Micrel MIC916 Triple 135mhz low-power op amp Datasheet

MIC916
Micrel, Inc.
MIC916
Triple 135MHz Low-Power Op Amp
General Description
Features
The MIC916 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 per op amp.
Supply voltage range is from ±2.5V to ±9V, allowing the
MIC916 to be used in low-voltage circuits or applications
requiring large dynamic range.
The MIC916 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 MIC916
ideal for portable equipment. The ability to drive capacitative
loads also makes it possible to drive long coaxial cables.
•
•
•
•
•
135MHz gain bandwidth product
2.4mA supply current per op amp
QSOP-16 package
270V/µs slew rate
drives any capacitive load
Applications
•
•
•
•
Video
Imaging
Ultrasound
Portable equipment
Ordering Information
Part Number
Standard
Pb-Free
MIC916BQS
MIC916YQS
Junction
Temp. Range
Package
–40°C to +85°C
QSOP-16
Pin Configuration
INA-
1
16
V–(A)*
V+(A)
2
15
OUTA
INA+
3
14
V–(B)*
INB-
4
13
OUTB
INB+
5
12
V+(B)
INC-
6
11
V–(C)*
NC
7
10
OUTC
INC+
8
9
V+(C)
QSOP-16
* V– pins must be externally shorted together
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
April 2005
1
M9999-042205
MIC916
Micrel, Inc.
Pin Description
Pin Number
Pin Name
1
INA–
Inverting Input A
2
V+(A)
Positive Supply Input (Op Amp A)
3
INA+
Noninverting Input A
4
INB–
Inverting Input B
5
INB+
Noninverting Input B
6
INC–
Inverting Input C
7
NC
8
INC+
Noninverting Input C
9
V+(C)
Positive Supply Input (Op Amp C)
10
OUTC
Output C
11
V–(C)
Negative Supply Input (Op Amp C)
12
V+(B)
Positive Supply Input(Op Amp B)
13
OUTB
Output B
14
V–(B)
Negative Supply Input (Op Amp B)
15
OUTA
Output A
16
V–(A)
Negative Supply Input (Op Amp A)
M9999-042205
Pin Function
Not Connected
2
April 2005
MIC916
Micrel, Inc.
Absolute Maximum Ratings (Note 1)
Operating Ratings (Note 2)
Supply Voltage (VV+ – VV–) ........................................... 20V
Differentail Input Voltage (VIN+ – VIN–) .......... 8V, Note 4
Input Common-Mode Range (VIN+, VIN–) .......... VV+ to VV–
Lead Temperature (soldering, 5 sec.) ....................... 260°C
Storage Temperature (TS) ........................................ 150°C
ESD Rating, Note 3 ................................................... 1.5kV
Supply Voltage (VS) ....................................... ±2.5V to ±9V
Junction Temperature (TJ) ......................... –40°C to +85°C
Package Thermal Resistance ............................... 260°C/W
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
Parameter
VOS
Typ
Max
Units
Input Offset Voltage
1
15
mV
VOS
Input Offset Voltage
Temperature Coefficient
4
IB
Input Bias Current
3.5
5.5
9
µA
µA
IOS
Input Offset Current
0.05
3
µA
VCM
Input Common-Mode Range
CMRR > 60dB
+3.25
V
CMRR
Common-Mode Rejection Ratio
–2.5V < VCM < +2.5V
70
60
90
dB
dB
PSRR
Power Supply Rejection Ratio
±5V < VS < ±9V
74
70
81
dB
dB
AVOL
Large-Signal Voltage Gain
RL = 2k, VOUT = ±2V
60
71
dB
RL = 200Ω, VOUT = ±2V
60
71
dB
+3.3
+3.0
3.5
V
V
VOUT
Maximum Output Voltage Swing
Condition
Min
positive, RL = 2kΩ
–3.25
negative, RL = 2kΩ
positive, RL = 200Ω
–3.5
+3.0
+2.75
µV/°C
–3.3
–3.0
3.2
negative, RL = 200Ω
–2.8
V
V
V
V
–2.45
–2.2
V
V
GBW
Gain-Bandwidth Product
RL = 1kΩ
125
MHz
BW
–3dB Bandwidth
AV = 1, RL = 100Ω
192
MHz
SR
Slew Rate
230
V/µs
f = 1MHz, between op amp A and B or B and C
56
dB
f = 1 MHz, between op amp A and C
72
dB
source
72
mA
sink
25
mA
Crosstalk
IGND
IGND
Short-Circuit Output Current
Supply Current per Op Amp
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
Parameter
VOS
VOS
April 2005
Condition
Min
Typ
Max
Units
Input Offset Voltage
1
15
mV
Input Offset Voltage
Temperature Coefficient
4
3
µV/°C
M9999-042205
MIC916
Micrel, Inc.
Symbol
Parameter
IB
Condition
Typ
Max
Units
Input Bias Current
3.5
5.5
9
µA
µA
IOS
Input Offset Current
0.05
3
µA
VCM
Input Common-Mode Range
CMRR > 60dB
+7.25
V
CMRR
Common-Mode Rejection Ratio
–6.5V < VCM < 6.5V
70
60
98
dB
dB
AVOL
Large-Signal Voltage Gain
RL = 2kΩ, VOUT = ±6V
60
73
dB
VOUT
Maximum Output Voltage Swing
positive, RL = 2kΩ
+7.2
+6.8
+7.4
V
V
GBW
Gain-Bandwidth Product
SR
Slew Rate
Crosstalk
IGND
Short-Circuit Output Current
IGND
Min
–7.25
negative, RL = 2kΩ
–7.4
RL = 1kΩ
135
MHz
270
V/µs
f = 1MHz, between op amp A and B or B and C
56
dB
f = 1 MHz, between op amp A and C
72
dB
source
90
mA
sink
32
mA
Supply Current per Op Amp
2.5
–7.2
–6.8
V
V
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
R2
VCC
5k
10µF
10µF
BNC
50Ω
Input
0.1µF
BNC
R1 5k
Input
0.1µF
BNC
R3
200k
Output
All resistors 1%
50Ω
BNC
0.1µF
All resistors:
1% metal film
R5
5k
10µF
VEE
R4
250Ω
 R2 R2 + R 5 + R4 
VOUT = VERROR 1 +
+

 R1

R7
Input
50Ω
0.1µF
5k
BNC
10k
Output
R6
2k
10k
10k
0.1µF
R7c 2k
R7b 200Ω
R7a 100Ω
0.1µF
CMRR vs. Frequency
10µF
VEE
PSRR vs. Frequency
M9999-042205
4
April 2005
MIC916
Micrel, Inc.
100pF
10pF
R1
20Ω
VCC
R2 4k
10µF
R3 27k
0.1µF
BNC
S1
S2
R5
20Ω
To
Dynamic
Analyzer
0.1µF
R4 27k
10pF
10µF
VEE
Noise Measurement
April 2005
5
M9999-042205
MIC916
Micrel, Inc.
Electrical Characteristics
2.5
2.0
2
-40°C
3 4 5 6 7 8 9
SUPPLY VOLTAGE (±V)
10
3.5
VSUPPLY = ±9V
3.0
VSUPPLY = ±5V
2.5
Offset Voltage
vs. Common-Mode Voltage
OFFSET VOLTGE (mV)
BIAS CURRENT (µA)
2
VSUPPLY = ±9V
VSUPPLY = ±9V
1.5
Offset Voltage
vs. Common-Mode Voltage
6
3
2.0
1.0
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
5
VSUPPLY = ±5V
VSUPPLY = ±5V
2.0
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
Bias Current
vs. Temperature
4
OFFSET VOLTAGE (mV)
+25°C
2.5
5
VSUPPLY = ±9V
5
VSUPPLY = ±5V
OFFSET VOLTGE (mV)
+85°C
3.0
Offset Voltage
vs. Temperature
4.0
SUPPLY CURRENT (mA)
SUPPLY CURRENT (mA)
3.5
Supply Current
vs. Temperature
Supply Current
vs. Supply Voltage
4
+85°C
3
-40°C
2
1
4
3
2
1
+25°C
+25°C
0
-8 -6 -4 -2 0 2 4 6 8
COMMON-MODE VOLTAGE (V)
0
-5 -4 -3 -2 -1 0 1 2 3 4 5
COMMON-MODE VOLTAGE (V)
Short-Circuit Current
vs. Temperature
Short-Circuit Current
vs. Temperature
Short-Circuit Current
vs. Supply Voltage
80
SOURCING
CURRENT
70
65
VSUPPLY = ±5V
60
55
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
+85°C
-30
-35
SINKING
CURRENT
M9999-042205
-35
VSUPPLY = ±9V
-40
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
10
-40°C
-25
-40
2
SINKING
CURRENT
Short-Circuit Current
vs. Supply Voltage
-20
+25°C
3 4 5 6 7 8 9
SUPPLY VOLTAGE (±V)
10
VSUPPLY = ±5V
-30
OUTPUT VOLTAGE (V)
-15
-25
VSUPPLY = ±9V
7
6
5
4
+25°C
-40°C
3
2
SOURCING
CURRENT
+85°C
20
40
60
80
100
OUTPUT CURRENT (mA)
6
80
-40°C
+25°C
60
+85°C
40
SOURCING
CURRENT
20
2
Output Voltage
vs. Output Current
9
8
1
0
0
OUTPUT CURRENT (mA)
85
75
100
-20
VSUPPLY = ±9V
0
OUTPUT VOLTAGE (V)
90
SUPPLY CURRENT (mA)
SUPPLY CURRENT (mA)
-40°C
1
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
95
OUTPUT CURRENT (mA)
+85°C
3 4 5 6 7 8 9
SUPPLY VOLTAGE (±V)
Output Voltage
vs. Output Current
-1
-2
-3
-4
10
-40°C
SINKING
CURRENT
+85°C
+25°C
-5
-6
-7
-8
-9 VSUPPLY = ±9V
-10
-40
-30
-20
-10
OUTPUT CURRENT (mA)
0
April 2005
MIC916
Micrel, Inc.
0
0
SOURCING
CURRENT
-4.0
-4.5
-30
20
40
60
80
OUTPUT CURRENT (mA)
46
125
44
42
VSUPPLY = ±9V
40
50
38
25
36
0
0
GAIN BANDWIDTH (MHz)
150
100
+85°C
VSUPPLY = ±5V
-25 -20 -15 -10 -5
OUTPUT CURRENT (mA)
40
50
38
25
36
0
0
0
34
200 400 600 800 1000
CAPACITIVE LOAD (pF)
150
54
120
125
52
100
100
50
75
48
50
46
25
44
20
42
10
0
0
2
3 4 5 6 7 8 9
SUPPLY VOLTAGE (±V)
PHASE MARGIN (°)
75
Gain Bandwidth and
Phase Margin vs. Supply Voltage
PHASE MARGIN (°)
GAIN BANDWIDTH (MHz)
Gain Bandwidth and
Phase Margin vs. Load
75
-3.5
VSUPPLY = ±5V
34
200 400 600 800 1000
CAPACITIVE LOAD (pF)
Common-Mode
Rejection Ratio
80
60
40
VSUPPLY = ±9V
1x107
0.5
-3.0
42
100
1x106
-40°C
+25°C
44
1x105
+85°C
1.0
-2.5
125
1x102
1.5
-2.0
46
1x104
2.0
-1.5
150
1x103
+25°C
2.5
-40°C
CMRR (dB)
3.0
-1.0
GAIN BANDWIDTH (MHz)
3.5
SINKING
CURRENT
-0.5
PHASE MARGIN (°)
OUTPUT VOLTAGE (V)
0.0
VSUPPLY = ±5V
4.0
OUTPUT VOLTAGE (V)
4.5
Gain Bandwidth and
Phase Margin vs. Load
Output Voltage
vs. Output Current
Output Voltage
vs. Output Current
FREQUENCY (Hz)
VSUPPLY = ±9V
VSUPPLY = ±9V
1x107
1x106
1x102
1x107
1x106
FREQUENCY (Hz)
1x105
1x102
0
1x104
0
1x107
1x106
1x105
1x104
40
20
20
1x103
1x102
40
60
1x105
VSUPPLY = ±5V
20
60
1x104
40
–PSRR (dB)
60
0
80
80
80
+PSRR (dB)
CMRR (dB)
100
100
Negative Power Supply
Rejection Ratio
1x103
100
Positive Power Supply
Rejection Ratio
1x103
120
Common-Mode
Rejection Ratio
FREQUENCY (Hz)
FREQUENCY (Hz)
VSUPPLY = ±5V
-60
-70
-80
7
1x107
1x106
1x105
FREQUENCY (Hz)
1x108
-90
1x104
0
-50
-100
1x103
FREQUENCY (Hz)
1x107
1x106
1x105
1x104
1x103
20
-40
1x107
20
40
-30
1x106
VSUPPLY = ±5V
60
-20
1x105
40
1x102
CROSS TALK (dB)
–PSRR (dB)
+PSRR (dB)
-10
80
60
April 2005
0
100
80
0
Distant Channel
Cross Talk
Negative Power Supply
Rejection Ratio
1x102
100
Positive Power Supply
Rejection Ratio
FREQUENCY (Hz)
M9999-042205
MIC916
Micrel, Inc.
Adjacent Channel
Cross Talk
VCC
0
50
FET probe
MIC916
CL
RF
40
30
-20
-30
GAIN (dB)
0.1µF
CROSS TALK (dB)
-10
-40
-50
-60
0
-10
-40
-50
1
1x108
1x107
VEE
1x106
1x105
-90
10µF
20
10
-20
-30
-70
-80
50Ω
1000pF
500pF
200pF
100pF
50pF
10µF
Closed-Loop
Frequency Response
0p
Closed-Loop
Frequency Response
Test Circuit
VCC = ±2.5V
10
100 200
FREQUENCY (MHz)
FREQUENCY (Hz)
-180
-225
10
100 200
FREQUENCY (MHz)
250
SLEW RATE (V/µs)
100
60
40
No Load
0
-45
VCC = ±5V
-40
-50
1
10
100 200
FREQUENCY (MHz)
Positive
Slew Rate
VCC = ±5V
150
100
50
250
200
-90
-135
VCC = ±9V
-180
-225
10
100 200
FREQUENCY (MHz)
Negative
Slew Rate
VCC = ±5V
150
100
50
0
0
200 400 600 800 1000
LOAD CAPACITANCE (pF)
PHASE (°)
GAIN (dB)
90
45
20
10
0
-10
225
180
135
RL=100Ω
-20
-30
200
0
0
1x105
1x104
1x101
0
1x103
20
Open-Loop
Frequency Response
40
30
0
-10
-40
-50
1
Voltage
Noise
80
50
-20
-30
VCC = ±5V
1x102
 nV


Hz 
20
10
-90
-135
120
NOISE VOLTAGE
90
45
0
-45
No Load
-20
-30
-40
-50
1
40
30
SLEW RATE (V/µs)
0
-10
50
180
135
0p
20
10
225
Closed-Loop
Frequency Response
1000pF
500pF
200pF
100pF
50pF
RL=100Ω
GAIN (dB)
GAIN (dB)
40
30
PHASE (°)
50
Open-Loop
Frequency Response
200 400 600 800 1000
LOAD CAPACITANCE (pF)
FREQUENCY (Hz)
SLEW RATE (V/µs)
3
2
1
VCC = ±9V
200
150
100
1x105
1x104
50
1x103
1x101
0
Positive
Slew Rate
250
4
1x102


NOISE CURRENT pA

Hz 
300
0
0
300
250
SLEW RATE (V/µs)
Current
Noise
5
Negative
Slew Rate
VCC = ±9V
200
150
100
50
200 400 600 800 1000
LOAD CAPACITANCE (pF)
0
0
200 400 600 800 1000
LOAD CAPACITANCE (pF)
FREQUENCY (Hz)
M9999-042205
8
April 2005
MIC916
Micrel, Inc.
INPUT
Small-Signal
Pulse Response
VCC = ±9V
AV = 1
CL = 1.7pF
RL = 10MΩ
INPUT
Small-Signal
Pulse Response
Small-Signal
Pulse Response
INPUT
Small-Signal
Pulse Response
VCC = ±5V
AV = 1
CL = 1000pF
RL = 10MΩ
OUTPUT
VCC = ±9V
AV = 1
CL = 1000pF
RL = 10MΩ
OUTPUT
INPUT
VCC = ±5V
AV = 1
CL = 100pF
RL = 10MΩ
OUTPUT
VCC = ±9V
AV = 1
CL = 100pF
RL = 10MΩ
OUTPUT
INPUT
Small-Signal
Pulse Response
April 2005
VCC = ±5V
AV = 1
CL = 1.7pF
RL = 10MΩ
OUTPUT
OUTPUT
INPUT
Small-Signal
Pulse Response
9
M9999-042205
MIC916
Micrel, Inc.
Large-Signal
Pulse Response
Large-Signal
Pulse Response
VCC = ±5V
AV = 1
CL = 1.7pF
OUTPUT
OUTPUT
VCC = ±9V
AV = 1
CL = 1.7pF
∆V = 5.64V
∆t = 21ns
Large-Signal
Pulse Response
VCC = ±5V
AV = 1
CL = 100pF
∆V = 5.84V
∆t = 22.5ns
OUTPUT
OUTPUT
Large-Signal
Pulse Response
∆V = 5.68V
∆t = 24.5ns
VCC = ±9V
AV = 1
CL = 100pF
Large-Signal
Pulse Response
∆V = 5.84V
∆t = 26ns
Large-Signal
Pulse Response
∆V = 5.88V
∆t = 70ns
OUTPUT
OUTPUT
VCC = ±5V
AV = 1
CL = 1000pF
VCC = ±9V
AV = 1
CL = 1000pF
M9999-042205
10
∆V = 5.48V
∆t = 95ns
April 2005
MIC916
Micrel, Inc.
Power Supply Bypassing
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 performance 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 resistance). Surface-mount ceramic capacitors are ideal. All V–
pins must be externally shorted together.
Thermal Considerations
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.
A MIC916 with no load, dissipates power equal to the quiescent supply current * supply voltage
Applications Information
The MIC916 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 MIC916 is stable when driving any capacitance (see
“Typical Characteristics: Gain Bandwidth and Phase Margin
vs. Load Capacitance”) making it ideal for driving long coaxial
cables or other high-capacitance loads.
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 Characteristics: Gain Bandwidth and Phase Margin vs.
Load”). In applications where the load capacitance reduces the speed of the op amp to an
unacceptable level, the effect of the load capacitance can be reduced by adding a small resistor
(<100Ω) in series with the output.
Feedback Resistor Selection
Conventional op amp gain configurations and resistor selection apply, the MIC916 is NOT a current feedback device.
Resistor values in the range of 1k to 10k are recommended.
Layout Considerations
All high speed devices require careful PCB layout. The high
stability and high PSRR of the MIC916 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.
It is important to ensure adequate supply bypassing capacitors are located close to the device.
April 2005
(
)
PD(no load) = VV + − VV − IS
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.
(
)
PD(output stage) = VV + − VOUT IOUT
Total Power Dissipation = PD(no load) + PD(output stage)
Ensure the total power dissipated in the device is no greater
than the thermal capacity of the package. The QSOP-16
package has a thermal resistance of 260°C/W.
Max . Allowable Power Dissipation =
11
TJ (max) − TA(max)
TBD
W
M9999-042205
MIC916
Micrel, Inc.
Package Information
PIN 1
DIMENSIONS:
INCHES (MM)
0.157 (3.99)
0.150 (3.81)
0.009 (0.2286)
REF
0.025 (0.635)
BSC
0.0098 (0.249)
0.0040 (0.102)
0.012 (0.30)
0.008 (0.20)
0.0098 (0.249)
0.0075 (0.190)
0.196 (4.98)
0.189 (4.80)
SEATING 0.0688 (1.748)
PLANE 0.0532 (1.351)
45°
8°
0°
0.050 (1.27)
0.016 (0.40)
0.2284 (5.801)
0.2240 (5.690)
QSOP-16
MICREL INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL
+ 1 (408) 944-0800
FAX
+ 1 (408) 474-1000
WEB
http://www.micrel.com
This information furnished by Micrel in this data sheet is believed to be accurate and reliable. However no responsibility is assumed by Micrel for its use.
Micrel reserves the right to change circuitry and specifications at any time without notification to the customer.
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can
reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into
the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s
use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully indemnify
Micrel for any damages resulting from such use or sale.
© 2000 Micrel Incorporated
M9999-042205
12
April 2005
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