MSP430F22X2_17 Datasheet, PDF (53/94 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

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ILoad
OAx
O/P(OAx)
MSP430F22x2
MSP430F22x4
SLAS504G – JULY 2006 – REVISED AUGUST 2012
RLoad
CLoad
AV _CC
2
RO/P(OAx)
Max
Min
0.2V
Figure 25. OAx Output Resistance Tests
AVCC−0.2VAVCC _VOUT
Operational Amplifier (OA) Dynamic Specifications (MSP430F22x4 Only)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
Fast Mode
V_CC
MIN TYP
1.2
SR Slew rate
Medium Mode
0.8
Slow Mode
0.3
Open-loop voltage gain
100
φm Phase margin
Gain margin
GBW
Gain-bandwidth product
(see Figure 26 and Figure 27)
t_en(on) Enable time on
t_en(off) Enable time off
C_L = 50 pF
C_L = 50 pF
Noninverting, Fast Mode,
R_L = 47 kΩ, C_L = 50 pF
Noninverting, Medium Mode,
R_L = 300 kΩ, C_L = 50 pF
Noninverting, Slow Mode,
R_L = 300 kΩ, C_L = 50 pF
t_on, noninverting, Gain = 1
60
20
2.2
2.2 V, 3 V
1.4
0.5
2.2 V, 3 V
10
2.2 V, 3 V
MAX UNIT
V/µs
dB
deg
dB
MHz
20 µs
1 µs
140
120
100
80
60
40
20
0
−20
−40
−60
−80
1
TYPICAL OPEN-LOOP GAIN
vs
FREQUENCY
Fast Mode
Medium Mode
Slow Mode
10
100
1000 10000 100000
Input Frequency − kHz
Figure 26.
TYPICAL PHASE
vs
FREQUENCY
0
−50
−100
−150
−200
Fast Mode
Medium Mode
Slow Mode
−250
1
10
100
1000
Input Frequency − kHz
Figure 27.
10000 100000
Copyright © 2006–2012, Texas Instruments Incorporated
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