Datasheet

MSP430xG461x
MIXED SIGNAL MICROCONTROLLER
SLAS508I − APRIL 2006 − REVISED MARCH 2011
22
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Comparator_A
The primary function of the comparator_A module is to support precision slope analog-to-digital conversions,
battery-voltage supervision, and monitoring of external analog signals.
ADC12
The ADC12 module supports fast, 12-bit analog-to-digital conversions. The module implements a 12-bit SAR
core, sample select control, reference generator and a 16 word conversion-and-control buffer. The
conversion-and-control buffer allows up to 16 independent ADC samples to be converted and stored without
any CPU intervention.
DAC12
The DAC12 module is a 12-bit, R-ladder, voltage output DAC. The DAC12 may be used in 8- or 12-bit mode,
and may be used in conjunction with the DMA controller. When multiple DAC12 modules are present, they may
be grouped together for synchronous operation.
OA
The MSP430xG461x has three configurable low-current general-purpose operational amplifiers. Each OA input
and output terminal is software-selectable and offer a flexible choice of connections for various applications.
The OA op amps primarily support front-end analog signal conditioning prior to analog-to-digital conversion.
OA Signal Connections
Input Pin
Number
Device Input
Signal
Module Input
Name
Module
Block
Module
Out
p
ut
Device
Out
p
ut
Output Pin
Number
PZ
Signal Name Block
Output
Signal
Output
Signal
PZ
95 - P6.0 OA0I0 OA0I0
OA0O 96 - P6.1
97 - P6.2 OA0I1 OA0I1
OA0O ADC12 (internal)
DAC12_0OUT
(internal)
DAC12_0OUT
OA0 OA0OUT
DAC12_1OUT
(internal)
DAC12_1OUT
3 - P6.4 OA1I0 OA1I0
OA1O 2 - P6.3
13 - P5.0 OA1I1 OA1I1
OA1O 13- P5.0
DAC12_0OUT
(internal)
DAC12_0OUT
OA1 OA1OUT
OA1O ADC12 (internal)
DAC12_1OUT
(internal)
DAC12_1OUT
5 - P6.6 OA2I0 OA2I0
OA2O 4 - P6.5
14 - P10.7 OA2I1 OA2I1
OA2O 14 - P10.7
DAC12_0OUT
(internal)
DAC12_0OUT
OA2 OA2OUT
OA2O ADC12 (internal)
DAC12_1OUT
(internal)
DAC12_1OUT