MIC910BM5TR [MICROCHIP]
Operational Amplifier, 1 Func, 15000uV Offset-Max, PDSO5, SOT-23, 5 PIN;
| 型号： | MIC910BM5TR |
| 厂家： | 
MICROCHIP |
| 描述： | Operational Amplifier, 1 Func, 15000uV Offset-Max, PDSO5, SOT-23, 5 PIN 放大器 光电二极管 |
| 文件： | 总12页 (文件大小：132K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MIC910
135MHz Low-Power SOT-23-5 Op Amp
Final Information
General Description
Features
The MIC910 is a high-speed, unity-gain stable operational
amplifier. It provides a gain-bandwidth product of 135MHz
with a very low, 2.4mA supply current, and features the tiny
SOT-23-5 package.
• 135MHz gain bandwidth product
• 2.4mA supply current
• Unconditionally unity-gain stable
• SOT-23-5 package
• 270V/µs slew rate
• drives any capacitive load
Supply voltage range is from ±2.5V to ±9V, allowing the
MIC910 to be used in low-voltage circuits or applications
requiring large dynamic range.
Applications
• Video
• Imaging
• Ultrasound
• Portable equipment
• Line drivers
The MIC910 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 ,
lowpowerconsumption,andsmallpackingmaketheMIC910
ideal for portable equipment. The ability to drive capacitative
loads also makes it possible to drive long coaxial cables.
Ordering Information
Part Number
Junction Temp. Range
Package
MIC910BM5
–40°C to +85°C
SOT-23-5
Pin Configuration
Functional Pinout
IN+ V+ OUT
IN+ V+ OUT
3
2
1
3
2
1
Part
Identification
A21
4
5
4
5
IN–
V–
IN–
V–
SOT-23-5
SOT-23-5
Pin Description
Pin Number
Pin Name
Pin Function
1
2
3
4
5
OUT
V+
Output: Amplifier Output
Positive Supply (Input)
Noninverting Input
IN+
IN–
V–
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
March 2001
1
MIC910
MIC910
Micrel
Absolute Maximum Ratings (Note 1)
Operating Ratings (Note 2)
Supply Voltage (V – V )...........................................20V
Supply Voltage (V ) ....................................... ±2.5V to ±9V
V+
V–
S
Differentail Input Voltage ( V
– V
) ..........8V, Note 4
Junction Temperature (T ) ......................... –40°C to +85°C
IN+
IN–
J
Input Common-Mode Range (V , V ) .......... V to V
Package Thermal Resistance ...............................260°C/W
IN+
IN–
V+
V–
Lead Temperature (soldering, 5 sec.) ....................... 260°C
Storage Temperature (T ) ........................................ 150°C
S
ESD Rating, Note 3 ................................................... 1.5kV
Electrical Characteristics (±5V)
VV+ = +5V, VV– = –5V, VCM = 0V, VOUT = 0V; RL = 10MΩ; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +85°C; unless noted.
Symbol
VOS
Parameter
Condition
Min
Typ
1
Max
15
Units
mV
Input Offset Voltage
VOS
Input Offset Voltage
Temperature Coefficient
4
µV/°C
IB
Input Bias Current
3.5
5.5
9
µA
µA
IOS
Input Offset Current
0.05
3
µA
VCM
Input Common-Mode Range
Common-Mode Rejection Ratio
CMRR > 60dB
–3.25
+3.25
V
CMRR
–2.5V < VCM < +2.5V
70
60
90
81
dB
dB
PSRR
AVOL
Power Supply Rejection Ratio
Large-Signal Voltage Gain
±5V < VS < ±9V
74
70
dB
dB
RL = 2k, VOUT = ±2V
RL = 200Ω, VOUT = ±2V
positive, RL = 2kΩ
60
60
71
71
dB
dB
VOUT
Maximum Output Voltage Swing
+3.3
+3.0
3.5
V
V
negative, RL = 2kΩ
positive, RL = 200Ω
negative, RL = 200Ω
–3.5
3.2
–3.3
–3.0
V
V
+3.0
+2.75
V
V
–2.8
–2.45
–2.2
V
V
GBW
BW
Gain-Bandwidth Product
–3dB Bandwidth
RL = 1kΩ
125
192
230
72
MHz
MHz
V/µs
mA
AV = 1, RL = 100Ω
SR
Slew Rate
IGND
Short-Circuit Output Current
source
sink
25
mA
IGND
Supply Current
2.4
3.5
4.1
mA
mA
Electrical Characteristics
VV+ = +9V, VV– = –9V, VCM = 0V, VOUT = 0V; RL = 10MΩ; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +85°C; unless noted
Symbol
VOS
Parameter
Condition
Min
Typ
1
Max
15
Units
mV
Input Offset Voltage
VOS
Input Offset Voltage
Temperature Coefficient
4
µV/°C
IB
Input Bias Current
3.5
5.5
9
µA
µA
IOS
Input Offset Current
0.05
3
µA
MIC910
2
March 2001
MIC910
Micrel
Symbol
VCM
Parameter
Condition
Min
Typ
Max
Units
Input Common-Mode Range
Common-Mode Rejection Ratio
CMRR > 60dB
–6.5V < VCM < 6.5V
–7.25
+7.25
V
CMRR
70
60
98
dB
dB
AVOL
VOUT
Large-Signal Voltage Gain
RL = 2kΩ, VOUT = ±6V
positive, RL = 2kΩ
60
73
dB
Maximum Output Voltage Swing
+7.2
+6.8
+7.4
V
V
negative, RL = 2kΩ
RL = 1kΩ
–7.4
–7.2
–6.8
V
V
GBW
SR
Gain-Bandwidth Product
Slew Rate
135
270
90
MHz
V/µs
mA
IGND
Short-Circuit Output Current
source
sink
32
mA
IGND
Supply Current
2.5
3.7
4.3
mA
mA
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. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
Note 4. 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
VCC
10µF
VCC
0.1µF
R2
5k
50Ω
BNC
Input
10µF
0.1µF
2k
BNC
R1 5k
R7c 2k
10k
4
3
0.1µF
4
2
2
Input
BNC
BNC
1
1
MIC910
Output
MIC910
Output
10k
3
R7b 200Ω
R7a 100Ω
10k
5
5
0.1µF
50Ω
R6
5k
0.1µF
50Ω
BNC
R3
200k
R5
5k
10µF
Input
VEE
All resistors 1%
0.1µF
10µF
R4
250Ω
All resistors:
1% metal film
R2 R2 +R5 +R4
V
=V
1+
+
OUT
ERROR
VEE
R1
R7
CMRR vs. Frequency
100pF
R2 4k
PSRR vs. Frequency
VCC
10µF
10pF
R1
20Ω
R3 27k
4
0.1µF
2
BNC
To
Dynamic
Analyzer
S1
S2
1
MIC910
3
5
0.1µF
R5
20Ω
R4 27k
10pF
10µF
VEE
Noise Measurement
March 2001
3
MIC910
MIC910
Micrel
Electrical Characteristics
Supply Current
vs. Temperature
Offset Voltage
vs. Temperature
Supply Current
vs. Supply Voltage
4.0
3.5
3.0
2.5
2.0
2.5
2.0
1.5
1.0
3.5
VSUPPLY = ±5V
+85°C
VSUPPLY = ±9V
3.0
+25°C
VSUPPLY = ±5V
VSUPPLY = ±9V
2.5
-40°C
2.0
-40 -20
0
20 40 60 80 100
-40 -20
0
20 40 60 80 100
2
3
4
5
6
7
8
9
10
TEMPERATURE (°C)
TEMPERATURE (°C)
SUPPLY VOLTAGE (±V)
Bias Current
vs. Temperature
Offset Voltage
vs. Common-Mode Voltage
Offset Voltage
vs. Common-Mode Voltage
5
6
5
4
3
2
1
0
5
4
3
2
1
0
VSUPPLY = ±9V
VSUPPLY = ±5V
4
3
2
+85°C
VSUPPLY = ±5V
+85°C
-40°C
-40°C
+25°C
VSUPPLY = ±9V
+25°C
1
-40 -20
0
20 40 60 80 100
-8 -6 -4 -2
0
2
4
6
8
-5 -4 -3 -2 -1 0 1 2 3 4 5
TEMPERATURE (°C)
COMMON-MODE VOLTAGE (V)
COMMON-MODE VOLTAGE (V)
Short-Circuit Current
vs. Temperature
Short-Circuit Current
vs. Temperature
Short-Circuit Current
vs. Supply Voltage
95
90
85
80
75
70
65
60
55
-20
-25
-30
-35
-40
100
80
60
40
20
VSUPPLY = ±9V
VSUPPLY = ±5V
-40°C
+25°C
+85°C
SOURCING
CURRENT
SINKING
CURRENT
VSUPPLY = ±5V
SOURCING
CURRENT
VSUPPLY = ±9V
-40 -20
0
20 40 60 80 100
-40 -20
0
20 40 60 80 100
2
3
4
5
6
7
8
9
10
TEMPERATURE (°C)
TEMPERATURE (°C)
SUPPLY VOLTAGE (±V)
Short-Circuit Current
vs. Supply Voltage
Output Voltage
vs. Output Current
Output Voltage
vs. Output Current
-15
-20
-25
-30
-35
-40
10
9
8
7
6
5
4
3
2
1
0
0
-1
SINKING
VSUPPLY = ±9V
CURRENT
-40°C
-2
-3
+85°C
-40°C
+85°C
-4
+25°C
-5
+25°C
-40°C
-6
-7
-8
+85°C
+25°C
SINKING
SOURCING
VSUPPLY = ±9V
-30 -20
-9
CURRENT
CURRENT
-10
2
3
4
5
6
7
8
9
10
0
20
40
60
80
100
-40
-10
OUTPUT CURRENT (mA)
0
SUPPLY VOLTAGE (±V)
OUTPUT CURRENT (mA)
MIC910
4
March 2001
MIC910
Micrel
Output Voltage
vs. Output Current
Output Voltage
vs. Output Current
Gain Bandwidth and
Phase Margin vs. Load
150
125
100
75
46
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
-3.5
-4.0
-4.5
SINKING
CURRENT
VSUPPLY = ±5V
44
42
40
38
36
34
-40°C
+25°C
VSUPPLY = ±5V
+25°C
50
+85°C
-40°C
25
SOURCING
CURRENT
+85°C
VSUPPLY = ±5V
0
0
20
40
60
80
-30 -25 -20 -15 -10 -5
OUTPUT CURRENT (mA)
0
0
200 400 600 800 1000
CAPACITIVE LOAD (pF)
OUTPUT CURRENT (mA)
Gain Bandwidth and
Phase Margin vs. Load
Gain Bandwidth and
Phase Margin vs. Supply Voltage
Common-Mode
Rejection Ratio
150
125
100
75
46
150
125
100
75
54
52
50
48
46
44
42
120
100
80
60
40
20
0
44
42
40
38
36
34
VSUPPLY = ±9V
50
50
VSUPPLY = ±9V
25
25
0
0
0
200 400 600 800 1000
CAPACITIVE LOAD (pF)
2
3
4
5
6
7
8
9
10
SUPPLY VOLTAGE (±V)
FREQUENCY (Hz)
Common-Mode
Rejection Ratio
Negative Power Supply
Rejection Ratio
Positive Power Supply
Rejection Ratio
120
100
80
60
40
20
0
100
80
60
40
20
0
100
80
60
40
20
0
VSUPPLY = ±9V
VSUPPLY = ±9V
VSUPPLY = ±5V
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
Positive Power Supply
Rejection Ratio
Negative Power Supply
Rejection Ratio
100
80
60
40
20
0
100
80
60
40
20
0
VSUPPLY = ±5V
VSUPPLY = ±5V
FREQUENCY (Hz)
FREQUENCY (Hz)
March 2001
5
MIC910
MIC910
Micrel
Closed-Loop
Frequency Response
Test Circuit
Closed-Loop
Frequency Response
Open-Loop
Frequency Response
50
40
50
40
225
VCC
180
135
90
RL=100Ω
10µF
30
30
20
20
10
10
45
0.1µF
0
0
0
No Load
-10
-20
-30
-40
-50
-10
-20
-30
-40
-50
-45
-90
-135
-180
-225
FET probe
MIC910
VCC = ±2.5V
VCC = ±5V
CL
RF
1
10
100 200
1
10
100 200
50Ω
FREQUENCY (MHz)
FREQUENCY (MHz)
10µF
VEE
Closed-Loop
Frequency Response
Open-Loop
Frequency Response
50
40
50
40
225
180
135
90
RL=100Ω
30
30
20
20
10
10
45
No Load
0
0
0
-10
-20
-30
-40
-50
-10
-20
-30
-40
-50
-45
-90
-135
-180
-225
VCC = ±5V
VCC = ±9V
1
10
100 200
1
10
100 200
FREQUENCY (MHz)
FREQUENCY (MHz)
Voltage
Noise
Positive
Slew Rate
Negative
Slew Rate
120
100
80
60
40
20
0
250
200
150
100
50
250
200
150
100
50
VCC = ±5V
VCC = ±5V
0
0
0
200 400 600 800 1000
LOAD CAPACITANCE (pF)
0
200 400 600 800 1000
LOAD CAPACITANCE (pF)
FREQUENCY (Hz)
Current
Noise
Positive
Slew Rate
Negative
Slew Rate
5
4
3
2
1
0
300
250
200
150
100
50
300
250
200
150
100
50
VCC = ±9V
VCC = ±9V
0
0
0
200 400 600 800 1000
LOAD CAPACITANCE (pF)
0
200 400 600 800 1000
LOAD CAPACITANCE (pF)
FREQUENCY (Hz)
MIC910
6
March 2001
MIC910
Micrel
Small-Signal
Small-Signal
Pulse Response
Pulse Response
VCC = ±9V
AV = 1
CL = 1.7pF
RL = 10MΩ
VCC = ±5V
AV = 1
CL = 1.7pF
RL = 10MΩ
Small-Signal
Pulse Response
Small-Signal
Pulse Response
VCC = ±9V
AV = 1
CL = 100pF
RL = 10MΩ
VCC = ±5V
AV = 1
CL = 100pF
RL = 10MΩ
Small-Signal
Pulse Response
Small-Signal
Pulse Response
VCC = ±9V
AV = 1
CL = 1000pF
RL = 10MΩ
VCC = ±5V
AV = 1
CL = 1000pF
RL = 10MΩ
March 2001
7
MIC910
MIC910
Micrel
Large-Signal
Pulse Response
Large-Signal
Pulse Response
VCC = ±5V
AV = 1
CL = 1.7pF
VCC = ±9V
AV = 1
CL = 1.7pF
∆V = 5.68V
∆t = 24.5ns
∆V = 5.64V
∆t = 21ns
Large-Signal
Pulse Response
Large-Signal
Pulse Response
VCC = ±5V
AV = 1
∆V = 5.84V
∆t = 22.5ns
CL = 100pF
∆V = 5.84V
∆t = 26ns
VCC = ±9V
AV = 1
CL = 100pF
Large-Signal
Pulse Response
Large-Signal
Pulse Response
VCC = ±5V
AV = 1
CL = 1000pF
∆V = 5.88V
∆t = 70ns
∆V = 5.48V
∆t = 95ns
VCC = ±9V
AV = 1
CL = 1000pF
MIC910
8
March 2001
MIC910
Micrel
Power Supply Bypassing
Applications Information
Regular supply bypassing techniques are recommended. A
10µF capacitor in parallel with a 0.1µF capacitor on both the
positive and negative supplies are ideal. For best perfor-
mance all bypassing capacitors should be located as close to
the op amp as possible and all capacitors should be low ESL
(equivalent series inductance), ESR (equivalent series resis-
tance). Surface-mount ceramic capacitors are ideal.
The MIC910 is a high-speed, voltage-feedback operational
amplifier featuring very low supply current and excellent
stability. This device is unity gain stable and capable of
driving high capacitance loads.
Driving High Capacitance
The MIC910 is stable when driving any capacitance (see
“Typical Characteristics: Gain Bandwidth and Phase Margin
vs. LoadCapacitance”)makingitidealfordrivinglongcoaxial
cables or other high-capacitance loads.
Thermal Considerations
The SOT-23-5 package, like all small packages, has a high
thermal resistance. It is important to ensure the IC does not
exceed the maximum operating junction (die) temperature of
85°C. The part can be operated up to the absolute maximum
temperature rating of 125°C, but between 85°C and 125°C
performance will degrade, in particular CMRR will reduce.
Phase margin remains constant as load capacitance is
increased. Most high-speed op amps are only able to drive
limited capacitance.
Note: increasing load capacitance does reduce the
speed of the device (see “Typical Characteris-
tics: Gain Bandwidth and Phase Margin vs.
Load”). In applications where the load capaci-
tance reduces the speed of the op amp to an
unacceptable level, the effect of the load capaci-
tance can be reduced by adding a small resistor
(<100Ω) in series with the output.
A MIC910 with no load, dissipates power equal to the quies-
cent supply current * supply voltage
P
= V −V
I
S
D(noload)
V+
V−
When a load is added, the additional power is dissipated in
the output stage of the op amp. The power dissipated in the
device is a function of supply voltage, output voltage and
output current.
Feedback Resistor Selection
Conventional op amp gain configurations and resistor selec-
tion apply, the MIC910 is NOT a current feedback device.
Resistor values in the range of 1k to 10k are recommended.
PD(output stage) = V −VOUT
I
OUT
(
)
V+
Layout Considerations
Total Power Dissipation = P
+P
D(output stage)
D(noload)
All high speed devices require careful PCB layout. The high
stability and high PSRR of the MIC910 make this op amp
easier to use than most, but the following guidelines should
be observed: Capacitance, particularly on the two inputs pins
will degrade performance; avoid large copper traces to the
inputs. Keep the output signal away from the inputs and use
a ground plane.
Ensure the total power dissipated in the device is no greater
than the thermal capacity of the package. The SOT23-5
package has a thermal resistance of 260°C/W.
TJ(max) −TA(max)
Max.AllowablePower Dissipation =
260W
It is important to ensure adequate supply bypassing capaci-
tors are located close to the device.
March 2001
9
MIC910
MIC910
Micrel
MIC910
10
March 2001
MIC910
Micrel
Package Information
1.90 (0.075) REF
0.95 (0.037) REF
1.75 (0.069) 3.00 (0.118)
1.50 (0.059) 2.60 (0.102)
DIMENSIONS:
MM (INCH)
1.30 (0.051)
0.90 (0.035)
3.02 (0.119)
2.80 (0.110)
0.20 (0.008)
0.09 (0.004)
10°
0°
0.15 (0.006)
0.00 (0.000)
0.50 (0.020)
0.35 (0.014)
0.60 (0.024)
0.10 (0.004)
SOT-23-5 (M5)
March 2001
11
MIC910
MIC910
Micrel
MICREL INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL + 1 (408) 944-0800 FAX + 1 (408) 944-0970 WEB http://www.micrel.com
This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or
other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc.
© 2001 Micrel Incorporated
MIC910
12
March 2001
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