MIC912
200MHz Low-Power SOT23-5 Op Amp
General Description
The MIC912 is a high-speed, operational amplifier with a
gain-bandwidth product of 200MHz. The part is unity-gain
stable provided its output is loaded with at least 200Ω. It
has a very low, 2.4mA supply current, and features the tiny
SOT23-5 package.
Supply voltage range is from ±2.5V to ±9V, allowing the
MIC912 to be used in low-voltage circuits or applications
requiring large dynamic range.
The MIC912 is stable driving any capacitive load and
achieves excellent PSRR, making it much easier to use
than most conventional high-speed devices. Low supply
voltage, low power consumption, and small packing make
the MIC912 ideal for portable equipment. The ability to
drive capacitive loads also makes it possible to drive long
coaxial cables.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
•
•
•
•
•
•
•
200MHz gain bandwidth product
2.4mA supply current
SOT23-5 package
360V/µs slew rate
Drives any capacitive load
Unconditionally stable with gain of +2 or –1
Conditionally stable with gain of +1
Applications
•
•
•
•
•
Video
Imaging
Ultrasound
Portable equipment
Line drivers
___________________________________________________________________________________________________________
Ordering Information
Part Number
MIC912BM5
MIC912YM5
Temperature Range
–40° to +85°C
–40° to +85°C
Package
5-Pin SOT23
5-Pin SOT23
Lead Finish
Standard
Pb-Free
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
408
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
October 2007
M9999-100507
Micrel, Inc.
MIC912
Pin Configuration
IN+
3
Functional Pinout
V+ OUT
2
1
IN+
Part
Identification
3
V+ OUT
2
1
A23
4
5
4
5
IN–
V–
IN–
V–
SOT23-5
SOT23-5
Pin Description
Pin Number
Pin Name
Pin Function
1
2
3
4
5
OUT
V+
IN+
IN–
V–
Output: Amplifier Output
Positive Supply (Input)
Non-inverting Input
Inverting Input
Negative Supply (Input)
October 2007
2
M9999-100507
Micrel, Inc.
MIC912
Absolute Maximum Ratings
(1)
Supply Voltage (V
V+
– V
V–
) .............................................20V
Differential Input Voltage (|V
IN+
– V
IN–
|)
(3)
.........................8V
Input Common-Mode Range (V
IN+
– V
IN–
) .............V
V+
to V
V–
Lead Temperature (soldering, 5 sec.)........................ 260°C
Storage Temperature (T
s
) .......................................... 150°C
ESD Rating
(4)
............................................................... 1.5kV
Operating Ratings
(2)
Supply Voltage (V
S
)......................................... ±2.5V to ±9V
Junction Temperature (T
J
) .......................... –40°C to +85°C
Thermal Resistance ...............................................260°C/W
Electrical Characteristics (±5V)
V
V+
= +5V, V
V–
= –5V, V
CM
= 0V, V
OUT
= 0V; R
L
= 10MΩ; T
J
= 25°C,
bold
values indicate –40°C
≤
T
J
≤
+85°C; unless noted.
Symbol
Parameter
Condition
Min
Typ
Max
15
Units
V
OS
Input Offset Voltage
Input Offset Voltage
Temperature Coefficient
1
4
3.5
0.05
CMRR > 60dB
–2.5V < V
CM
< +2.5V
±5V < V
S
< ±9V
R
L
= 2k, V
OUT
= ±2V
R
L
= 200Ω, V
OUT
= ±1V
positive, R
L
= 2kΩ
negative, R
L
= 2kΩ
positive, R
L
= 200Ω
negative, R
L
= 200Ω
+3.0
+2.75
mV
µV/°C
I
B
I
OS
V
CM
CMRR
PSRR
A
VOL
V
OUT
Input Bias Current
Input Offset Current
Input Common-Mode Range
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
–3.25
70
60
5.5
9
3
µA
µA
µA
V
dB
dB
dB
dB
dB
dB
V
V
+3.25
90
90
71
71
3.5
–3.5
3.2
–2.8
170
150
325
72
25
2.4
3.5
4.1
74
70
60
60
+3.3
+3.0
–3.3
–3.0
V
V
V
V
–2.45
–2.2
V
V
MHz
MHz
V/µs
mA
mA
mA
mA
GBW
BW
SR
I
GND
Unity Gain-Bandwidth Product
–3dB Bandwidth
Slew Rate
Short-Circuit Output Current
Supply Current
R
L
= 1kΩ
A
V
= 1, R
L
= 100Ω
source
sink
October 2007
3
M9999-100507
Micrel, Inc.
MIC912
Electrical Characteristics
V
V+
= +9V, V
V–
= –9V, V
CM
= 0V, V
OUT
= 0V; R
L
= 10MΩ; T
J
= 25°C,
bold
values indicate –40°C
≤
T
J
≤
+85°C; unless noted.
Symbol
Parameter
Condition
Min
Typ
Max
15
Units
V
OS
Input Offset Voltage
Input Offset Voltage
Temperature Coefficient
1
4
3.5
0.05
CMRR > 60dB
–6.5V < V
CM
< 6.5V
R
L
= 2kΩ, V
OUT
= ±6V
positive, R
L
= 2kΩ
negative, R
L
= 2kΩ
–7.25
70
60
60
mV
µV/°C
I
B
I
OS
V
CM
CMRR
A
VOL
V
OUT
Input Bias Current
Input Offset Current
Input Common-Mode Range
Common-Mode Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
5.5
9
3
µA
µA
µA
V
dB
dB
dB
V
V
+7.25
98
73
+7.4
–7.4
200
360
90
32
2.5
3.7
4.3
+7.2
+6.8
–7.2
–6.8
V
V
MHz
V/µs
mA
mA
mA
mA
GBW
SR
I
GND
Unity Gain-Bandwidth Product
Slew Rate
Short-Circuit Output Current
Supply Current
R
L
= 1kΩ
source
sink
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Exceeding the maximum differential input voltage will damage the input stage and degrade performance (in particular, input bias current is likely to
change).
4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
October 2007
4
M9999-100507
Micrel, Inc.
MIC912
Test Circuits
V
CC
10µF
V
CC
Input
BNC
50
0.1µF
10k
10k
0.1µF
R2
5k
10µF
2k
4
2
MIC912
3
5
1
BNC
Input
Output
BNC
R1 5k
R7c 2k
4
2
0.1µF
1
BNC
MIC912
3
5
Output
10k
0.1µF
R6
Input
BNC
0.1µF
0.1µF
5k
All resistors 1%
R3
200k
R4
R5
5k
10µF
V
EE
All resistors:
1% metal film
V
EE
10µF
⎛
R2 R2 + R 5 + R4
⎞
V
OUT
= V
ERROR
⎜
1+
+
⎟
⎝
R1
⎠
R7
PSRR vs. Frequency
CMRR vs. Frequency
100pF
V
CC
10µF
10pF
R1
R2 4k
R3 27k
S1
S2
4
2
0.1µF
1
BNC
MIC912
3
5
R5
R4 27k
0.1µF
To
Dynamic
Analyzer
10pF
V
EE
10µF
Noise Measurement
October 2007
5
M9999-100507
京公网安备 11010802033920号
EEWORLD
