
April 2006
3
MIC921
MIC921
Micrel, Inc.
Symbol
Parameter
Condition
Min
Typ
Max
Units
PSRR
Power Supply Rejection Ratio
±3.5V < VS < ±9V
95
105
dB
AVOL
Large-Signal Voltage Gain
RL = 2k, VOUT = ±3V
75
86
dB
RL = 100Ω, VOUT = ±1V
92
dB
VOUT
Maximum Output Voltage Swing
positive, RL = 2kΩ
+6.5
7.6
V
negative, RL = 2kΩ
–7.6
–6.2
V
GBW
Unity Gain-Bandwidth Product
AV = 1, CL = 1.7pF
45
MHz
PM
Phase Margin
40
°
BW
–3dB Bandwidth
AV = 1, RL = 1kΩ, CL = 1.7pF
61
MHz
SR
Slew Rate
C=1.7pF, Gain=1, VOUT=5V, peak to peak,
3200
V/s
negative SR = 2500V/s
ISC
Short-Circuit Output Current
source
40
59
mA
sink
25
45
mA
IS
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. Exceeding the absolute maximum rating may damage the device.
Note 2. The device is not guaranteed to function outside its operating rating.
Note 3. Exceeding the maximum differential input voltage will damage the input stage and degrade performance (in particular, input bias current is
likely to change).
Note 4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
Note 5. Output swing limited by the maximum output sink capability, refer to the short-circuit current vs. temperature graph in “Typical Characteristics.”