MAXIM MAX4165, MAX4169 User Manual

1

19-1224; Rev 3; 1/07

High-Output-Drive, Precision, Low-Power, Single-

Supply, Rail-to-Rail I/O Op Amps with Shutdown

General Description

The MAX4165–MAX4169 family of operational amplifiers combines excellent DC accuracy with high output current drive, single-supply operation, and rail-to-rail inputs and outputs. These devices operate from a single +2.7V to +6.5V supply, or from dual ±1.35V to ±3.25V supplies. They typically draw 1.2mA supply current, and are guaranteed to deliver 80mA output current.

The MAX4166/MAX4168 have a shutdown mode that reduces supply current to 38µA per amplifier and places the outputs into a high-impedance state. The MAX4165–MAX4169’s precision performance combined with high output current, wide input/output dynamic range, single-supply operation, and low power consumption makes them ideal for portable audio applications and other low-voltage, battery-powered systems. The MAX4165 is available in the space-saving 5-pin SOT23 package and the MAX4166 is available in a tiny 2mm x 2mm x 0.8mm µDFN package.

Selector Guide

PART

MAX4165 Single —

MAX4166 Single Yes

MAX4167 Dual —

MAX4168 Dual Yes

MAX4169 Quad —

AMPS PER

PACKAGE

SHUTDOWN

MODE

Applications

Portable/Battery-Powered Audio Applications Portable Headphone Speaker Drivers Laptop/Notebook Computers Sound Ports/Cards Set-Top Boxes Cell Phones Hands-Free Car Phones (kits) Signal Conditioning Digital-to-Analog Converter Buffers Transformer/Line Drivers Motor Drivers

Features

♦ 80mA (min) Output Drive Capability ♦ Rail-to-Rail Input Common-Mode Voltage Range ♦ Rail-to-Rail Output Voltage Swing ♦ 1.2mA Supply Current per Amplifier ♦ +2.7V to +6.5V Single-Supply Operation ♦ 5MHz Gain-Bandwidth Product ♦ 250µV Offset Voltage ♦ 120dB Voltage Gain (R ♦ 88dB Power-Supply Rejection Ratio ♦ No Phase Reversal for Overdriven Inputs ♦ Unity-Gain Stable for Capacitive Loads to 250pF ♦ Low-Power Shutdown Mode:

Reduces Supply Current to 38µA Places Outputs in High-Impedance State

♦ Available in 5-Pin SOT23 Package (MAX4165) or

2mm x 2mm x 0.8mm µDFN (MAX4166)

= 100kΩΩ)

L

Ordering Information

PART TEMP RANGE

MAX4165EUK-T -40°C to +85°C 5 SOT23-5 AABY

MAX4166EPA -40°C to +85°C 8 Plastic DIP —

MAX4166ESA -40°C to +85°C 8 SO —

MAX4166EUA -40°C to +85°C 8 µMAX —

MAX4166ELA+T -40°C to +85°C 8 µDFN-8 AAG

+

Denotes lead-free package.

Ordering Information continued on last page.

PINPACKAGE

TOP

MARK

Pin Configurations

TOP VIEW

OUT

V

IN+

1

MAX4165

2

EE

3

5

V

CC

IN-

4

MAX4165–MAX4169

Typical Operating Circuit appears at end of data sheet.

SOT23-5

Pin Configurations continued at end of data sheet.

________________________________________________________________

Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

1

High-Output-Drive, Precision, Low-Power, SingleSupply, Rail-to-Rail I/O Op Amps with Shutdown

ABSOLUTE MAXIMUM RATINGS

Supply Voltage (VCCto VEE)....................................................7V

IN_+, IN_-, SHDN_............................(V

OUT_ (shutdown mode) ...................(V

Output Short-Circuit Duration to V Continuous Power Dissipation (T

5-Pin SOT23 (derate 7.10mW/°C above +70°C)..........571mW

8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ...727mW

8-Pin SO (derate 5.88mW/°C above +70°C)................471mW

8-Pin µMAX (derate 4.10mW/°C above +70°C) ...........330mW

Note 1: Continuous power dissipation should also be observed.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

CC

A

- 0.3V) + (VCC+ 0.3V)

EE

- 0.3V) + (VCC+ 0.3V)

EE

or VEE(Note 1) .....Continuous

= +70°C)

DC ELECTRICAL CHARACTERISTICS

(VCC= +2.7V to +6.5V, VEE= 0V, VCM= 0V, V

MAX4165–MAX4169

noted.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Input Offset Voltage V

Input Bias Current I

Input Offset Current I

Differential Input Resistance R

Common-Mode Input Voltage Range

Common-Mode Rejection Ratio

OS

B

OS

IN(DIFF)

V

CM

CMRR

Power-Supply Rejection Ratio PSRR V

Output Resistance R

Off-Leakage Current in Shutdown

Large-Signal Voltage Gain A

OUT

I

OUT(SHDN) VSHDN

VOL

= (VCC/ 2), RL= 100kΩ to (VCC/ 2), V

OUT

V

= V

to V

EE

CC

= V

to V

EE

CC

= V

to V

EE

CC

+ - VIN- | 1.8V

≤

+ - VIN- | > 1.8V

V

| V | V

CM

IN

Inferred from CMRR test V

- 0.25V <

V

EE

< (V

V

A

CM

CC

VCL

+ 0.25V)

CC

= 2.7V to 6.5V

= +1V/V 0.1

< 0.8V, V

V

= 5V

CC

V

OUT

8-Pin µDFN (derate 4.8mW/°C above +70°C) .............380mW

10-Pin µMAX (derate 5.60mW/°C above +70°C) ..........444mW

14-Pin Plastic DIP (derate 10.00mW/°C above +70°C) 800mW

14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

≥ 2V, TA= +25°C, unless otherwise

SHDN

MAX416_EPA/EPD

MAX416_ESA/ESD

MAX416_EUA/EUB/ELA

MAX416_EUK

MAX4169E_D

0.25 0.85

0.35 1.7

0.35 1.5

0.25 1.0

±50 ±150 nA

±1 ±15 nA

500

2

- 0.25 V

EE

MAX416_EPA/EPD

MAX416_ESA/ESD

MAX416_EUA/EUB/ELA

MAX416_EUK

MAX4169E_D

MAX416_EPA/EP

D 72 88

MAX416_ESA/ESD

MAX416_EUA/EUB/ELA

MAX416_EUK

MAX4169E_D

= 0V to V

OUT

CC

= 0.2V to 4.8V, RL = 100k 95 120

= 0.6V to 4.4V, RL = 25 71 83

Ω

72 93

62 89

63 90

71 93

72 88

72 86

70 88

Ω

±0.001 ±2 μA

+ 0.25 V

CC

mV

kΩ

dB

kΩ

dB

2 _______________________________________________________________________________________

High-Output-Drive, Precision, Low-Power, Single-

Supply, Rail-to-Rail I/O Op Amps with Shutdown

DC ELECTRICAL CHARACTERISTICS (continued)

(V

CC

= +2.7V to +6.5V, V

EE

= 0V, V

CM

= 0V, V

OUT

= (V

CC

/ 2), R

L

= 100kΩ to (V

CC

/ 2), V

SHDN

≥ 2V, T

A

= +25°C, unless otherwise

noted.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

R

L

= 100kΩ

V

CC

- V

OH

15 30

mVOutput Voltage Swing V

OUT

V

CC

= 5V

V

OL

- V

EE

10 25

R

L

= 25Ω

V

CC

- V

OH

340 430

V

OL

- V

EE

160 350

Output Source/Sink Current (Note 2)

V

OUT

= 0.6V to (V

CC

- 0.6V) ±80 ±125 mA

SHDN Logic Threshold

V

IL

Shutdown mode 0.8

V

(Note 3)

V

IH

Normal mode 2.0

SHDN Input Bias Current

V

EE

< V

SHDN

< V

CC

±3.0 µA

Operating Supply-Voltage Range

V

CC

Inferred from PSRR test 2.7 6.5 V

Quiescent Supply Current

I

CC

V

CC

= 5V 1.3 1.5

mA

(per Amplifier)

V

CC

= 3V 1.2 1.4

Shutdown Supply Current

V

SHDN

< 0.8V

V

CC

= 5V 58 75

µA

(per Amplifier)

I

CC(SHDN)

V

CC

= 3V 38 49

DC ELECTRICAL CHARACTERISTICS

(V

CC

= +2.7V to +6.5V, V

EE

= 0V, V

CM

= 0V, V

OUT

= (V

CC

/ 2), R

L

= 100kΩ to (V

CC

/ 2), V

SHDN

≥ 2V, T

A

= -40°C to +85°C, unless

otherwise noted.) (Note 4)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

MAX416_EPA/EPD 1.0

mV

MAX416_ESA/ESD 1.0

Input Offset Voltage V

OS

V

CM

= V

EE

to V

CC

4.9

MAX416_EUK 4.3

MAX4169E_D 1.2

Offset-Voltage Tempco ΔVOS/ΔT ±3 µV/°C

Input Bias Current I

B

V

CM

= V

EE

to V

CC

±225 nA

Input Offset Current I

OS

V

CM

= V

EE

to V

CC

±21 nA

Common-Mode Input Voltage Range

V

CM

Inferred from CMRR test V

EE

- 0.15 V

CC

+ 0.15 V

MAX416_EPA/EPD

71

dB

Common-Mode Rejection Ratio

CMRR

V

EE

- 0.15V < V

CM

<

(V

CC

+ 0.15V)

MAX416_ESA/ESD

71

56

MAX416_EUK

57

MAX4169E_D

69

MAX416_EPA/EPD

67

dB

MAX416_ESA/ESD

67

Power-Supply Rejection Ratio PSRR V

CC

= 2.7V to 6.5V

65

MAX416_EUK

65

MAX4169E_D

66

MAX4165–MAX4169

_______________________________________________________________________________________ 3

MAX416_EUA/EUB /ELA

MAX416_EUA/EUB /EL

A

High-Output-Drive, Precision, Low-Power, SingleSupply, Rail-to-Rail I/O Op Amps with Shutdown

DC ELECTRICAL CHARACTERISTICS (continued)

(VCC= +2.7V to +6.5V, VEE= 0V, VCM= 0V, V otherwise noted.)

Off-Leakage Current in Shutdown

Large-Signal Voltage Gain

Output Voltage Swing VCC= 5V

I

OUT(SHDN)

A

VOL

V

OUT

Output Source/Sink Current (Note 2)

V

SHDN Logic Threshold (Note 3)

SHDN Input Bias Current

MAX4165–MAX4169

Operating Supply-Voltage Range

Quiescent Supply Current (per Amplifier)

Shutdown Supply Current (per Amplifier)

IL

V

IH

CC

I

CC

I

CC(SHDN)

Note 2: Although the minimum output current is guaranteed to be ±80mA, exercise caution to ensure that the absolute maximum

power-dissipation rating of the package is not exceeded.

Note 3: SHDN logic thresholds are referenced to V Note 4: The MAX4165EUK is 100% tested at +25°C. All temperature limits are guaranteed by design.

= (VCC/ 2), R

OUT

= 100kΩ to (V

L

CC

/ 2), V

CONDITIONS

V

< 0.8V, V

SHDN

VCC= 5V

V

= 0.6V to (VCC- 0.6V) mA±80

OUT

= 0V to V

OUT

V

= 0.2V to 4.8V, R

OUT

V

= 0.6V to 4.4V, R

OUT

R

= 100kΩ

L

R

= 25Ω

L

CC

L

VCC- V VOL- V VCC- V VOL- V

Shutdown mode Normal mode

VEE< V

SHDN

< V

CC

Inferred from PSRR test

VCC= 5V VCC= 3V

V

SHDN

EE

< 0.8V

.

VCC= 5V VCC= 3V

SHDN

= 100kΩ = 25Ω

OH

EE

OH

EE

≥ 2V, T

90 66

2.0

= -40°C to +85°C, unless

A

40

30 490 400

0.8

1.7

1.6 82 54

UNITSMIN TYP MAXSYMBOLPARAMETER

µA±5

dB

mV

V

µA±3.5

V2.7 6.5V

mA

µA

AC ELECTRICAL CHARACTERISTICS

(VCC= +2.7V to +6.5V, VEE= 0V, VCM= 0V, V otherwise noted.)

FPBWFull-Power Bandwidth

Slew Rate SR V/µs

PMPhase Margin 68

Gain Margin GM dB

THDTotal Harmonic Distortion

Settling Time to 0.01% t

Input Capacitance 3

Input Voltage-Noise Density 26 Input Current-Noise Density 0.4

S

IN

e

n

i

n

Channel-to-Channel Isolation

Capacitive Load Stability

Shutdown Time

Enable Time from Shutdown

Power-Up Time t

t

SHDN

t

ENABLE

ON

4 _______________________________________________________________________________________

= (VCC/ 2), R

OUT

= 2.5kΩ to (V

L

CC

/ 2), V

SHDN

≥ 2V, C

= 15pF, TA= +25°C, unless

L

CONDITIONS

V

= 4Vp-p, VCC= 5V

OUT

260

2

21

f = 10kHz, V

A

= +1V/V, 2V step µs

VCL

OUT

= 2Vp-p, A

= +1V/V %

VCL

0.005

2.1

f = 1kHz

f = 1kHz, R

A

VCL

= 100kΩ (MAX4167–MAX4169)

L

125

= +1V/V, no sustained oscillations pF250

UNITSMIN TYP MAXSYMBOLPARAMETER

degrees

nV/√Hz

pA/√Hz

MHz5GBWPGain-Bandwidth Product

kHz

pFC

dB

µs1

µs5

MAX4165–MAX4169

High-Output-Drive, Precision, Low-Power, Single-

Supply, Rail-to-Rail I/O Op Amps with Shutdown

_______________________________________________________________________________________

5

70

-30 100 1k 10k 100k 1M 10M

GAIN AND PHASE vs. FREQUENCY

10

0

-10

-20

MAX4165-01

FREQUENCY (Hz)

GAIN (dB)

30 20

50 40

60

216

-144

0

-36

-72

-108

72 36

144 108

180

PHASE (DEGREES)

A

VCL

= +1000V/V

70

-30 100 1k 10k 100k 1M 10M

GAIN AND PHASE vs. FREQUENCY

(C

L

= 250pF)

-20

MAX4165-02

FREQUENCY (Hz)

GAIN (dB)

10

0

-10

50 40 30 20

60

216

-144

-108

0

-36

-72

144 108 72 36

180

PHASE (DEGREES)

A

VCL

= +1000V/V

C

L

= 250pF

10

-90 100 1k 10k 100k 1M 10M 100M

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

-70

-80

MAX4165-03A

FREQUENCY (Hz)

PSRR (dB)

-50

-60

-30

-40

-10

-20

0

A

VCL

= +1

1000

0.1 1 10 100 1k 10k

100k

1M 10M

OUTPUT IMPEDANCE vs. FREQUENCY

1

MAX4165-03B

FREQUENCY (Hz)

OUTPUT IMPEDANCE (Ω)

10

100

80

-60 0 7

INPUT BIAS CURRENT

vs. COMMON-MODE VOLTAGE

-40

60

MAX4165-06

COMMON-MODE VOLTAGE (V)

INPUT BIAS CURRENT (nA)

1 2 3 4 5 6

40

20

0

-20

VCC = +6.5V

VCC = +2.7V

1.6

0

-40 100

SUPPLY CURRENT PER AMPLIFIER

vs. TEMPERATURE

0.2

1.4

MAX4165-04

TEMPERATURE (°C)

SUPPLY CURRENT (mA)

-20 0 20 40 60 80

1.2

1.0

0.8

0.6

0.4

VCC = +6.5V

VCC = +2.7V

80

0

-40 100

SHUTDOWN SUPPLY CURRENT

PER AMPLIFIER vs. TEMPERATURE

20 10

70 60

MAX4165-05

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

-20 0 20 40 60 80

50 40 30

VCC = +6.5V

VCC = +2.7V

80

-60

-40 100

INPUT BIAS CURRENT

vs. TEMPERATURE

-40

60

MAX4165-07

TEMPERATURE (°C)

INPUT BIAS CURRENT (nA)

-20 0 20 40 60 80

40

20

0

-20

VCC = +6.5V, VCM = V

CC

VCC = +2.7V, VCM = V

CC

VCC = +2.7V, VCM = V

EE

VCC = +6.5V, VCM = V

EE

2.25

-2.25

-40 80

INPUT OFFSET VOLTAGE

vs. TEMPERATURE

-1.75

1.75

1.25

MAX4165-08

TEMPERATURE (°C)

VOLTAGE (mV)

-20

0 20 40 60

0.75

0.25

-0.75

-0.25

-1.25

SOT23-5 PACKAGE

SO PACKAGE

__________________________________________Typical Operating Characteristics

(VCC= +5.0V, VEE= 0V, R

L

= 100kΩ, T

A

= +25°C, unless otherwise noted.)

MAX4165–MAX4169

High-Output-Drive, Precision, Low-Power, SingleSupply, Rail-to-Rail I/O Op Amps with Shutdown

6 _______________________________________________________________________________________

____________________________Typical Operating Characteristics (continued)

(VCC= +5.0V, VEE= 0V, R

L

= 100kΩ, T

A

= +25°C, unless otherwise noted.)

2.00

1.75

-40 100

MINIMUM OPERATING VOLTAGE

vs. TEMPERATURE

1.80

1.95

MAX4165-09

TEMPERATURE (°C)

MINIMUM OPERATING VOLTAGE (V)

-20 0 20 40 60 80

1.90

1.85

88.0

84.0

84.5

-40 100

COMMON-MODE REJECTION RATIO

vs. TEMPERATURE

85.5

85.0

87.5

87.0

MAX4165-10

TEMPERATURE (°C)

CMRR (dB)

-20 0 20 40 60 80

86.5

86.0

140

0

20

0 0.6

LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE

(SINKING, V

CC

= 6.5V)

60

40

120

MAX4165-11

OUTPUT VOLTAGE (V)

LARGE-SIGNAL GAIN (dB)

0.1

0.2

0.3

0.4 0.5

100

80

RL = 100kΩ

RL = 1kΩ

RL = 100Ω

VCC = +6.5V R

L

to V

CC

125

90

95

0 0.6

LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE

(SOURCING, V

CC

= 6.5V)

105

100

120

MAX4165-12

OUTPUT VOLTAGE (V)

LARGE-SIGNAL GAIN (dB)

0.1 0.2 0.3 0.4 0.5

115

110

RL = 100kΩ

RL = 1kΩ

RL = 100Ω

VCC = +6.5V R

L

to V

EE

125

107

109

-40 100

LARGE-SIGNAL GAIN vs. TEMPERATURE

(R

L

= 100kΩ)

111

123

MAX4165-15a

TEMPERATURE (°C)

LARGE-SIGNAL GAIN (dB)

-20

0 20 40 60 80

121 119 117 115 113

VCC = +6.5V R

L

to V

CC

or V

EE

VCC = +2.7V R

L

to V

CC

or V

EE

V

OUTp-p

= VCC - 1V

R

L

= 100kΩ

110

60

65

-40 100

LARGE-SIGNAL GAIN vs. TEMPERATURE

(R

L

= 100Ω)

75 70

105

MAX4165-15

TEMPERATURE (°C)

LARGE-SIGNAL GAIN (dB)

-20

0 20 40 60 80

100

95 90 85 80

VCC = +2.7V R

L

to V

EE

VCC = +2.7V R

L

to V

CC

VCC = +6.5V R

L

to V

CC

V

OUTp-p

= VCC - 1V

R

L

= 100Ω

VCC = +6.5V R

L

to V

EE

120

0

20

0 0.40

LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE

(SINKING, V

CC

= 2.7V)

40

100

MAX4165-13

OUTPUT VOLTAGE (V)

LARGE-SIGNAL GAIN (dB)

0.05 0.10 0.15 0.20 0.25 0.30 0.35

80

60

RL = 100kΩ

RL = 100Ω

RL = 1kΩ

VCC = +2.7V R

L

to V

CC

120

0

0 0.40

LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE

(SOURCING, V

CC

= 2.7V)

40

20

100

MAX4165-14

OUTPUT VOLTAGE (V)

LARGE-SIGNAL GAIN (dB)

0.05

0.15

0.10 0.20

0.25

0.30 0.36

80

60

VCC = +2.7V R

L

to V

EE

RL = 100kΩ

RL = 100Ω

RL = 1kΩ

120

0

20

-40 100

OUTPUT VOLTAGE LOW

vs. TEMPERATURE

40

100

MAX4165-16

TEMPERATURE (°C)

V

OUT

- V

EE

(mV)

-20

0 20 40 60 80

80

60

VCC = +6.5V, RL = 100Ω

RL to V

CC

VCC = +2.7V, RL = 100Ω

VCC = +6.5V, RL = 100kΩ

VCC = +2.7V, RL = 100kΩ

MAX4165–MAX4169

High-Output-Drive, Precision, Low-Power, Single-

Supply, Rail-to-Rail I/O Op Amps with Shutdown

_______________________________________________________________________________________ 7

0.05

0

10 1k100 10k 100k

TOTAL HARMONIC DISTORTION

AND NOISE vs. FREQUENCY

0.01

MAX4165-18

FREQUENCY (Hz)

THD + NOISE (%)

0.02

0.03

0.04

V

OUT

= 2Vp-p 500kHz LOWPASS FILTER R

L

= 10kΩ TO VCC / 2

1

0.001

4.0

4.6

4.8 5.0

TOTAL HARMONIC DISTORTION AND NOISE

vs. PEAK-TO-PEAK OUTPUT VOLTAGE

0.01

0.1

MAX4165-19

PEAK-TO-PEAK OUTPUT (V)

THD + NOISE (%)

4.2 4.4

RL = 250Ω

RL = 2kΩ

RL = 100kΩ

RL = 25Ω

f = 10kHz R

L

to VCC / 2

IN

(50mV/div)

OUT

(50mV/div)

SMALL-SIGNAL TRANSIENT RESPONSE

(NONINVERTING)

MAX4165-20

TIME (500ns/div)

A

VCL

= +1V/V

130

80

1k 100k 1M10k 10M

CHANNEL-TO-CHANNEL ISOLATION

vs. FREQUENCY

90 85

MAX4165-19a

FREQUENCY (Hz)

CHANNEL-TO-CHANNEL ISOLATION (dB)

100

95

110

105

120

125

115

IN

(50mV/div)

OUT

(50mV/div)

SMALL-SIGNAL TRANSIENT RESPONSE

(INVERTING)

MAX4165-21

TIME (500ns/div)

A

VCL

= -1V/V

IN

(2V/div)

OUT

(2V/div)

LARGE-SIGNAL TRANSIENT RESPONSE

(NONINVERTING)

MAX4165-22

TIME (5µs/div)

A

VCL

= +1V/V

IN

(2V/div)

OUT

(2V/div)

LARGE-SIGNAL TRANSIENT RESPONSE

(INVERTING)

MAX4165-23

TIME (5µs/div)

A

VCL

= -1V/V

300

0

50

-40 100

OUTPUT VOLTAGE HIGH

vs. TEMPERATURE

250

MAX4165-17

TEMPERATURE (°C)

OUTPUT VOLTAGE HIGH

(mV)

-20 0 20 40 60 80

200

150

100

VCC = +6.5V, RL = 100Ω

VCC = +2.7V, RL = 100Ω

VCC = +6.5V OR + 2.7V, RL = 100kΩ

RL to V

EE

____________________________Typical Operating Characteristics (continued)

(VCC= +5.0V, VEE= 0V, R

L

= 100kΩ, T

A

= +25°C, unless otherwise noted.)

MAX4165-MAX4169

High-Output-Drive, Precision, Low-Power, SingleSupply, Rail-to-Rail I/O Op Amps with Shutdown

8 _______________________________________________________________________________________

Pin Description

MAX4166 MAX4168

MAX4165

1 6 4 — — — — OUT Output

— 1, 5 2, 6 —

— — — 1, 7 1, 13 1, 9 1, 7 OUT1, OUT2 Outputs for Amplifiers 1 and 2

2 4 3 4 4 4 11 V

3 3 1 — — — — IN+ Noninverting Input

— — — 2, 6 2, 12 2, 8 2, 6 IN1-, IN2- Inverting Inputs for Amplifiers 1 and 2

4 2 7 — — — — IN- Inverting Input

— — — 3, 5 3, 11 3, 7 3, 5 IN1+, IN2+ Noninverting Inputs for Amplifiers 1 and 2

5 7 5 8 14 10 4 VCC Positive Supply

— — — — 6, 9 5, 6 —

— 8 8 — — — — SHDN

— — — — — — 8, 14 OUT3, OUT4 Outputs for Amplifiers 3 and 4

— — — — — — 9, 13 IN3-, IN4- Inverting Inputs for Amplifiers 3 and 4

— — — — — — 10, 12 IN3+, IN4+ Noninverting Inputs for Amplifiers 3 and 4

DIP/SO

(MAX

(DFN

MAX4167

DIP/SO (MAX

5, 7, 8,

10

MAX4169

— — N.C. No Connection. Not internally connected.

NAME FUNCTION

EE

SHDN1,

SHDN2

Negative Supply. Ground for singlesupply operation.

Active-Low Shutdown Inputs for Amplifiers 1 and 2. Drive low for shutdown mode. Drive high or connect to V

for normal operation.

CC

Active-Low Shutdown Input. Drive low for shutdown mode. Drive high or connect to

for normal operation.

V

CC

MAX4165–MAX4169

High-Output-Drive, Precision, Low-Power, Single-

Supply, Rail-to-Rail I/O Op Amps with Shutdown

_______________________________________________________________________________________ 9

Applications Information

Package Power Dissipation

Warning: Due to the high output current drive, this op amp can exceed the absolute maximum power-dissipation rating. As a general rule, as long as the peak cur-

rent is less than or equal to 80mA, the maximum package power dissipation will not be exceeded for any of the package types offered. There are some exceptions to this rule, however. The absolute maximum power-dissipation rating of each package should always be verified using the following equations. The following equation gives an approximation of the package power dissipation:

where: V

RMS

= the RMS voltage from VCCto V

OUT

when sourcing current

= the RMS voltage from V

OUT

to V

EE

when sinking current

I

RMS

= the RMS current flowing out of or into

the op amp and the load

θ = the phase difference between the

voltage and the current. For resistive

loads, COS θ = 1.

For example, the circuit in Figure 1 has a package power dissipation of 157mW.

Therefore, P

IC(DISS)

= V

RMSIRMS

COS θ

= 157mW

Adding a coupling capacitor improves the package power dissipation because there is no DC current to the load, as shown in Figure 2.

Therefore, P

IC(DISS)

= V

RMSIRMS

COS θ

= 38.6mW

The absolute maximum power-dissipation rating of this package would be exceeded if the configuration in Figure 1 were used with all four of the MAX4169ESD’s amplifiers at a high ambient temperature of +75°C (157mW x 4 amplifiers = 628mW + a derating of

8.33mW/°C x 5°C = 669mW). Note that 669mW just exceeds the absolute maximum power dissipation of 667mW for the 14-pin SO package (see the

Absolute

Maximum Ratings

section).

V V V

I +

I

2

RMS CC DC

RMS

PEAK

≅ −

( )

−

= − − =

≅ = + =

. .

.

. /

.

V

V V

V

I A

V

mA

PEAK

RMS

DC

2

6 5 3 25

1 5

2

2 189

0

1 5 60

2

17 67

Ω

V V V

I +

I

2

RMS CC DC

RMS

PEAK

≅ −

( )

−

= − − =

≅ = +

=

. .

.

. /

.

V

V V

V

I

V V

mA

PEAK

RMS

DC

RMS

2

6 5 3 25

1 5

2

2 189

3 25

60

1 5 60

2

71 84

Ω

P V I COS

IC DISS RMS RMS

( )

≅ θ

6.5V

V

IN

= 3Vp-p

R

C

60Ω

R

MAX4165 MAX4166

Figure 1. A Circuit Example where the MAX4165/MAX4166 is Being Used in Single-Supply Operation

6.5V

V

IN

= 3Vp-p

R

60Ω

R

C

CC = 1 2π R

L fL

MAX4165 MAX4166

Figure 2. A Circuit Example where Adding a Coupling Capacitor Greatly Reduces the Power Dissipation of Its Package

High-Output-Drive, Precision, Low-Power, SingleSupply, Rail-to-Rail I/O Op Amps with Shutdown

INPUT

0.25Vp-p

0.1µF 100k

4.7k

V

= +3V

CC

4.7k 100k

1µF

100k

V

CC

1/2 MAX4167 1/2 MAX4168

= +3V

V

CC

1/2 MAX4167 1/2 MAX4168

900k

47Ω

0.1µF

= +3V

MAX4165–MAX4169

Figure 3. Dual MAX4167/MAX4168 Bridge Amplifier for 200mW at 3V

Single-Supply Speaker Driver

The MAX4165/MAX4166 can be used as a single-supply speaker driver, as shown in the

Circuit

. Capacitor C1 is used for blocking DC (a 0.1µF ceramic capacitor can be used). When choosing resistors R3 and R4, take into consideration the input bias current as well as how much supply current can be tolerated. Choose resistors R1 and R2 according to the amount of gain and current desired. Capacitor C3 ensures unity gain for DC. A 10µF electrolytic capacitor is suitable for most applications. The coupling capacitor C2 sets a low-frequency pole and is fairly large in

value. For a 32Ω load, a 100µF coupling capacitor

gives a low-frequency pole at 50Hz. The low-frequency pole can be set according to the following equation:

ƒ = 1 / 2π (R

The circuit shown in Figure 3 uses a dual MAX4167/ MAX4168 to implement a 3V, 200mW amplifier suitable for use in size-constrained applications. This configuration eliminates the need for the large coupling capacitor required by the single op-amp speaker driver when single-supply operation is a must. Voltage gain is set to +10V/V; however, it can be changed by adjusting the

900kΩ resistor value. DC voltage at the speaker is limited to 10mV. The 47Ω and 0.1µF capacitors across the

speaker maintain a low impedance at the load as frequency increases.

Typical Operating

C2)

L

Bridge Amplifier

MAX4165 MAX4166 MAX4167 MAX4168 MAX4169

R3

R3 = R1 R2

32Ω

R1 R2

Figure 4. Reducing Offset Error Due to Bias Current (Noninverting)

MAX4165 MAX4166 MAX4167 MAX4168 MAX4169

R3

R3 = R1 R2

R1 R2

Figure 5. Reducing Offset Error Due to Bias Current (Inverting)

Rail-to-Rail Input Stage

Devices in the MAX4165–MAX4169 family of high-output-current amplifiers have rail-to-rail input and output stages designed for low-voltage, single-supply operation. The input stage consists of separate NPN and PNP differential stages that combine to provide an input common-mode range that extends 0.25V beyond the supply rails. The PNP stage is active for input voltages close to the negative rail, and the NPN stage is active for input voltages near the positive rail. The switchover transition region, which occurs near VCC/ 2, has been extended to minimize the slight degradation in common-mode rejection ratio caused by mismatch of the input pairs.

10 ______________________________________________________________________________________

High-Output-Drive, Precision, Low-Power, Single-

Supply, Rail-to-Rail I/O Op Amps with Shutdown

1kΩ

Figure 6. Input Protection Circuit

Since the input stage switches between the NPN and PNP pairs, the input bias current changes polarity as the input voltage passes through the transition region. Match the effective impedance seen by each input to reduce the offset error caused by input bias currents flowing through external source impedances (Figures 4 and 5).

High source impedances, together with input capacitance, can create a parasitic pole that produces an underdamped signal response. Reducing the input impedance or placing a small (2pF to 10pF) capacitor across the feedback resistor improves response.

The MAX4165–MAX4169’s inputs are protected from large

differential input voltages by 1kΩ series resistors and

back-to-back triple diodes across the inputs (Figure 6).

For differential voltages less than 1.8V, input resistance is

typically 500kΩ. For differential input voltages greater than 1.8V, input resistance is approximately 2kΩ. The

input bias current is given by the following equation:

I

BIAS

= (V

- 1.8V) / 2kΩ

DIFF

Rail-to-Rail Output Stage

The minimum output is within millivolts of ground for single-supply operation, where the load is referenced to ground (VEE). Figure 7 shows the input voltage range and the output voltage swing of a MAX4165 connected as a voltage follower. The maximum output voltage swing is load dependent; however, it is guaranteed to be within 430mV of the positive rail (VCC= 5V) even

with maximum load (25Ω to ground).

Figure 7. Rail-to-Rail Input/Output Range

The MAX4165–MAX4169 have a high tolerance for capacitive loads. They are stable with capacitive loads up to 250pF. Figure 8 is a graph of the stable operating region for various capacitive loads vs. resistive loads. Figures 9 and 10 show the transient response with excessive capacitive loads (1500pF), with and without the addition of an isolation resistor in series with the output. Figure 11 shows a typical noninverting capacitive-load-driving circuit in the unity-gain configuration. The resistor improves the circuit’s phase margin by isolating the load capacitor from the op amp’s output.

(1V/div)

OUT

(1V/div)

IN

VCC = +3.0V

= 100kΩ

R

L

MAX4165-fig07

TIME (5µs/div)

Driving Capacitive Loads

MAX4165–MAX4169

______________________________________________________________________________________ 11

High-Output-Drive, Precision, Low-Power, SingleSupply, Rail-to-Rail I/O Op Amps with Shutdown

1300

V

1200 1100 1000

CAPACITIVE LOAD (pF)

300

to V

/ 2

R

L

CC

900

UNSTABLE REGION

800 700 600 500 400

200 100

0

10 100k

100 1k 10k

STABLE REGION

RESISTIVE LOAD (kΩ)

= +5.0V

CC

MAX4165-fig08

(20mV/div)

VCC = +3.0V, CL = 1500pF

= 100kΩ, R

R

L

IN

OUT

= 0Ω

ISO

TIME (1µs/div)

MAX4165-fig09

Figure 8. Capacitive-Load Stability

MAX4165–MAX4169

VCC = +3.0V, CL = 1500pF

= 100kΩ, R

R

L

IN

(20mV/div)

OUT

(20mV/div)

Figure 10. Small-Signal Transient Response with Excessive Capacitive Load with Isolation Resistor

Power-Up and Shutdown Modes

The MAX4166/MAX4168 have a shutdown option. When the shutdown pin (SHDN) is pulled low, supply current drops to 58µA per amplifier (VCC= +5V), the amplifiers are disabled, and their outputs are placed in a high-impedance state. Pulling SHDN high or leaving it floating enables the amplifier. In the dual MAX4168, the two amplifiers shut down independently. Figures 12 and 13 show the MAX4166’s output voltage and supply-current responses to a shutdown pulse. The MAX4166–MAX4169 typically settle within 5µs after power-up (Figure 14).

= 39Ω

ISO

TIME (1µs/div)

MAX4165-fig10

Figure 9. Small-Signal Transient Response with Excessive Capacitive Load

R

ISO

C

L

Figure 11. Capacitive-Load-Driving Circuit

Power Supplies and Layout

The MAX4165–MAX4169 can operate from a single +2.7V to +6.5V supply, or from dual ±1.35V to ±3.25V supplies. For single-supply operation, bypass the power supply with a 0.1µF ceramic capacitor in parallel with at least 1µF. For dual-supply operation, bypass each supply to ground. Good layout improves performance by decreasing the amount of stray capacitance at the op amps’ inputs and outputs. Decrease stray capacitance by placing external components close to the op amps’ pins, minimizing trace and lead lengths.

12 ______________________________________________________________________________________

MAX4165–MAX4169

High-Output-Drive, Precision, Low-Power, Single-

Supply, Rail-to-Rail I/O Op Amps with Shutdown

______________________________________________________________________________________ 13

SHDN

(1V/div)

OUT

(1V/div)

MAX4165-fig12

TIME (5µs/div)

Figure 12. Shutdown Output Voltage Enable/Disable

SHDN

(1V/div)

I

CC

(1mA/div)

MAX4165-fig13

TIME (50µs/div)

Figure 13. Shutdown Enable/Disable Supply Current

V

CC

(1V/div)

OUT

(2V/div)

MAX4165-fig14

TIME (5µs/div)

Figure 14. Power-Up/Down Output Voltage

V

CC

(1V/div)

I

EE

(1mA/div)

MAX4165-fig15

TIME (5µs/div)

Figure 15. Power-Up/Down Supply Current

MAX4165–MAX4169

14 ______________________________________________________________________________________

High-Output-Drive, Precision, Low-Power, SingleSupply, Rail-to-Rail I/O Op Amps with Shutdown

Pin Configurations (continued)

TOP VIEW

N.C.

IN-

IN+

V

1

2

MAX4166

3

4

EE

8 7 SHDN

V

CC

6

OUT

5

N.C.

DIP/SO/μMAX

OUT1

IN1-

IN1+

N.C.

SHDN1

1

2

3

4

EE

MAX4168

5

6

7

14

13

12

11

10

9

8

V

OUT2

IN2-

IN2+V

N.C.

SHDN2

N.C.N.C.

IN+

1

N.C. IN-

2

MAX4166

3

V

EE

4

OUT

μDFN

(2mm x 2mm x 0.8mm)

1

OUT1

2

IN1-

IN1+

EE

3

4

5

MAX4168

μMAX

CC

10

1

8

SHDN

7

6

N.C.

5

V

CC

OUT1

IN1-

IN1+

V

2

MAX4167

3

4

EE

8 7 V

6

5

CC

OUT2

IN2-

IN2+

DIP/SO

V

CC

9

OUT2

IN2-

8

7

IN2+V

6

SHDN2SHDN1

OUT1

IN1-

IN1+

V

IN2+

IN2-

CC

1

2

3

4

5

6

7

MAX4169

14

13

12

11

10

OUT4

IN4-

IN4+

V

EE

IN3+

9

IN3-

OUT3OUT2

8

DIP/SO

MAX4165-MAX4169

High-Output-Drive, Precision, Low-Power, Single-

Supply, Rail-to-Rail I/O Op Amps with Shutdown

______________________________________________________________________________________

15

Package Information

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages

.)

Typical Operating Circuit Ordering Information (continued)

V

CC

R3

C1

V

IN

R4

MAX4165 MAX4166

C2

PART TEMP RANGE

MAX4167EPA

-40°C to +85°C 8 Plastic DIP —

MAX4167ESA -40°C to +85°C 8 SO —

MAX4168EPD

-40°C to +85°C 14 Plastic DIP — MAX4168ESD -40°C to +85°C 14 SO —

MAX4168EUB -40°C to +85°C 10 μMAX —

MAX4169EPD

-40°C to +85°C 14 Plastic DIP —

PIN-

PACKAGE

MAX4169ESD -40°C to +85°C 14 SO —

R2

32Ω

R1

___________________Chip Information

MAX4165 TRANSISTOR COUNT: 230 MAX4166 TRANSISTOR COUNT: 230

C3

MAX4167 TRANSISTOR COUNT: 462 MAX4168 TRANSISTOR COUNT: 462 MAX4169 TRANSISTOR COUNT: 924

TOP

MARK

8

1

TOP VIEW

Ø0.50±0.1

D

E H

4X S

BOTTOM VIEW

8

1

DIM

A A1 A2 b

c D e

E

H

L

α

S

INCHES

MIN

-

0.002

0.030

0.010

0.005

0.116

0.0256 BSC

0.116

0.188

0.016 0°

0.0207 BSC

MAX

0.043

0.006

0.037

0.014

0.007

0.120

0.198

0.026 6°

MILLIMETERS

MAX

MIN

-1.10

0.05 0.15

0.950.75

0.25 0.36

0.13 0.18

2.95 3.05

0.65 BSC

2.95 3.05

5.03

4.78

0.66

0.41 6°0°

0.5250 BSC

8LUMAXD.EPS

0.6±0.1

A2

e

FRONT VIEW

A1

A

c

b

L

SIDE VIEW

α

PROPRIETARY INFORMATION

TITLE:

PACKAGE OUTLINE, 8L uMAX/uSOP

21-0036

REV.DOCUMENT CONTROL NO.APPROVAL

1

J

1

16 ______________________________________________________________________________________

MAX4165-MAX4169

High-Output-Drive, Precision, Low-Power, SingleSupply, Rail-to-Rail I/O Op Amps with Shutdown

Package Information (continued)

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages

.)

SOT-23 5L .EPS

0.6±0.1

PACKAGE OUTLINE, SOT-23, 5L

21-0057

e

10

Ø0.50±0.1

1

0.6±0.1

TOP VIEW

D2

A2

D1

FRONT VIEW

4X S

H

BOTTOM VIEW

GAGE PLANE

A

b

α

A1

10

1

E2

E1

L

L1

INCHES

DIM

MIN

-A

0.002

A1 A2 0.030 0.037 0.75 0.95

0.116

D1

0.114

D2

0.116

E1 E2

0.114

H

0.187

L

0.0157

L1

0.037 REF

0.007

b e

0.0197 BSC

0.0035

c

0.0196 REF

S

α

0° 0° 6°

c

MAX

0.043

0.006

0.120

0.118

0.120

0.118

0.199

0.0275

0.0106

0.0078

6°

MILLIMETERS

MIN

-

0.05

2.95

2.89

2.95

2.89

4.75

0.40

0.940 REF

0.177

0.500 BSC

0.090

0.498 REF

SIDE VIEW

PROPRIETARY INFORMATION

TITLE:

PACKAGE OUTLINE, 10L uMAX/uSOP

21-0061

MAX

1.10

0.15

3.05

3.00

3.05

3.00

5.05

0.70

0.270

0.200

REV.DOCUMENT CONTROL NO.APPROVAL

E

1

10LUMAX.EPS

MAX4165-MAX4169

High-Output-Drive, Precision, Low-Power, Single-

Supply, Rail-to-Rail I/O Op Amps with Shutdown

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________

17

Package Information (continued)

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages

.)

-DRAWING NOT TO SCALE-

D

XXXX XXXX XXXX

PIN 1 INDEX AREA

SAMPLE MARKING

7

A1

A

E

b

A

A2

L

e

C

L

e

EVEN TERMINAL

b

A A

(N/2 -1) x e)

PACKAGE OUTLINE, 6, 8, 10L uDFN, 2x2x0.80 mm

21-0164

N

1

C

L

e

ODD TERMINAL

SOLDER MASK COVERAGE

PIN 1

0.10x45∞

L1

L

1

A

2

6, 8, 10L UDFN.EPS

COMMON DIMENSIONS

SYMBOL MIN. NOM.

A

0.70 0.75

A1

0.15 0.20 0.25

A2

0.020 0.025 0.035

D 1.95 2.00

1.95 2.00

E

L

0.30 0.40

L1

PACKAGE VARIATIONS

PKG. CODE N e b

-DRAWING NOT TO SCALE-

6L622-1 0.65 BSC 0.30±0.05

0.10 REF.

MAX.

0.80

2.05

-

2.05

0.50

(N/2 -1) x e

1.30 REF.

0.25±0.050.50 BSC8L822-1

1.50 REF.

0.20±0.030.40 BSC10L1022-1

1.60 REF.

PACKAGE OUTLINE, 6, 8, 10L uDFN, 2x2x0.80 mm

21-0164

2

A

2

MAXIM MAX4165, MAX4169 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual