Texas Instruments MSP430CG4616IPZ, Руководство пользователя

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MSP430xG461x
MIXED SIGNAL MICROCONTROLLER
SLAS508I − APRIL 2006 − REVISED MARCH 2011
61
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted)
RO/P(OAx)
Max
0.2V
AVCC
AVCC −0.2V
VOUT
Min
RLoad
AVCC
CLoad
2
ILoad
OAx
O/P(OAx)
Figure 34. OAx Output Resistance Tests
operational amplifier OA, dynamic specifications
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
Fast Mode — 1.2
SR Slew rate
Medium Mode — 0.8
V/
μ
s SR Slew rate
Slow Mode — 0.3
V/
μ
s
Open-loop voltage gain — 100 dB
φ
m
Phase margin C
L
= 50 pF — 60 deg
Gain margin C
L
= 50 pF — 20 dB
Non inverting Fast Mode R 47k
Ω
C 50pF 2 2
Gain-bandwidth product
Non−inverting, Fast Mode, R
L
= 47k
Ω
, C
L
= 50pF 2.2
GBW
Gain-bandwidth product
(see Figure 35
Non inverting Medium Mode R 300k
Ω
C 50pF 2 2 V/3 V 1 4 MHz GBW
(see Figure 35
Non−inverting, Medium Mode, R
L
=300k
Ω
, C
L
= 50pF 2.2 V/3 V 1.4 MHz GBW
(see Figure 35
and Figure 36)
Non inverting Slow Mode R 300k
Ω
C 50pF
2.2 V/3 V
0 5
MHz
and Figure 36)
Non−inverting, Slow Mode, R
L
=300k
Ω
, C
L
= 50pF 0.5
t
en(on)
Enable time on t
on
, non-inverting, Gain = 1 2.2 V/3 V 10 20
μ
s
t
en(off)
Enable time off 2.2 V/3 V 1
μ
s
Figure 35
Input Frequency − kHz
−80
−60
−40
−20
0
20
40
60
80
100
120
140
TYPICAL OPEN-LOOP GAIN vs FREQUENCY
Slow Mode
Fast Mode
Gain − dB
Medium Mode
0.001 0.01 0.1 1 10 100 1000 10000
Figure 36
Input Frequency − kHz
−250
−200
−150
−100
−50
0
1 10 100 1000 10000
TYPICAL PHASE vs FREQUENCY
Phase
− degrees
Slow Mode
Fast Mode
Medium Mode