MIC6251/6252
Micrel
MIC6251/6252
IttyBitty™ GainBlock™ Amplifiers
Final Information
General Description
The MIC6251 and MIC6252 are IttyBitty™ GainBlock™
amplifiers for use as follows:
MIC6251 ................................ +2, +1, –1 gain amplifier
MIC6252 .................................. +0.5, +1 gain amplifier;
average value amplifier
The MIC6251 and MIC6252 amplifiers operate from 4V to
32V. Both can use single or split supplies. These amplifiers
feature internal, well-matched, gain-setting resistors and an
input common-mode range that includes the negative supply
(ground).
The MIC6251/2 is available in the tiny SOT-23-5 surface
mount package.
Features
•
•
•
•
•
•
4V to 32V operation
Small footprint package
Internally compensated
2MHz bandwidth
6V/µs typical slew rate
Short circuit protected
Applications
• Analog building blocks
• Summing amplifier
• Gain block
Ordering Information
Part Number
MIC6251BM5
MIC6252BM5
Marking
A51
A52
Temperature
–40°C to +85°C
–40°C to +85°C
Range Package
SOT-23-5
SOT-23-5
Functional Configuration
IN+
3
20k
V–
2
OUT
1
20k
20k
20k
5
V+
4
IN–
20k
5
V+
IN+
3
V–
2
OUT
1
20k
20k
4
IN–
20k
MIC6251
MIC6252
Pin Configuration
IN+
3
V– OUT
2
1
Part Number
MIC6251BM5
MIC6252BM5
Identification
A51
A52
4
Axx
5
Part
Identification
IN–
V+
SOT-23-5 (M5)
IttyBitty and GainBlock are a trademarks of Micrel, Inc.
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
July 1998
1
MIC6251/6252
MIC6251/6252
Micrel
Pin Description
Pin Number
1
2
3
4
5
Pin Name
OUT
V–
IN+
IN–
V+
Pin Function
Amplifier Output
Negative Supply: Negative supply for split supply application or ground for
single supply application.
Noninverting Input: See “Electrical Characteristics:
Note 1.”
Inverting Input: See “Electrical Characteristics:
Note 1.”
Positive Supply
Absolute Maximum Ratings
Supply Voltage (V
V+
– V
V–
) ............................. 36V or
±18V
Differential Input Voltage (V
IN+
– V
IN–
) .......................
±36V
Input Voltage (V
IN+
, V
IN–
) ........................ V
V–
– 0.3V to V
V+
Output Short Circuit Current Duration ...............................∞
Junction Temperature (T
J
) ........................................ 150°C
Storage Temperature (T
S
) ....................... –65°C to +150°C
Lead Temperature (soldering, 10 sec.) ..................... 260°C
ESD,
Note 4
............................................................... [TBD]
Operating Ratings
Supply Voltage .................................................... 4V to 32V
Ambient Temperature Range ..................... –40°C to +85°C
SOT-23-5 Thermal Resistance (θ
JA
) ..................... 325°C/W
Electrical Characteristics (Differential Supply)
V
V+
= +15V, V
V–
= –15V; V
CM
= 0V,
Note 1;
T
A
= 25°C,
bold
values indicate –40°C
≤
T
A
≤
+85°C, T
A
= T
J
; unless noted.
Symbol
G
E
G
NL
V
OS
TCV
OS
I
B
V
CM
CMRR
PSRR
V
OUT
B
W
S
R
I
S
Note 1:
Note 2:
Note 3:
Note 4:
Parameter
Gain Error
Gain Non-linearity
Offset Voltage
Average Offset Drift
Input Bias Current
Input Voltage Range, Differential
Input Volt. Range, Common Mode
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Maximum Output Voltage Swing
Bandwidth
Slew Rate
Supply Current
Condition
MIC6251: A
V
= 2, V
O
=
±10V
MIC6252: A
V
= 0.5, V
O
=
±10V
MIC6251: A
V
= 2, V
O
=
±10V
MIC6252: A
V
= 0.5, V
O
=
±10V
MIC6251: Referred to output
MIC6252: Referred to output
Min
Typ
0.3
0.3
0.01
0.01
4
2
7
50
Max
0.5
0.5
Units
%
%
%
%
14
7
mV
mV
µV/°C
250
nA
V
V
dB
dB
V
MHz
V/µs
Note 3
±13.5
∆V
CM
= 27V, –13.5V to +13.5V
∆V
S
= 25V,
±15V
to
±2.5V
R
L
= 2k
65
65
±12.5
±25
±13.8
100
110
±14
2
6
1.3
2.0
mA
General Note :
Devices are ESD protected; however, handling precautions are recommended.
IN+ and IN– pins on the MIC6252 are interchangeable.
Gain setting resistors are ratio-matched but have a
±20%
absolute tolerance
Limit input current to 1mA.
Human body model, 1.5k in series with 100pF.
MIC6251/6252
2
July 1998
MIC6251/6252
Micrel
Typical Characteristics
Supply Current
vs. Temperature
1.4
SUPPLY CURRENT (mA)
SUPPLY CURRENT (mA)
1.5
Supply Current
vs. Supply Voltage
70
INPUT BIAS CURRENT (nA)
Input Bias Current
vs. Temperature
V
S
=
±15V
1.3
60
50
40
V =
±15V
S
1.0
T
A
= 25°C
0.5
1.2
1.1
30
20
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
1.0
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
0
0
5
10 15 20 25
SUPPLY VOLTAGE (V)
30
PEAK-TO-PEAK OUTPUT VOLTAGE (V)
MIC6251 Gain
vs. Frequency
10
5
0
GAIN (dB)
-5
-10
-15
-20
-25
0.01
0.1
1
10
FREQUENCY (MHz)
100
V =
±15V
G = +2
G = +1
S
30
25
20
15
10
Undistorted Output Swing vs.
Frequency
V
S
=
±15V
R
L
= 2k
G = +2
T
A
= 25°C
Common-Mode Rejection Ratio
vs. Frequency
110
100
CMRR (dB)
T
A
= 25°C
V
S
=
±15V
G = +2
T
A
= 25°C
90
80
70
60
5
0
10
100
1000 3000
FREQUENCY (kHz)
50
0.01
0.1
1
10
100
FREQUENCY (kHz)
1000
Power Supply Rejection Ratio
vs. Frequency
120
110
SHORT CIRCUIT CURRENT (mA)
130
V
S
=
±15V
T
A
= 25°C
65
60
55
50
45
Short Circuit Current
vs. Temperature
V
S
=
±15V
PSRR (dB)
100
90
80
70
60
50
0.001 0.01 0.1
1
10
FREQUENCY (kHz)
100
-PSRR
+PSRR
40
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
July 1998
3
MIC6251/6252
MIC6251/6252
MIC6251 Large-Signal Transient Response
MIC6251 Large-Signal Transient Response
Micrel
+10V
V
S
=
±15V
R
L
= 2k
C
L
= 10pF
G = +2
+10V
V
S
=
±15V
R
L
= 2k
C
L
= 10pF
G = +1
GND
GND
–10V
2µs/DIV
–10V
2µs/DIV
MIC6251 Large-Signal Transient Response
MIC6252 Large-Signal Transient Response
V
S
=
±15V
R
L
= 2k
C
L
= 10pF
G = –1
+10V
+5V
V
S
=
±15V
R
L
= 2k
C
L
= 10pF
G = 0.5
GND
GND
–10V
–5V
2µs/DIV
2µs/DIV
MIC6251 Small-Signal Transient Response
+100mV
V
S
=
±15V
R
L
= 2k
C
L
= 100pF
G = +2
GND
–100mV
500ns/DIV
MIC6251/6252
4
July 1998
开关电源学习小组
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
