MICREL MIC6252BM5, MIC6251BM5 Datasheet

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