Datasheet MIC6252BM5, MIC6251BM5 Datasheet (MICREL)

MIC6251/6252 Micrel

MIC6251/6252

IttyBitty™ GainBlock™ Amplifiers

Preliminary 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.

Functional Configuration

IN+

321

V– OUT

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 Marking Temperature Range Package

MIC6251BM5 A51 –40°C to +85°C SOT-23-5
MIC6252BM5 A52 –40°C to +85°C SOT-23-5

IN+ V– OUT

321

20k

20k

4 5

IN– V+

Pin Configuration

Part Number Identification

MIC6251BM5 A51
MIC6252BM5 A52

MIC6251

20k

20k

20k20k

20k

4 5

IN– V+

20k

MIC6252

V–

2

Axx

OUT

13

Part
Identification

V+IN–

IN+

45

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 [phone] • fax + 1 [phone] • http://www.micrel.com

July 1998 1 MIC6251/6252

MIC6251/6252 Micrel

Pin Description

Pin Number Pin Name Pin Function

1 OUT Amplifier Output
2 V– Negative Supply: Negative supply for split supply application or ground for

single supply application.
3 IN+ Noninverting Input: See “Electrical Characteristics: Note 1.”
4 IN– Inverting Input: See “Electrical Characteristics: Note 1.”
5 V+ Positive Supply

Absolute Maximum Ratings

Supply Voltage (VV+ – VV–)............................. 36V or ±18V

Differential Input Voltage (V
Input Voltage (V

IN+

, V

IN–

IN+

– V

) .......................±36V

IN–

)........................VV– – 0.3V to V

Operating Ratings

Supply Voltage .................................................... 4V to 32V

Ambient Temperature Range..................... –40°C to +85°C

SOT-23-5 Thermal Resistance (θJA).....................325°C/W

V+

Output Short Circuit Current Duration ...............................∞

Junction Temperature (TJ) ........................................ 150°C

Storage Temperature (TS) ....................... –65°C to +150°C

Lead Temperature (soldering, 10 sec.) ..................... 260°C

ESD, Note 4............................................................... [TBD]

Electrical Characteristics (Differential Supply)

VV+ = +15V, VV– = –15V; VCM = 0V, Note 1; TA = 25°C, bold values indicate –40°C ≤ TA ≤ +85°C, TA = TJ; unless noted.
Symbol Parameter Condition Min Typ Max Units

G

E

G

NL

V

OS

TCV

OS

I

B

V

CM

CMRR Common Mode Rejection Ratio ∆VCM = 27V, –13.5V to +13.5V 65 100 dB
PSRR Power Supply Rejection Ratio ∆VS = 25V, ±15V to ±2.5V 65 110 dB
V

OUT

B

W

S

R

I

S

General Note : Devices are ESD protected; however, handling precautions are recommended.
Note 1: IN+ and IN– pins on the MIC6252 are interchangeable.
Note 2: Gain setting resistors are ratio-matched but have a ±20% absolute tolerance
Note 3: Limit input current to 1mA.
Note 4: Human body model, 1.5k in series with 100pF.

Gain Error MIC6251: AV = 2, VO = ±10V 0.3 0.5 %

MIC6252: AV = 0.5, VO = ±10V 0.3 0.5 %

Gain Non-linearity MIC6251: AV = 2, VO = ±10V 0.01 %

MIC6252: AV = 0.5, VO = ±10V 0.01 %

Offset Voltage MIC6251: Referred to output 4 14 mV

MIC6252: Referred to output 2 7 mV
Average Offset Drift 7 µV/°C
Input Bias Current 50 250 nA
Input Voltage Range, Differential Note 3 ±25 V
Input Volt. Range, Common Mode ±13.5 ±13.8 V

Maximum Output Voltage Swing RL = 2k ±12.5 ±14 V
Bandwidth 2 MHz
Slew Rate 6V/µs
Supply Current 1.3 2.0 mA

MIC6251/6252 2 July 1998

MIC6251/6252 Micrel

20

30

40

50

60

70

-40 -20 0 20 40 60 80 100

INPUT BIAS CURRENT (nA)

TEMPERATURE (°C)

0

5

10

15

20

25

30

10 100 1000 3000

PEAK-TO-PEAK OUTPUT VOLTAGE (V)

FREQUENCY (kHz)

50

60

70

80

90

100

110

0.01 0.1 1 10 100 1000

CMRR (dB)

FREQUENCY (kHz)

Typical Characteristics

Supply Current

1.4

1.3

1.2

1.1

SUPPLY CURRENT (mA)

1.0

vs. Temperature

VS = ±15V

-40 -20 0 20 40 60 80 100

TEMPERATURE (°C)

MIC6251 Gain

10

-5

-10

GAIN (dB)

-15

-20

-25

vs. Frequency

5

G = +2

0

G = +1

0.01 0.1 1 10 100

FREQUENCY (MHz)

VS = ±15V

= 25°C

T

A

Supply Current

vs. Supply Voltage

1.5

1.0
TA = 25°C

0.5

SUPPLY CURRENT (mA)

0

0 5 10 15 20 25 30

SUPPLY VOLTAGE (V)

Undistorted Output Swing vs.

Frequency

VS = ±15V

= 2k

R

L

G = +2

= 25°C

T

A

Input Bias Current

vs. Temperature

VS = ±15V

Common-Mode Rejection Ratio

vs. Frequency

VS = ±15V
G = +2

= 25°C

T

A

Power Supply Rejection Ratio

130
120
110
100

PSRR (dB)

July 1998 3 MIC6251/6252

vs. Frequency

90

-PSRR

80
70
60
50

0.001 0.01 0.1 1 10 100

FREQUENCY (kHz)

VS = ±15V
T

= 25°C

A

+PSRR

Short Circuit Current

vs. Temperature

65

60

55

50

45

SHORT CIRCUIT CURRENT (mA)

40

-40 -20 0 20 40 60 80 100

TEMPERATURE (°C)

VS = ±15V

MIC6251/6252 Micrel

+10V

GND

–10V

+10V

MIC6251 Large-Signal Transient Response

VS = ±15V

= 2k

R

L

C

= 10pF

L

G = +2

2µs/DIV

MIC6251 Large-Signal Transient Response

VS = ±15V
R

= 2k

L

C

= 10pF

L

G = –1

+10V

GND

–10V

+5V

MIC6251 Large-Signal Transient Response

VS = ±15V
R

= 2k

L

= 10pF

C

L

G = +1

2µs/DIV

MIC6252 Large-Signal Transient Response

VS = ±15V

= 2k

R

L

C

= 10pF

L

G = 0.5

GND

–10V

+100mV

GND

–100mV

GND

–5V

2µs/DIV

MIC6251 Small-Signal Transient Response

VS = ±15V
R

= 2k

L

= 100pF

C

L

G = +2

2µs/DIV

500ns/DIV

MIC6251/6252 4 July 1998

MIC6251/6252 Micrel

NOISE VOLTAGE (4µV/DIV)

MIC6251/2 0.1Hz to 10Hz Noise

Gain = +1

VS = ±15V

1s/DIV

MIC6251/2 Wideband Noise

Gain +1

VS = ±15V

NOISE VOLTAGE (5µV/DIV)

5ms/DIV

July 1998 5 MIC6251/6252

MIC6251/6252 Micrel

Functional Configurations

Figures 1 through 6 illustrate basic MIC6251 and MIC6252 GainBlock™ configurations.

+4V to +32V

5

V+

20k20k

2

5

MIC6251

MIC6251

OUT

1

OUT

1

V

= 2V

OUT

V

OUT

= V

IN

IN

20k

IN+

V

IN

3

20k

IN–

4

V–

Figure 1. MIC6251 AV = 2 Amplifier

+4V to +32V

V+

20k

IN+

V

IN

3

20k

IN–

4

V–

20k20k

2

Figure 2. MIC6251 Voltage Follower

+2V to +16V

5

V+

20k

MIC6251

IN+

3

20k

V

IN–

IN

4

3

GND

V–

20k20k

2

OUT

1

–2V to –16V

Figure 3. MIC6251 Inverting Unity-Gain Circuit

V

= –V

OUT

IN

MIC6251/6252 6 July 1998

MIC6251/6252 Micrel

+4V to +32V

5

V+

MIC6252

IN+

V

IN

3

IN–

20k

20k

4

V–

20k

20k

2

OUT

1

V

OUT

V

IN

=

2

Figure 4. MIC6252 AV = 0.5 Amplifier

+4V to +32V

5

V+

2

MIC6252

20k

20k

OUT

1

V

= V

OUT

IN

V

IN+

IN

IN–

3

20k

20k

4

V–

Figure 5. MIC6252 Voltage Follower

+4V to +32V

5

V+

IN+

V

IN1

3

20k

IN–

V

IN2

20k

4

2

V–

Figure 6. MIC6252 Voltage Averager

MIC6252

20k

20k

OUT

1

V

OUT

VV

+

IN1 IN2

=

2

July 1998 7 MIC6251/6252

MIC6251/6252 Micrel

Package Information

1.90 (0.075) REF

0.95 (0.037) REF

3.02 (0.119)

2.80 (0.110)

0.50 (0.020)

0.35 (0.014)

1.75 (0.069)

1.50 (0.059)

1.30 (0.051)

0.90 (0.035)

0.15 (0.006)

0.00 (0.000)

SOT-23-5 (M5)

3.00 (0.118)

2.60 (0.102)

10°

0°

DIMENSIONS:

MM (INCH)

0.20 (0.008)

0.09 (0.004)

0.60 (0.024)

0.10 (0.004)

MICREL INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 USA

TEL + 1 [phone] FAX + 1 [phone] 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.

© 1998 Micrel Incorporated

MIC6251/6252 8 July 1998