LMP90100MHE National Semiconductor, LMP90100MHE Datasheet - Page 54

• Manufacturer Part Number: LMP90100MHE
• Description: AFE, SENSOR, 28TSSOP
• Manufacturer: National Semiconductor

Specifications of LMP90100MHE

• Brief Features: 24bit Low Power Sigma Delta ADC, Automatic Channel Sequencer
• Supply Voltage Range: 2.7V To 5.5V
• Operating Temperature Range: -40°C To +105°C
• Digital Ic Case Style: TSSOP
• No. Of Pins: 28
• Base: RoHS Compliant
• Ic Function: Multi-Channel, Low Power 24-bit Sensor AFE
• Rohs Compliant: Yes

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18.6 Sensor Diagnostic Registers
SENDIAG_THLD: Sensor Diagnostic Threshold (Address 0x14 - 0x15)
SENDIAG_FLAGS: Sensor Diagnostic Flags (Address 0x19 )
[4:3] OFLO_FLAGS
[2:0] SAMPLED_CH
Bit Bit Symbol
Address
7
6
5
0x14
0x15
SHORT_THLD_ FLAG
RAILS_FLAG
POR_AFT_LST_RD
Name
SENDIAG_THLDH
SENDIAG_THLDL
Bit Description
Short Circuit Threshold Flag = 1 when the absolute value of VOUT is within the absolute
threshold voltage set by SENDIAG_THLDH and SENDIAG_THLDL.
Rails Flag = 1 when at least one of the inputs is near rail (VA or VSS).
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.
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 towards VA
0x3: The modulator was over-ranged towards VSS
Channel Number – the sampled channel for ADC_DOUT and SENDIAG_FLAGS.
Register Description
Sensor Diagnostic threshold [15:8]
Sensor Diagnostic threshold [7:0]
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