MIC912
Micrel
MIC912
200MHz Low-Power SOT-23-5 Op Amp
General Description
The MIC912 is a high-speed, unity-gain stable operational
amplifier. It provides a gain-bandwidth product of 200MHz
with a very low, 2.4mA supply current, and features the tiny
SOT-23-5 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 capacitative 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 capacitative
loads also makes it possible to drive long coaxial cables.
Features
•
•
•
•
•
200MHz gain bandwidth product
2.4mA supply current
SOT-23-5 package
360V/µs slew rate
drives any capacitive load
Applications
•
•
•
•
•
Video
Imaging
Ultrasound
Portable equipment
Line drivers
Ordering Information
Part Number
MIC912BM5
Junction Temp. Range
–40°C to +85°C
Package
SOT-23-5
Pin Configuration
IN+
3
Functional Pinout
V+ OUT
2
1
IN+
V+ OUT
2
1
Part
Identification
3
A23
4
5
4
5
IN–
V–
IN–
V–
SOT-23-5
SOT-23-5
Pin Description
Pin Number
1
2
3
4
5
Pin Name
OUT
V+
IN+
IN–
V–
Pin Function
Output: Amplifier Output
Positive Supply (Input)
Noninverting Input
Inverting Input
Negative Supply (Input)
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
June 2000
1
MIC912
MIC912
Micrel
Absolute Maximum Ratings
(Note 1)
Supply Voltage (V
V+
– V
V–
) ........................................... 20V
Differentail Input Voltage (V
IN+
– V
IN–
)
.......... 8V,
Note 4
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,
Note 3
................................................... 1.5kV
Operating Ratings
(Note 2)
Supply Voltage (V
S
) .......................................
±2.5V
to
±9V
Junction Temperature (T
J
) ......................... –40°C to +85°C
Package 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
V
OS
I
B
I
OS
V
CM
CMRR
PSRR
A
VOL
V
OUT
Parameter
Input Offset Voltage
Input Offset Voltage
Temperature Coefficient
Input Bias Current
Input Offset Current
Input Common-Mode Range
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
CMRR > 60dB
–2.5V < V
CM
< +2.5V
±5V
< V
S
<
±9V
R
L
= 2k, V
OUT
=
±2V
R
L
= 200Ω, V
OUT
=
±2V
Maximum Output Voltage Swing
positive, R
L
= 2kΩ
negative, R
L
= 2kΩ
positive, R
L
= 200Ω
negative, R
L
= 200Ω
GBW
BW
SR
I
GND
I
GND
Gain-Bandwidth Product
–3dB Bandwidth
Slew Rate
Short-Circuit Output Current
source
sink
Supply Current
R
L
= 1kΩ
A
V
= 1, R
L
= 100Ω
+3.0
+2.75
–3.25
70
60
74
70
60
60
+3.3
+3.0
90
81
71
71
3.5
–3.5
3.2
–2.8
170
150
325
72
25
2.4
3.5
4.1
–2.45
–2.2
–3.3
–3.0
Condition
Min
Typ
1
4
3.5
0.05
5.5
9
3
+3.25
Max
15
Units
mV
µV/°C
µA
µA
µA
V
dB
dB
dB
dB
dB
dB
V
V
V
V
V
V
V
V
MHz
MHz
V/µs
mA
mA
mA
mA
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
V
OS
I
B
I
OS
Parameter
Input Offset Voltage
Input Offset Voltage
Temperature Coefficient
Input Bias Current
Input Offset Current
Condition
Min
Typ
1
4
3.5
0.05
5.5
9
3
Max
15
Units
mV
µV/°C
µA
µA
µA
MIC912
2
June 2000
MIC912
Symbol
V
CM
CMRR
A
VOL
V
OUT
Parameter
Input Common-Mode Range
Common-Mode Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
Condition
CMRR > 60dB
–6.5V < V
CM
< 6.5V
R
L
= 2kΩ, V
OUT
=
±6V
positive, R
L
= 2kΩ
negative, R
L
= 2kΩ
GBW
SR
I
GND
I
GND
Note 1.
Note 2.
Note 3.
Note 4.
Micrel
Min
–7.25
70
60
60
+7.2
+6.8
98
73
+7.4
–7.4
200
360
source
sink
Supply Current
90
32
2.5
3.7
4.3
–7.2
–6.8
Typ
Max
+7.25
Units
V
dB
dB
dB
V
V
V
V
MHz
V/µs
mA
mA
mA
mA
Gain-Bandwidth Product
Slew Rate
Short-Circuit Output Current
R
L
= 1kΩ
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
Exceeding the maximum differential input voltage will damage the input stage and degrade performance (in particular, input bias current is
likely to increase).
Test Circuits
V
CC
10µF
V
CC
50Ω
BNC
0.1µF
R2
5k
10µF
Input
0.1µF
10k
10k
50Ω
BNC
2k
4
2
BNC
BNC
Input
Output
R1 5k
R7c 2k
R7b 200Ω
R7a 100Ω
R6
5k
4
2
0.1µF
1
BNC
MIC912
3
5
1
MIC912
3
5
Output
10k
0.1µF
0.1µF
50Ω
Input
0.1µF
R3
200k
R4
250Ω
R5
5k
V
EE
10µF
All resistors 1%
All resistors:
1% metal film
V
EE
10µF
R2 R2
+
R 5
+
R4
V
OUT
=
V
ERROR
1
+
+
R1
R7
100pF
V
CC
PSRR vs. Frequency
CMRR vs. Frequency
10µF
10pF
R1
20Ω
R2 4k
R3 27k
S1
S2
4
2
0.1µF
1
BNC
MIC912
3
5
To
Dynamic
Analyzer
R5
20Ω
R4 27k
0.1µF
10pF
V
EE
10µF
Noise Measurement
June 2000
3
MIC912
MIC912
Micrel
Electrical Characteristics
Supply Current
vs. Supply Voltage
3.5
SUPPLY CURRENT (mA)
Supply Current
vs. Temperature
4.0
OFFSET VOLTAGE (mV)
2.5
Offset Voltage
vs. Temperature
V
SUPPLY
=
±5V
2.0
SUPPLY CURRENT (mA)
+85°C
3.0
+25°C
3.5
V
SUPPLY
=
±9V
V
SUPPLY
=
±5V
3.0
2.5
-40°C
1.5
V
SUPPLY
=
±9V
2.5
2.0
2
3 4 5 6 7 8 9
SUPPLY VOLTAGE (±V)
10
2.0
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
1.0
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
Bias Current
vs. Temperature
5
Offset Voltage
vs. Common-Mode Voltage
6
OFFSET VOLTGE (mV)
OFFSET VOLTGE (mV)
5
4
+85°C
3
-40°C
2
1
+25°C
0
-8 -6 -4 -2 0 2 4 6 8
COMMON-MODE VOLTAGE (V)
V
SUPPLY
=
±9V
4
3
2
1
5
Offset Voltage
vs. Common-Mode Voltage
V
SUPPLY
=
±5V
BIAS CURRENT (µA)
4
V
SUPPLY
=
±5V
+85°C
3
-40°C
+25°C
2
V
SUPPLY
=
±9V
1
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
0
-5 -4 -3 -2 -1 0 1 2 3 4 5
COMMON-MODE VOLTAGE (V)
Short-Circuit Current
vs. Temperature
95
SUPPLY CURRENT (mA)
SUPPLY CURRENT (mA)
90
85
80
75
70
65
60
55
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
V
SUPPLY
=
±5V
SOURCING
CURRENT
V
SUPPLY
=
±9V
-20
Short-Circuit Current
vs. Temperature
100
V
SUPPLY
=
±5V
Short-Circuit Current
vs. Supply Voltage
OUTPUT CURRENT (mA)
-25
80
-40°C
+25°C
-30
SINKING
CURRENT
-35
V
SUPPLY
=
±9V
-40
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
60
+85°C
40
SOURCING
CURRENT
20
2
3 4 5 6 7 8 9
SUPPLY VOLTAGE (±V)
10
Short-Circuit Current
vs. Supply Voltage
-15
OUTPUT CURRENT (mA)
OUTPUT VOLTAGE (V)
-20
-25
-30
-35
SINKING
CURRENT
-40
2
+25°C
10
-40°C
+85°C
10
9
8
7
6
5
4
3
2
1
0
0
Output Voltage
vs. Output Current
OUTPUT VOLTAGE (V)
V
SUPPLY
=
±9V
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-40
Output Voltage
vs. Output Current
SINKING
CURRENT
-40°C
+25°C
+85°C
+25°C
-40°C
SOURCING
CURRENT
+85°C
V
SUPPLY
=
±9V
-30
-20
-10
OUTPUT CURRENT (mA)
0
3 4 5 6 7 8 9
SUPPLY VOLTAGE (±V)
20
40
60
80
100
OUTPUT CURRENT (mA)
MIC912
4
June 2000
MIC912
Micrel
Output Voltage
vs. Output Current
4.5
4.0
OUTPUT VOLTAGE (V)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
SOURCING
CURRENT
20
40
60
80
OUTPUT CURRENT (mA)
+85°C
-40°C
+25°C
OUTPUT VOLTAGE (V)
0
Output Voltage
vs. Output Current
-1
-2
-3
-4
-5
-6
-7
-8
+25°C
SINKING
CURRENT
-40°C
V
SUPPLY
=
±5V
-9 V
SUPPLY
=
±5V
+85°C
-10
-30 -25 -20 -15 -10 -5
OUTPUT CURRENT (mA)
0
Gain Bandwidth and
Phase Margin vs. Load
250
50
Gain Bandwidth and
Phase Margin vs. Supply Voltage
250
25
20
15
10
5
0
10
Common-Mode
Rejection Ratio
120
100
GAIN BANDWIDTH (MHz)
PHASE MARGIN (°)
PHASE MARGIN (°)
200
150
100
50
0
0
V
SUPPLY
=
±9V
GAIN BANDWIDTH (MHz)
40
30
20
10
0
200 400 600 800 1000
CAPACITIVE LOAD (pF)
200
150
100
50
0
2
CMRR (dB)
80
60
40
20
V
SUPPLY
=
±9V
1x10
2
1x10
3
1x10
4
1x10
5
1x10
6
1x10
6
1x10
6
3 4 5 6 7 8 9
SUPPLY VOLTAGE (±V)
FREQUENCY (Hz)
Common-Mode
Rejection Ratio
120
100
100
80
Positive Power Supply
Rejection Ratio
100
80
Negative Power Supply
Rejection Ratio
+PSRR (dB)
60
40
V
SUPPLY
=
±9V
20
0
–PSRR (dB)
CMRR (dB)
80
60
40
20
V
SUPPLY
=
±5V
60
40
V
SUPPLY
=
±9V
20
0
1x10
2
1x10
3
1x10
4
1x10
5
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
Positive Power Supply
Rejection Ratio
100
80
Negative Power Supply
Rejection Ratio
100
80
+PSRR (dB)
–PSRR (dB)
60
40
V
SUPPLY
=
±5V
20
0
60
40
V
SUPPLY
=
±5V
20
0
1x10
2
1x10
3
1x10
4
1x10
5
1x10
2
1x10
3
1x10
4
1x10
5
1x10
6
1x10
7
FREQUENCY (Hz)
FREQUENCY (Hz)
June 2000
5
1x10
7
1x10
7
1x10
2
1x10
3
1x10
4
1x10
5
1x10
6
1x10
7
1x10
2
1x10
3
1x10
4
1x10
5
1x10
6
1x10
7
0
1x10
7
0
MIC912
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