Datasheet

LMP90077, LMP90078, LMP90079, LMP90080
SNAS521F –JULY 2011–REVISED MARCH 2013 www.ti.com
Table 16. CH_SCAN
(1)
(continued)
Channel Scan Mode (Address 0x1F)
Bit Bit Symbol Bit Description
Starting channel for conversion
0x0 (default): CH0
0x1: CH1
FIRST_CH (CH4 to CH6 for
0x2: CH2
[2:0] LMP90080 and LMP90079
0x3: CH3
only)
0x4: CH4
0x5: CH5
0x6: CH6
(3)
(3) FIRST_CH cannot be greater than LAST_CH. For example, if FIRST_CH = CH1, then LAST_CH cannot be CH0. If 0x7 is written it is
ignored.
Table 17. CHx_INPUTCN
Channel Input Control (CH4 to CH6 for LMP90080/LMP90079 only)
Register Address (hex): CH0: 0x20, CH1: 0X22, CH2: 0x24, CH3: 0x26, CH4: 0x28, CH5: 0x2A, CH6: 0x2C
Bit Bit Symbol Bit Description
Enable sensor diagnostic
7 BURNOUT_EN 0 (default): Disable Sensor Diagnostics current injection for this Channel
1: Enable Sensor Diagnostics current injection for this Channel
Select the reference
6 VREF_SEL 0 (Default): Select VREFP1 and VREFN1
1: Select VREFP2 and VREFN2
Positive input select
0x0: VIN0
0x1: VIN1
0x2: VIN2
[5:3] VINP 0x3: VIN3 (LMP90080/LMP90079 only)
0x4: VIN4 (LMP90080/LMP90079 only)
0x5: VIN5 (LMP90080/LMP90079 only)
0x6: VIN6
0x7: VIN7
(1)
Negative input select
0x0: VIN0
0x1: VIN1
0x2: VIN2
[2:0] VINN 0x3: VIN3 (LMP90080/LMP90079 only)
0x4: VIN4 (LMP90080/LMP90079 only)
0x5: VIN5 (LMP90080/LMP90079 only)
0x6: VIN6
0x7: VIN7
(1)
(1) To see the default values for each channel, refer to the table below.
52 Submit Documentation Feedback Copyright © 2011–2013, Texas Instruments Incorporated
Product Folder Links: LMP90077 LMP90078 LMP90079 LMP90080