Datasheet

Input Frequency − kHz
−250
−200
−150
−100
−50
0
1 10 100 1000 10000 100000
Phase − degrees
Slow Mode
Fast Mode
Medium Mode
Input Frequency − kHz
−80
−60
−40
−20
0
20
40
60
80
100
120
140
1 10 100 1000 10000 100000
Slow Mode
Fast Mode
Gain − dB
Medium Mode
R
O/P(OAx)
Max
0.2V
AV
CC
AV
CC
−0.2V
V
OUT
Min
R
Load
AV
CC
C
Load
2
I
Load
OAx
O/P(OAx)
MSP430F22x2
MSP430F22x4
www.ti.com SLAS504G –JULY 2006–REVISED AUGUST 2012
Figure 25. OAx Output Resistance Tests
Operational Amplifier (OA) Dynamic Specifications (MSP430F22x4 Only)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
Fast Mode 1.2
SR Slew rate Medium Mode 0.8 V/µs
Slow Mode 0.3
Open-loop voltage gain 100 dB
φm Phase margin C
L
= 50 pF 60 deg
Gain margin C
L
= 50 pF 20 dB
Noninverting, Fast Mode,
2.2
R
L
= 47 kΩ, C
L
= 50 pF
Gain-bandwidth product Noninverting, Medium Mode,
GBW 2.2 V, 3 V 1.4 MHz
(see Figure 26 and Figure 27) R
L
= 300 kΩ, C
L
= 50 pF
Noninverting, Slow Mode,
0.5
R
L
= 300 kΩ, C
L
= 50 pF
t
en(on)
Enable time on t
on
, noninverting, Gain = 1 2.2 V, 3 V 10 20 µs
t
en(off)
Enable time off 2.2 V, 3 V 1 µs
TYPICAL OPEN-LOOP GAIN TYPICAL PHASE
vs vs
FREQUENCY FREQUENCY
Figure 26. Figure 27.
Copyright © 2006–2012, Texas Instruments Incorporated 53