Opamp2 Offset Trimming Register In Normal Mode (Opamp2_Otr) - ST STM32L4x6 Reference Manual

Operational amplifiers (OPAMP)
Bits 9:8 VM_SEL: Inverting input selection
These bits are used only when OPAMODE = 00, 01 or 10.
Bits 7:6 Reserved, must be kept at reset value.
Bits 5:4 PGA_GAIN: Operational amplifier Programmable amplifier gain value
Bits 3:2 OPAMODE: Operational amplifier PGA mode
Bit 1 OPALPM: Operational amplifier Low Power Mode
The operational amplifier must be disable to change this configuration.
Bit 0 OPAEN: Operational amplifier Enable
20.5.5

OPAMP2 offset trimming register in normal mode (OPAMP2_OTR)

Address offset: 0x14
Reset value: 0x0000 XXXX (factory trimmed values)
31 30 29
Res. Res. Res.
15 14 13
Res. Res. Res.
Bits 31:13 Reserved, must be kept at reset value.
Bits 12:8 TRIMOFFSETP[4:0]: Trim for PMOS differential pairs
Bits 7:5 Reserved, must be kept at reset value.
Bits 4:0 TRIMOFFSETN[4:0]: Trim for NMOS differential pairs
20.5.6 OPAMP2 offset trimming register in low-power mode
(OPAMP2_LPOTR)
Address offset: 0x18
600/1693
00: GPIO connected to VINM (valid also in PGA mode for filtering)
01: Dedicated low leakage input, (available only on BGA132) connected to VINM (valid also
in PGA mode for filtering)
1x: Inverting input not externally connected. These configurations are valid only when
OPAMODE = 10 (PGA mode)
00: internal PGA Gain 2
01: internal PGA Gain 4
10: internal PGA Gain 8
11: internal PGA Gain 16
00: internal PGA disable
01: internal PGA disable
10: internal PGA enable, gain programmed in PGA_GAIN
11: internal follower
0: operational amplifier in normal mode
1: operational amplifier in low-power mode
0: operational amplifier disabled
1: operational amplifier enabled
28 27 26 25
Res. Res. Res. Res.
12 11 10 9
TRIMOFFSETP
rw rw rw rw
DocID024597 Rev 3
24 23 22 21
Res. Res. Res. Res.
8 7 6 5
Res. Res. Res.
rw
20 19 18 17
Res. Res. Res. Res.
4 3 2 1
TRIMOFFSETN
rw rw rw rw
RM0351
16
Res.
0
rw