
December 2001
3
MIC921
MIC921
Micrel
Symbol
Parameter
Condition
Min
Typ
Max
Units
PSRR
Power Supply Rejection Ratio
±
3.5V < V
S
<
±
9V
R
L
= 2k, V
OUT
=
±
3V
R
L
= 100
, V
OUT
=
±
1V
positive, R
L
= 2k
negative, R
L
= 2k
A
V
= 1, C
L
= 1.7pF
95
105
dB
A
VOL
Large-Signal Voltage Gain
75
86
dB
92
dB
V
OUT
Maximum Output Voltage Swing
+6.5
7.6
V
–
7.6
–
6.2
V
GBW
Unity Gain-Bandwidth Product
45
MHz
PM
Phase Margin
40
°
BW
–
3dB Bandwidth
A
V
= 1, R
L
= 1k
, C
L
= 1.7pF
C=1.7pF, Gain=1, V
OUT
=5V, peak to peak,
negative SR = 2500V/
μ
s
61
MHz
SR
Slew Rate
3200
V/
μ
s
I
SC
Short-Circuit Output Current
source
40
59
mA
sink
25
45
mA
I
S
Supply Current
No Load
0.36
0.6
mA
Input Voltage Noise
f = 10kHz
12
nV
√
Hz
Input Current Noise
f = 10kHz
0.7
pA
√
Hz
Note 1.
Note 2.
Note 3.
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
Exceeding the maximum differential input voltage will damage the input stage and degrade performance (in particular, input bias current is
likely to change).
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
Output swing limited by the maximum output sink capability, refer to the short-circuit current vs. temperature graph in
“
Typical Characteristics.
”
Note 4.
Note 5.