Datasheet

www.ti.com OA Registers
20.3.1 OAxCTL0, Opamp Control Register 0
7 6 5 4 3 2 1 0
OANx OAPx OAPMx OAADCx
rw-0 rw-0 rw-0 rw-0 rw-0 rw-0 rw-0 rw-0
OANx Bits 7-6 Inverting input select. These bits select the input signal for the OA inverting input.
00 OAxI0
01 OAxI1
10 OAxIA (see the device-specific data sheet for connected signal)
11 OAxIB (see the device-specific data sheet for connected signal)
OAPx Bits 5-4 Non-inverting input select. These bits select the input signal for the OA non-inverting input.
00 OAxI0
01 OA0I1
10 OAxIA (see the device-specific data sheet for connected signal)
11 OAxIB (see the device-specific data sheet for connected signal)
OAPMx Bits 3-2 Slew rate select. These bits select the slew rate vs. current consumption for the OA.
00 Off, output high Z
01 Slow
10 Medium
11 Fast
OAADCx Bits 1-0 OA output select. These bits, together with the OAFCx bits, control the routing of the OAx output when
OAPMx > 0.
When OAFCx = 0:
00 OAxOUT connected to external pins and ADC input A1, A3, or A5
01 OAxOUT connected to external pins and ADC input A12, A13, or A14
10 OAxOUT connected to external pins and ADC input A1, A3, or A5
11 OAxOUT connected to external pins and ADC input A12, A13, or A14
When OAFCx > 0:
00 OAxOUT used for internal routing only
01 OAxOUT connected to external pins and ADC input A12, A13, or A14
10 OAxOUT connected to external pins and ADC input A1, A3, or A5
11 OAxOUT connected internally to ADC input A12, A13 , or A14. External A12, A13, or A14 pin
connections are disconnected from the ADC.
521
SLAU144J–December 2004–Revised July 2013 OA
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