Datasheet MIC6211BM5 Datasheet (MICREL)

MIC6211 Micrel

MIC6211

IttyBitty™ Operational Amplifier

Preliminary Information

General Description

The MIC6211 IttyBitty™ op amp is a general-purpose, high­performance, single- or split-supply, operational amplifier in
a space-saving, surface-mount package.

The MIC6211 operates from 4V to 32V, single or differential
(split) supply. The input common-mode range includes ground.
The device features a 2.5MHz unity gain bandwidth, 6V/µs
slew rate, and is internally unity-gain compensated.

Inputs are protected against reverse polarity (input voltage
less than V–) and ESD (electrostatic discharge). Output is
current limited for both sourcing and sinking. Output short
circuits of unlimited duration are allowed, provided the power
dissipation specification is not exceeded.

The MIC6211 is available in the tiny, 5-lead SOT-23-5 sur­face-mount package.

Features

• 4V to 32V operation

• Small footprint package

• Unity gain stable

• 2.5 MHz unity gain bandwidth

• 6V/µs typical slew rate

• Short circuit protected

Applications

• Analog blocks

• Active filtering

Ordering Information

Part Number Temperature Range Package

MIC6211BM5 –40°C to +85°C SOT-23-5

Pin Configuration

V–

2

A11

OUT

13

Part
Identification

V+IN–

IN+

45

Pin Description

Pin Number Pin Name Pin Function

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

3 IN+ Noninverting Input
4IN– Inverting Input
5 V+ Positive Supply

Functional Configuration

single supply application.

V–

OUT

13

2

V+IN–

IN+

45

SOT-23-5 (M5)

Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 [phone] • fax + 1 [phone] • http://www.micrel.com

June 1999 1 MIC6211

MIC6211 Micrel

Absolute Maximum Ratings

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

Differential Input Voltage (V
Input Voltage (V

IN+

, V

IN–

– V

IN+

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

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

) .......................±36V

IN–

Operating Ratings

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

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

SOT-23-5 Thermal Resistance (θJA).....................220°C/W

V+

(mounted to printed circuit board)

Electrical Characteristics (Differential Supply)

V+ = +15V, V– = –15V, VCM = 0V; RL = 2kΩ; TA = 25°C, bold values indicate –40°C ≤ TA ≤ +85°C, TA = TJ; unless noted
Symbol Parameter Condition Min Typ Max Units

V

OS

TCV

OS

I

B

I

OS

V

CM

CMRR Common Mode Rejection Ratio VCM = +13.5V, –15.0V 65 100 dB
PSRR Power Supply Rejection Ratio VS = ±2.5V to ±15V 65 110 dB
A

VOL

V

OUT

B

W

S

R

I

SC

I

S

Input Offset Voltage 27mV
Average Input Offset Drift Note 1 7 µV/°C
Input Bias Current 50 250 nA
Input Offset Current 830nA
Input Voltage Range +13.5 +13.8 V

–15.0 –15.3 V

Large Signal Voltage Gain VO = ±10V 25 180 V/mV
Maximum Output Voltage Swing ±12.5 ±14 V
Bandwidth 2.5 MHz
Slew Rate 6V/µs
Output Short Circuit Current Sourcing or sinking 30 50 mA
Supply Current 1.3 2.0 mA

Electrical Characteristics (Single Supply)

V+ = +5V, V– = 0V, VCM = 0.1V; TA = 25°C, bold values indicate –40°C ≤ TA ≤ +85°C, TA = TJ; unless noted
Symbol Parameter Condition Min Typ Max Units

V

OS

TCV

OS

I

B

I

OS

V

CM

CMRR Common Mode Rejection Ratio VCM = 0V to 3.5V 45 70 dB
PSRR Power Supply Rejection Ratio VS = ±2.5V to ±15V 65 105 dB
A

VOL

V

OUT

I

SC

I

S

General Note: Devices are ESD protected; however, handling precautions are recommended.
Note 1: Not production tested.

Input Offset Voltage 27mV
Average Input Offset Drift Note 1 7 µV/°C
Input Bias Current 65 250 nA
Input Offset Current 830nA
Input Voltage Range +3.5 +3.7 V

0 –0.3 V

Large Signal Voltage Gain VO = 1.5V to 3.5V, RL = 2k 15 170 V/mV
Maximum Output Voltage Swing RL = 10k to GND +3.8 +4.0 V

RL = 10k to +5V +1.0 +1.2 V
Output Short Circuit Current Sourcing or sinking 20 40 mA
Supply Current 1.2 1.8 mA

MIC6211 2 June 1999

MIC6211 Micrel

0

5

10

15

20

-40 -20 0 20 40 60 80 100

INPUT OFFSET CURRENT (nA)

TEMPERATURE (°C)

Input Offset Current

vs. Temperature

VS = ±15V

VS = 5V

-20

-10

0

10

20

30

270

225

180

135

90

45

0.1 1.0 10

VOLTAGE GAIN (dB)

PHASE (°)

FREQUENCY (MHz)

GAIN

PHASE

Gain and Phase

vs. Frequency

VS = ±15V

72°

GND

+50mV

–50mV

INPUT VOLTAGE OUTPUT VOLTAGE

Small-Signal Transient Response

–50mV

GND

+50mV

AV = +1
RL = 2k
CL = 100pF
VS = ±15V

500ns/DIV

Typical Characteristics

Supply Current

1.4

1.3

1.2

1.1

SUPPLY CURRENT (mA)

1.0

vs. Temperature

VS = ±15V

VS = 5V

-40 -20 0 20 40 60 80 100

TEMPERATURE (°C)

Supply Current

vs. Supply Voltage

1.5

1.0

0.5

SUPPLY CURRENT (mA)

0

0 5 10 15 20 25 30

SUPPLY VOLTAGE (V)

Input Bias Current

vs. Temperature

90

80

70

60

50

40

INPUT BIAS CURRENT (nA)

30

VS = 5V

VS = ±15V

-40 -20 0 20 40 60 80 100

TEMPERATURE (°C)

Voltage Gain

0

0.01

vs. Frequency

VS = ±15V

1

0.1

FREQUENCY (kHz)

10

100

120
100

80
60
40
20

VOLTAGE GAIN (dB)

-20

1,000

10,000

+10V

GND

–10V

+10V

GND

–10V

INPUT VOLTAGE OUTPUT VOLTAGE

June 1999 3 MIC6211

Large-Signal Transient Response

AV = +1
RL = 2k
CL = 10pF
VS = ±15V

2µs/DIV

MIC6211 Micrel

NOISE VOLTAGE (5µV/DIV)

Wideband Noise

VS = ±15V

5ms/DIV

Large-Signal

Frequency Response

30

25

20

15

10

5

0

10 100 1000 3000

PEAK-TO-PEAK OUTPUT VOLTAGE (V)

FREQUENCY (kHz)

VS = ±15V
R

= 2k

L

T

= 25°C

A

Common Mode Rejection Ratio

110

100

90

80

CMRR (dB)

70

60

50

vs. Frequency

VS = ±15V

0.01 0.1 1 10 100 1000

FREQUENCY (kHz)

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

Power Supply Rejection

Ratio vs. Frequency

130
120
110
100

90

-PSRR

80

PSRR (dB)

70
60
50

0.001 0.01 0.1 1 10 100

FREQUENCY (kHz)

VS = ±15V

+PSRR

NOISE VOLTAGE (4µV/DIV)

0.1Hz to 10Hz Noise

VS = ±15V

1s/DIV

MIC6211 4 June 1999

MIC6211 Micrel

Functional Diagram

V+

5

20Ω

V

20Ω

OUT

1

2

V–
(GND)

–IN

+IN

4

3

MIC6211

C

C

June 1999 5 MIC6211

MIC6211 Micrel

-20

-10

0

10

20

30

1

10

100

1,000

10,000

100,000

V

OUT

(dB)

FREQUENCY (Hz)

1101k

100k

Applications Information

Common-Mode Range and Output Voltage

The input common-mode range of the MIC6211 is from the

negative supply voltage
voltage

. The output voltage swings within 1V of the positive

and negative supply voltage.

Voltage Buffer

Figure 1 shows a standard voltage follower/buffer. The output
voltage equals the input voltage. This circuit is used to buffer
a high impedance signal source. This circuit works equally
well with single or split supplies.

V

IN

Figure 1. Voltage Buffer

Inverting Amplifier

Figure 2 shows an inverting amplifier with its gain set by the
ratio of two resistors. This circuit works best with split sup­plies, but will perform with single supply systems if the non­inverting input (+ input) is biased up above ground.

V

IN

Figure 2. Inverting Amplifer

Voltage Controlled Current Sink

Figure 3 is a voltage controlled current sink. A buffer transis­tor forces current through a programming resistor until the
feedback loop is satisfied. Current flow is VIN/R. This circuit
works with single or split supplies.

to

1.2V below the positive supply

3

1

4

V

= V

OUT

IN

R1

R2

4

3

V

OUT

V

IN

3

4

V

OUT

1

1

V

OUT

R1

V

IN

R2

High-Pass Filter

Figure 4 is an active filter with 20dB (10×) gain and a low­frequency cutoff of 10Hz. The high gain-bandwidth of the
MIC6211 allows operation beyond 100kHz. This filter con­figuration is designed for split supplies.

0.1µF

332k

1µF 1µF

IN

7.5k

4

1

3

V

OUT

Figure 4a. High-Pass Filter

Figure 4b. High-Pass Filter Response

Summing Amplifier

Figure 5 is a single supply summing amplifier. In this configu­ration, the output voltage is the sum of V1 and V2, minus the
sum of V3 and V4. By adding more resistors to either the
inverting or non-inverting input, more voltages may be
summed. This single supply version has one important re­striction: the sum of V1 and V2 must exceed the sum of V3
and V4, since the output voltage cannot pull below zero with
only a single supply.

R

V1

R

V2

R

V3

R

V4
All resistors are equal.

V

= V1 + V2 – V3 – V4

OUT

V1 + V2 > V3 + V4 for single supply operation

3

R

4

1

R

V

OUT

Figure 5. Summing Amplifier

V

IN

I

R

R

Figure 3. Voltage Controlled Current Sink

MIC6211 6 June 1999

MIC6211 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)

June 1999 7 MIC6211

MIC6211 Micrel

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.

© 1999 Micrel Incorporated

MIC6211 8 June 1999