MIC860
Micrel, Inc.
MIC860
Teeny™ Ultra Low Power Op Amp
General Description
The MIC860 is a rail-to-rail output, operational amplifier
in
Teeny™
SC70 packaging. The MIC860 provides 4MHz
gain-bandwidth product while consuming an incredibly low
30µA supply current.
The SC70 packaging achieves significant board space savings
over devices packaged in SOT-23 or MSOP-8 packaging.
The SC70 occupies approximately half the board area of a
SOT-23 package.
Features
•
•
•
•
•
•
•
Teeny™
SC70 packaging
4MHz gain-bandwidth product
30µA supply current
Rail-to-Rail output
Ground sensing at input common mode to GND
Common mode to GND
Drive large capactive loads
Applications
•
•
•
•
•
Portable equipment
PDAs
Pagers
Cordless Phones
Consumer Electronics
Ordering Information
Part Number
Standard
MIC860BC5
Marking
A32
Pb-Free
MIC860YC5
Marking*
A32
Ambient
Temp. Range
–40ºC to +85ºC
Package
SC-70-5
* Underbar marking may not be to scale.
Pin Configuration
Functional Pinout
IN−
3
V−
2
IN+
1
A32
4
5
Part
Identification
IN−
V−
3
IN+
1
2
OUT
V+
4
5
OUT
V+
SC-70
Teeny
is a 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
February 2006
1
M9999-022706
MIC860
Micrel, Inc.
Absolute Maximum Ratings
(Note 1)
Supply Voltage (V
V+
– V–) .......................................... +6.0V
Differentail Input Voltage (V
IN+
– V
IN–
),
Note 4 ...... +6.0V
Input Voltage (V
IN+
– V
IN–
) ...................V
+
+ 0.3V, V
–
–0.3V
Lead Temperature (soldering, 5 sec.) ........................ 260°C
Output Short Circuit Current Duration ...................Indefinite
Storage Temperature (T
S
) ......................................... 150°C
ESD Rating,
Note 3
Operating Ratings
(Note 2)
Supply Voltage (V+ – V–) ........................ +2.43V to +5.25V
Ambient Temperature Range...................... –40°C to +85°C
Package Thermal Resistance................................ 450°C/W
Electrical Characteristics
V+ = +2.7V, V– = 0V, V
CM
= V+/2; R
L
= 500kΩ to V+/2; T
A
= 25°C, unless otherwise noted.
Bold
values indicate –40°C≤ T
A
≤ +85°C.
Symbol
Parameter
Condition
Min
Typ
Max
Units
V
OS
Input Offset Voltage
Input Offset Voltage Temp Coefficient
I
B
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
CMRR > 60dB
Supply voltage change of 3V
R
L
= 100k, V
OUT
2V peak to peak
Maximum Output Voltage Swing
Minimum Output Voltage Swing
Gain-Bandwidth Product
Slew Rate
Short-Circuit Output Current
Supply Current
Source
Sink
No Load
4.5
10
R
L
= 500k, V
OUT
2V peak to peak
R
L
= 500k
R
L
= 500k
R
L
= 5k
R
L
= 5k
R
L
= 5k, V
OUT
2V peak to peak
0 < V
CM
< 1.35V
1
38
40
50
66
76
I
OS
–20
–25
20
20
10
1.8
76
78
66
81
91
–5
15
20
mV
mV
µV/°C
pA
pA
V
dB
dB
dB
dB
dB
V
V
mV
mV
MHz
V/µs
mA
mA
50
µA
V
CM
CMRR
PSRR
A
VOL
V
OUT
V
OUT
GBW
SR
I
SC
I
S
V+–70mV
V+–34mV
V+–2mV
V+–0.7mV
V–+11mV
V–+ 50mV
V–+0.2mV
V–+ 2mV
4
3
6
16
30
V
OS
I
B
V+= +5V, V–= 0V, V
CM
= V+/2; R
L
= 500kΩ to V+/2; T
A
= 25°C, unless otherwise noted.
Bold
values indicate –40°C≤ T
A
≤ +85°C.
Input Offset Voltage
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
CMRR > 60dB
Supply voltage change of 1V
R
L
= 100k, V
OUT
4.8V peak to peak
R
L
= 500k, V
OUT
4.8V peak to peak
R
L
= 5k, V
OUT
4.8V peak to peak
0 < V
CM
< 3.5V
3.5
44
40
52
67
75
–20
–5
20
Input Offset Voltage Temp Coefficient
20
20
10
4.2
77
79
66
80
90
mV
µV/°C
pA
pA
V
dB
dB
dB
dB
dB
I
OS
V
CM
CMRR
PSRR
A
VOL
M9999-022706
2
February 2006
MIC860
Symbol
V
OUT
V
OUT
GBW
SR
I
SC
I
S
Note 1.
Note 2.
Note 3.
Note 4.
Micrel, Inc.
Parameter
Maximum Output Voltage Swing
Minimum Output Voltage Swing
Gain-Bandwidth Product
Slew Rate
Short-Circuit Output Current
Supply Current
Source
Sink
No Load
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. Pin 4 is ESD sensetive
Exceeding the maximum differential input voltage will damage the input stage and degrade performance (in particular, input bias current is
likely to increase.
Condition
R
L
= 500k
R
L
= 500k
R
L
= 5k
R
L
= 5k
Min
V+–35mV
Typ
V+–4mV
Max
Units
V
V
mV
mV
MHz
V/µs
mA
mA
V+–75mV
V+–37mV
V–+14mV
V–+ 40mV
V–+0.4mV
V–+ 5mV
4
3
15
30
23
47
33
55
µA
February 2006
3
M9999-022706
MIC860
Micrel, Inc.
Test Circuits
Test Circuit 1. A
V
= 10
Test Circuit 2. A
V
= 2
Test Circuit 3. A
V
= 1
V+
10µF
100µF
Test Circuit 4. A
V
= –1
Input
BNC
50Ω
10µF
48k
10k
50Ω
0.1µF
4
170k
2
10k
3
MIC860
5
1
BNC
Output
0.1µF
All resistors:
1% metal film
100µF
10µF
V—
Test Circuit 5. Positive Power Supply Rejection Ratio Measurement
M9999-022706
4
February 2006
MIC860
Micrel, Inc.
Typical Characteristics
Supply Current
vs. Temperature
39
37
35
33
31
29
27
-3
-3.5
5V
Offset Voltage
vs. Temperature
5V
30
25
20
Short Circuit Current (source)
vs. Temperature
-4
-4.5
2.7V
5V
15
10
5
2.7V
2.7V
-5
-5.5
-6
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
25
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
0
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
Short Circuit Current (sink)
vs. Temperature
0
-10
-20
-30
-40
-50
-60
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
5V
2.7V
41
39
37
35
33
Supply Current vs.
Supply Voltage
-40°C
31 +25°C
29
27 +85°C
25
0.5
V+ = 5V
1
1.5
2
2.5
3
SUPPLY VOLTAGE (±V)
5
4.5
4
-40°C
3.5
3
2.5
2
+25°C
1.5
1
0.5 V+ = 5V
+85°C
0
0
5
10 15 20 25 30
OUTPUT CURRENT (mA)
Output Voltage vs.
Output Current (Sourcing)
6
5
4
3
2
1
0
0
Output Voltage vs.
Output Current (Sinking)
+85°C
+25°C
-40°C
30
25
20
15
10
5
Short Circuit Current vs.
Supply Voltage (Sourcing)
-40°C
60
50
Short Circuit Current vs.
Supply Voltage (Sinking)
-40°C
+25°C
+85°C
40
30
20
10
+25°C
+85°C
V+ = 5V
10 20 30 40 50 60
OUTPUT CURRENT (mA)
0
0
V+ = 5V
0.5 1 1.5 2 2.5 3
SUPPLY VOLTAGE (±V)
0
0
V+ = 5V
0.5 1 1.5 2 2.5 3
SUPPLY VOLTAGE (±V)
2.5
2
1.5
1
0.5
Offset Voltage vs.
Common-Mode Voltage
V+ = 5V
-40°C
+25°C
+85°C
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
COMMON-MODE VOLTAGE (V)
2.2
2.0
1.8
-40°C
1.6
1.4
1.2
+25°C
1.0
0.8
+85°C
0.6
0.4
0.2 Supply = 2.7V
0
0
0.54 1.08 1.62 2.16 2.7
COMMON-MODE VOLTAGE (V)
Offset Voltage vs.
Common-Mode Voltage
4.5
4
3.5
3
V
CC
= 5V
2.5
2
1.5
1
0.5
0
V = 2.7V
-0.5
CC
0.1
1
10 100 1000 10000
RESISTIVE LOAD (kΩ)
Output Voltage Swing vs.
Resistive Load (Sinking)
February 2006
5
M9999-022706
嵌入式系统
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