MSP430FG47X Datasheet, PDF (53/91 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430FG47x
MIXED SIGNAL MICROCONTROLLER
SLAS580D -- OCTOBER 2008 -- REVISED MARCH 2011
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
operational amplifier OA, dynamic specifications
PARAMETER
TEST CONDITIONS
Fast Mode
SR
Slew rate
Medium Mode
Slow Mode
Open-loop voltage gain
_m
GBW
t_en(on)
t_en(off)
Phase margin
Gain margin
Gain-bandwidth product
(see Figure 27 and Figure 28)
Enable time on
Enable time off
C_L = 50 pF
C_L = 50 pF
Noninverting, Fast Mode,
R_L = 47 k, C_L = 50 pF
Noninverting, Medium Mode,
R_L = 300 k, C_L = 50pF
Non-inverting, Slow Mode,
R_L = 300 k, C_L = 50pF
t_on, Noninverting, Gain = 1
TYPICAL OPEN-LOOP GAIN vs FREQUENCY
140
120
100
80
Fast Mode
60
40
Medium Mode
20
0
Slow Mode
--20
--40
--60
--80
1
10
100
1000 10000
Input Frequency -- kHz
Figure 27
100000
0
--50
--100
--150
--200
--250
1
V_CC
MIN
TYP MAX UNIT
1.2
0.8
V/s
0.3
100
dB
60
deg
20
dB
2.2
2.2 V/3 V
1.4
MHz
2.2 V/3 V
2.2 V/3 V
0.5
10
20 s
1 s
TYPICAL PHASE vs FREQUENCY
Fast Mode
Medium Mode
Slow Mode
10
100
1000
Input Frequency -- kHz
Figure 28
10000 100000
 POST OFFICE BOX 655303 DALLAS, TEXAS 75265
53