Datasheet

MSP430xG461x
MIXED SIGNAL MICROCONTROLLER
SLAS508I − APRIL 2006 − REVISED MARCH 2011
62
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted)
operational amplifier OA feedback network, noninverting amplifier mode (OAFCx = 4)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
OAFBRx = 0 0.996 1.00 1.002
OAFBRx = 1 1.329 1.334 1.340
OAFBRx = 2 1.987 2.001 2.016
G
Gain
OAFBRx = 3
22V/3V
2.64 2.667 2.70
G Gain
OAFBRx = 4
2.2 V/ 3 V
3.93 4.00 4.06
OAFBRx = 5 5.22 5.33 5.43
OAFBRx = 6 7.76 7.97 8.18
OAFBRx = 7 15.0 15.8 16.6
THD
Total harmonic distortion/
All gains
2.2 V −60
dB
THD
Total
harmonic
distortion/
nonlinearity
All gains
3 V −70
dB
t
Settle
Settling time (see Note 1) All power modes 2.2 V/3 V 7 12 μs
NOTES: 1. The settling time specifies the time until an ADC result is stable. This includes the minimum required sampling time of the ADC. The
settling time of the amplifier itself might be faster.
operational amplifier OA feedback network, inverting amplifier mode (OAFCx = 6) (see Note 1)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
OAFBRx = 1 −0.371 −0.335 −0.298
OAFBRx = 2 −1.031 −1.002 −0.972
OAFBRx = 3 −1.727 −1.668 −1.609
G
Gain
OAFBRx = 4
22V/3V
−3.142 −3.00 −2.856
G
G
a
i
n
OAFBRx = 5
2
.
2
V/
3
V
−4.581 −4.33 −4.073
OAFBRx = 6 −7.529 −6.97 −6.379
OAFBRx = 7
−17.04
0
−14.8
−12.27
9
THD
Total harmonic distortion/
All gains
2.2 V −60
dB
THD
Total
harmonic
distortion/
nonlinearity
All gains
3 V −70
dB
t
Settle
Settling time (see Note 2) All power modes 2.2 V/3 V 7 12 μs
NOTES: 1. This includes the 2 OA configuration “inverting amplifier with input buffer”. Both OA needs to be set to the same power mode OAPMx.
2. The settling time specifies the time until an ADC result is stable. This includes the minimum required sampling time of the ADC. The
settling time of the amplifier itself might be faster.