MIC911
105MHz Low-Power SOT23-5 Op Amp
General Description
The MIC911 is a high-speed operational amplifier which is
unity gain stable regardless of resistive and capacitive
load. It provides a gain-bandwidth product of 105MHz, a
very low 1.25mA supply current, and features the Ittybitty
®
SOT23-5 package.
Supply voltage range is from ±2.5V to ±9V, allowing the
MIC911 to be used in low-voltage circuits or applications
requiring large dynamic range.
The MIC911 is stable driving any capacitive load and
achieves excellent PSRR and CMRR, making it much
easier to use than most conventional high-speed devices.
Low supply voltage, low power consumption, and small
packing make the MIC911 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
•
•
•
•
•
•
•
05MHz gain bandwidth product
1.25mA supply current
Unconditionally unity gain stable
Drives any capacitive load
SOT23-5 package
120V/µs slew rate
112dB CMRR
Applications
•
•
•
•
•
•
Video
Imaging
Ultrasound
Portable equipment
Line drivers
XDSL
___________________________________________________________________________________________________________
Ordering Information
Part Number
MIC911BM5
MIC911YM5
Temperature Range
–40° to +85°C
–40° to +85°C
Package
5-Pin SOT23
5-Pin SOT23
Lead Finish
Standard
Pb-Free
IttyBitty is a registered trademark of Micrel, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
408
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
September 2007
M9999-091307
Micrel, Inc.
MIC911
Pin Configuration
IN+
3
Functional Pinout
V+ OUT
2
1
IN+
Part
Identification
3
V+ OUT
2
1
A22
4
5
4
5
IN–
V–
IN–
V–
SOT23-5
SOT23-5
Pin Description
Pin Number
1
2
3
4
5
Pin Name
OUT
V+
IN+
IN–
V–
Pin Function
Output: Amplifier Output
Positive Supply (Input)
Non-inverting Input
Inverting Input
Negative Supply (Input)
September 2007
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M9999-091307
Micrel, Inc.
MIC911
Absolute Maximum Ratings
(1)
Supply Voltage (V
V+
– V
V–
) .............................................20V
Differential Input Voltage (|V
IN+
– V
IN–
|)
(3)
.........................4V
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
V
OS
Parameter
Input Offset Voltage
Input Offset Voltage
Temperature Coefficient
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
CMRR > 60dB
–3V < V
CM
< +3V
±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,
Note 5
negative, R
L
= 200Ω, 25°C
≤
T
J
≤
+85°C,
Note 5
GBW
BW
SR
I
GND
Unity Gain-Bandwidth Product
–3dB Bandwidth
Slew Rate
Short-Circuit Output Current
Supply Current
source
sink
R
L
= 1kΩ
A
V
= 2, R
L
= 470Ω
95
70
100
65
17
1.25
1.8
2.3
+2.8
+2.5
–2.5
–1.7
–1.0
–1.7
–3.5
80
75
65
65
+3.3
+3.0
–3.5
3.2
–3.3
–3.0
110
88
78
78
3.5
Condition
Min
Typ
1
4
1.5
0.03
4
8
2
3
+3.5
Max
10
Units
mV
µV/°C
µA
µA
µA
µA
V
dB
dB
dB
dB
V
V
V
V
V
V
V
V
V
MHz
MHz
V/µs
mA
mA
mA
mA
September 2007
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M9999-091307
Micrel, Inc.
MIC911
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
V
OS
Parameter
Input Offset Voltage
Input Offset Voltage
Temperature Coefficient
I
B
I
OS
V
CM
CMRR
A
VOL
V
OUT
Input Bias Current
Input Offset Current
0.03
Input Common-Mode Range
Common-Mode Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
CMRR > 60dB
–7V < V
CM
< 7V
R
L
= 2kΩ, V
OUT
= ±6V
positive, R
L
= 2kΩ
negative, R
L
= 2kΩ
GBW
BW
SR
I
GND
Unity Gain-Bandwidth Product
–3dB Bandwidth
Slew Rate
Short-Circuit Output Current
Supply Current
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.
5. Output swing limited by the maximum output sink capability, refer to the short-circuit current vs. temperature graph in “Typical Characteristics.”
Condition
Min
Typ
1
4
1.5
Max
10
Units
mV
µV/°C
4
8
2
3
+7.5
µA
µA
µA
µA
V
dB
dB
V
V
–7.5
80
65
+7.2
+6.8
–7.4
105
80
120
80
22
1.35
112
80
+7.4
–7.2
–6.8
V
V
MHz
MHz
V/µs
mA
mA
R
L
= 1kΩ
A
V
= 2, R
L
= 470Ω
source
sink
1.9
2.4
mA
mA
September 2007
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M9999-091307
Micrel, Inc.
MIC911
Test Circuits
V
CC
10µF
V
CC
0.1µF
Input
BNC
R2
5k
10µF
0.1µF
10k
10k
2k
4
2
BNC
MIC911
3
5
1
BNC
Input
R1 5k
R7c 2k
4
2
0.1µF
1
BNC
Output
MIC911
3
5
Output
10k
0.1µF
R6
Input
BNC
0.1µF
0.1µF
All resistors 1%
5k
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
MIC911
3
5
R5
R4 27k
0.1µF
To
Dynamic
Analyzer
10pF
V
EE
10µF
Noise Measurement
September 2007
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M9999-091307
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