June 2000
1
MIC914
MIC914
Micrel
MIC914
160MHz Low-Power SOT-23-5 Op Amp
General Description
The MIC914 is a high-speed operational amplifier with a gain-
bandwidth product of 160MHz. The part is unity gain stable
provided its output is loaded with at least 200
. It has a very
low 1.25mA supply current, and features the IttyBitty
TM
SOT-23-5 package.
Supply voltage range is from
2.5V to 9V, allowing the
MIC914 to be used in low-voltage circuits or applications
requiring large dynamic range.
The MIC914 is stable driving any capacitative 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 MIC914 ideal for portable equipment. The ability to
drive capacitative loads also makes it possible to drive long
coaxial cables.
Features
160MHz gain bandwidth product
1.25mA supply current
SOT-23-5 package
160V/
s slew rate
drives any capacitive load
112dB CMRR
Applications
Video
Imaging
Ultrasound
Portable equipment
Line drivers
XDSL
Ordering Information
Part Number
Junction Temp. Range
Package
MIC914BM5
40
C to +85C
SOT-23-5
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
Pin Description
Pin Number
Pin Name
Pin Function
1
OUT
Output: Amplifier Output
2
V+
Positive Supply (Input)
3
IN+
Noninverting Input
4
IN
Inverting Input
5
V
Negative Supply (Input)
Pin Configuration
OUT
V+
IN
IN+
1
3
4
5
2
V
A26
Part
Identification
SOT-23-5
Functional Pinout
OUT
V+
IN
IN+
1
3
4
5
2
V
SOT-23-5
MIC914
Micrel
MIC914
2
June 2000
Absolute Maximum Ratings
(Note 1)
Supply Voltage (V
V+
V
V
) ........................................... 20V
Differentail Input Voltage (
V
IN+
V
IN
) .......... 4V, Note 3
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 4 ................................................... 1.5kV
Operating Ratings
(Note 2)
Supply Voltage (V
S
) .......................................
2.5V to 9V
Junction Temperature (T
J
) ......................... 40
C to +85C
Package Thermal Resistance ............................... 260
C/W
Electrical Characteristics (
5V)
V
V+
= +5V, V
V
= 5V, V
CM
= 0V, V
OUT
= 0V; R
L
= 10M
; T
J
= 25
C, bold values indicate 40C T
J
+85C; unless noted.
Symbol
Parameter
Condition
Min
Typ
Max
Units
V
OS
Input Offset Voltage
1
10
mV
V
OS
Input Offset Voltage
4
V/C
Temperature Coefficient
I
B
Input Bias Current
1.5
4
A
8
A
I
OS
Input Offset Current
2
A
0.03
3
A
V
CM
Input Common-Mode Range
CMRR > 60dB
3.5
+3.5
V
CMRR
Common-Mode Rejection Ratio
3V < V
CM
< +3V
80
110
dB
PSRR
Power Supply Rejection Ratio
5V < V
S
<
9V
75
88
dB
A
VOL
Large-Signal Voltage Gain
R
L
= 2k, V
OUT
=
2V
65
78
dB
R
L
= 200
, V
OUT
=
1V
65
78
dB
V
OUT
Maximum Output Voltage Swing
positive, R
L
= 2k
+3.3
3.5
V
+3.0
V
negative, R
L
= 2k
3.5
3.3
V
3.0
V
positive, R
L
= 200
+2.8
3.2
V
+2.5
V
negative, R
L
= 200
, Note 5
2.5
1.7
V
1.0
V
negative, R
L
= 200
, 25C T
J
+85C,
1.7
V
Note 5
GBW
Unity Gain-Bandwidth Product
R
L
= 1k
135
MHz
BW
3dB Bandwidth
A
V
= 2, R
L
= 470
155
MHz
SR
Slew Rate
135
V/
s
I
GND
Short-Circuit Output Current
source
65
mA
sink
17
mA
I
GND
Supply Current
1.25
1.8
mA
2.3
mA
Electrical Characteristics
V
V+
= +9V, V
V
= 9V, V
CM
= 0V, V
OUT
= 0V; R
L
= 10M
; T
J
= 25
C, bold values indicate 40C T
J
+85C; unless noted
Symbol
Parameter
Condition
Min
Typ
Max
Units
V
OS
Input Offset Voltage
1
10
mV
V
OS
Input Offset Voltage
4
V/C
Temperature Coefficient
I
B
Input Bias Current
1.5
4
A
8
A
June 2000
3
MIC914
MIC914
Micrel
Symbol
Parameter
Condition
Min
Typ
Max
Units
I
OS
Input Offset Current
2
A
0.03
3
A
V
CM
Input Common-Mode Range
CMRR > 60dB
7.5
+7.5
V
CMRR
Common-Mode Rejection Ratio
7V < V
CM
< 7V
80
112
dB
A
VOL
Large-Signal Voltage Gain
R
L
= 2k
, V
OUT
=
6V
65
80
dB
V
OUT
Maximum Output Voltage Swing
positive, R
L
= 2k
+7.2
+7.4
V
+6.8
V
negative, R
L
= 2k
7.4
7.2
V
6.8
V
GBW
Gain-Bandwidth Product
R
L
= 1k
160
MHz
BW
3dB Bandwidth
A
V
= 2, R
L
= 470
185
MHz
SR
Slew Rate
160
V/
s
I
GND
Short-Circuit Output Current
source
80
mA
sink
22
mA
I
GND
Supply Current
1.35
1.9
mA
2.4
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.
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."
MIC914
Micrel
MIC914
4
June 2000
Test Circuits
2k
10k
10k
10k
0.1
F
0.1
F
0.1
F
10
F
50
50
50
0.1
F
10
F
All resistors:
1% metal film
Output
Input
Input
V
CC
V
EE
MIC914
1
2
4
3
5
BNC
BNC
BNC
PSRR vs. Frequency
R2 4k
S2
S1
0.1
F
10
F
0.1
F
10
F
10pF
10pF
V
CC
V
EE
MIC914
1
2
4
3
5
BNC
R4 27k
R3 27k
R1
20
R5
20
100pF
To
Dynamic
Analyzer
Noise Measurement
0.1
F
10
F
0.1
F
10
F
V
CC
V
EE
MIC914
1
2
4
3
5
BNC
R7c 2k
R7b 200
R7a 100
Input
R6
5k
R2
5k
R3
200k
R4
250
R5
5k
Output
R1 5k
BNC
All resistors 1%
V
V
R2
R1
R2
R
R4
OUT
ERROR
=
+
+
+
+
1
5
R7
CMRR vs. Frequency
June 2000
5
MIC914
MIC914
Micrel
Electrical Characteristics
1.0
1.2
1.4
1.6
1.8
2.0
-40 -20
0
20
40
60
80 100
SUPPLY CURRENT (mA)
TEMPERATURE (
C)
Supply Current
vs. Temperature
V
SUPPLY
=
9V
V
SUPPLY
=
5V
-2.0
-1.5
-1.0
-0.5
0.0
-40 -20
0
20
40
60
80 100
OFFSET VOLTAGE (mV)
TEMPERATURE (
C)
Offset Voltage
vs. Temperature
V
SUPPLY
=
5V
V
SUPPLY
=
9V
0.5
1
1.5
2
2.5
-40 -20
0
20
40
60
80 100
BIAS CURRENT (
A)
TEMPERATURE (
C)
Bias Current
vs. Temperature
V
SUPPLY
=
5V
V
SUPPLY
=
9V
55
60
65
70
75
80
85
90
95
-40 -20
0
20
40
60
80 100
OUTPUT CURRENT (mA)
TEMPERATURE (
C)
Short-Circuit Current
vs. Temperature
V
SUPPLY
=
9V
V
SUPPLY
=
5V
SOURCING
CURRENT
-30
-25
-20
-15
-10
-40 -20
0
20
40
60
80 100
OUTPUT CURRENT (mA)
TEMPERATURE (
C)
Short-Circuit Current
vs. Temperature
V
SUPPLY
=
9V
V
SUPPLY
=
5V
SINKING
CURRENT
0.5
1.0
1.5
2.0
2
3
4
5
6
7
8
9
10
SUPPLY CURRENT (mA)
SUPPLY VOLTAGE (
V)
Supply Current
vs. Supply Voltage
+85
C
+25
C
-40
C
-1.25
-1.00
-0.75
-0.50
-0.25
-5 -4 -3 -2 -1 0
1
2
3
4
5
OFFSET VOLTGE (mV)
COMMON-MODE VOLTAGE (V)
Offset Voltage
vs. Common-Mode Voltage
+85
C
+25
C
-40
C
V
SUPPLY
=
5V
-1.5
-1.0
-0.5
-8
-6
-4
-2
0
2
4
6
8
OFFSET VOLTGE (mV)
COMMON-MODE VOLTAGE (V)
Offset Voltage
vs. Common-Mode Voltage
+85
C
+25
C
-40
C
V
SUPPLY
=
9V
20
40
60
80
100
2
3
4
5
6
7
8
9
10
OUTPUT CURRENT (mA)
SUPPLY VOLTAGE (
V)
Short-Circuit Current
vs. Supply Voltage
+85
C
+25
C
-40
C
SOURCING
CURRENT
-30
-25
-20
-15
-10
2
3
4
5
6
7
8
9
10
OUTPUT CURRENT (mA)
SUPPLY VOLTAGE (
V)
Short-Circuit Current
vs. Supply Voltage
+85
C
+25
C
-40
C
SINKING
CURRENT
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0
20
40
60
80
OUTPUT VOLTAGE (V)
OUTPUT CURRENT (mA)
Output Voltage
vs. Output Current
+85
C
+25
C
-40
C
SOURCING
CURRENT
V
SUPPLY
=
5V
-4.0
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
-25
-20
-15
-10
-5
0
OUTPUT VOLTAGE (V)
OUTPUT CURRENT (mA)
Output Voltage
vs. Output Current
+85
C
+25
C
-40
C
SINKING
CURRENT
V
SUPPLY
=
5V
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