNOSTIC REGISTERS
SENDIAG_THLD: Sensor Diagnostic Threshold
(Address 0x14)
Address
Name
Register Description
0x14
SENDIAG_THLD
Sensor Diagnostic threshold
SENDIAG_FLAGS: Sensor Diagnostic Flags
(Address 0x19 )
Bit
Bit Symbol
Bit Description
7
SHORT_THLD_ FLAG
Short Circuit Threshold Flag = 1 when the absolute value of VOUT is within the absolute
threshold voltage set by the SENDIAG_THLD register.
6
RAILS_FLAG
Rails Flag = 1 when at least one of the inputs is near rail (VA or GND).
5
POR_AFT_LST_RD
Power-on-reset after last read = 1 when there was a power-on-reset event since the last
time the SENDIAG_FLAGS register was read.
[4:3] OFLO_FLAGS
Overflow flags
0x0:
Normal operation
0x1:
The modulator was not overranged, but ADC_DOUT got clamped to 0x7f_ffff (positive
fullscale) or 0x80_0000 (negative full scale)
0x2:
The modulator was over-ranged (VIN > 1.2*VREF/GAIN)
0x3:
The modulator was over-ranged (VIN < -1.2*VREF/GAIN)
[2:0] SAMPLED_CH
Channel Number – the sampled channel for ADC_DOUT and SENDIAG_FLAGS.
57
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LMP90080/LMP90079/LMP90078/LMP90077
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