MAXIM MAX9613, MAX9615 User Manual

19-5338; Rev 0; 8/10

Low-Power, High-Efficiency,

Single/Dual, Rail-to-Rail I/O Op Amps

General Description

The MAX9613/MAX9615 are low-power precision op amps
with rail-to-rail inputs and rail-to-rail outputs. They feature
precision MOS inputs powered from an internal charge
pump to eliminate crossover distortion that is common
to complementary input-pair type amplifier architectures.

These devices are ideal for a large number of signal pro­cessing applications such as photodiode transimped­ance amplifiers and filtering/amplification of a wide
variety of signals in industrial equipment. The devices
also feature excellent RF immunity, making them ideal for
portable applications.

The MAX9613/MAX9615 feature a self-calibration system
(on power-up), eliminating the effects of temperature and
power-supply variations.

The MAX9613/MAX9615 are capable of operating from a

1.7V to 5.5V supply voltage over the 0NC to +70NC tem­perature range, and from 1.8V to 5.5V over the -40NC to
+125NC automotive temperature range.

Both singles and duals are available in tiny SC70 pack­ages. The MAX9613 features a high-impedance output
while in shutdown.

Applications

Notebooks, Portable Media Players

Industrial and Medical Sensors

General Purpose Signal Processing

Features

S VCC = 1.7V to 5.5V (0°C to +70°C)

S

V

= 1.8V to 5.5V (-40°C to +125°C)

CC

S

Low 100µV (max) V

OS

S Rail-to-Rail Inputs and Outputs

S

Low 220µA Supply Current, 1µA in Shutdown

S

Autotrim Offset Calibration

S

2.8MHz Bandwidth

S

Excellent RF Immunity

Ordering Information

PART

MAX9613AXT+T

MAX9615AXA+T

+Denotes lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.

TEMP

RANGE

-40NC to
+125NC

-40NC to
+125NC

PIN­PACKAGE

6 SC70 +ADK

8 SC70 +AAD

TOP

MARK

MAX9613/MAX9615

Typical Application Circuit

15nF

+3.3V

2.4kI 22kI

330pF

MAX9613

CORNER FREQUENCY = 10kHz

_______________________________________________________________ Maxim Integrated Products 1

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

10kI

3.3nF

SALLEN-KEY FILTER

ADC

MAX11613

Low-Power, High-Efficiency,
Single/Dual, Rail-to-Rail I/O Op Amps

ABSOLUTE MAXIMUM RATINGS

IN+, IN-, SHDN, VCC to GND.................................. -0.3V to +6V

OUT to GND ............................................. -0.3V to (V

Short-Circuit (GND) Duration to Either Supply Rail ................. 5s

Continuous Input Current (any pin) ................................. Q20mA

Thermal Limits (Note 1) Multilayer PCB
Continuous Power Dissipation (T

6-Pin SC70 (derate 3.1mW/NC above +70NC) .............245mW

B

.......................................................................326.5NC/W

JA

B

..........................................................................115NC/W

JC

Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-

layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.

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.

ELECTRICAL CHARACTERISTICS

MAX9613/MAX9615

(VCC = V
otherwise noted.) (Note 2)

DC CHARACTERISTICS

Input Voltage Range V

Input Offset Voltage V

Input Offset Voltage Drift V

Input Bias Current (Note 3) I

Common-Mode Rejection Ratio CMRR

Input Offset Current (Note 3) I

Open-Loop Gain A

Output Short-Circuit Current
(Note 4)

Output Voltage Low V

SHDN =

3.3V, V

IN+

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

= +70NC)

A

= V

= VCM = 0V, RL = 10kI to VCC/2, TA = -40NC to +125NC. Typical values are at TA = +25NC, unless

IN-

, V

IN+

IN-

OS

- TC 1 7

OS

B

OS

OL

I

SC

OL

+ 0.3V)

CC

Guaranteed by CMRR test -0.1

TA = +25NC

T

= -40NC to +125NC after power-up auto-

A

calibration

T

= -40NC to +125NC

A

TA = +40°C to +25°C
TA = +70°C
T

= +85°C

A

T

= +125°C

A

V

= -0.1V to VCC + 0.1V, TA = +25NC

CM

V

= -0.1V to VCC + 0.1V, TA = -40NC to

CM

+125NC

TA = +40°C to +25°C
T

= +70°C

A

T

= +85°C

A

T

= +125°C

A

+0.4V P V
To V

CC

To GND 75
RL = 10kI

= 600I

R

L

R

= 32I

L

P VCC - 0.4V, RL = 10kI

OUT

8-Pin SC70 (derate 3.1mW/NC above +70NC) .............245mW

B

JA ..........................................................................

B

..........................................................................115NC/W

JC

Operating Temperature Range ........................ -40NC to +125NC

Storage Temperature Range ............................ -65NC to +150NC

Junction Temperature .....................................................+150NC

Lead Temperature (soldering, 10s) ................................+300NC

Soldering Temperature (reflow) ......................................+260NC

+

V

CC

0.1

23 100

150

750

1 1.55

45

135

1.55 nA

82 100

80

0.5
7

25

400

99 120 dB

275

0.011

0.1

0.170

326NC/W

V

FV

FV/NC

pA

dB

pA

mA

V

2 ______________________________________________________________________________________

Low-Power, High-Efficiency,

Single/Dual, Rail-to-Rail I/O Op Amps

ELECTRICAL CHARACTERISTICS (continued)

(VCC = V
otherwise noted.) (Note 2)

Output Voltage High V

AC CHARACTERISTICS

Input Voltage Noise Density e
Input Voltage Noise Total noise
Input Current Noise Density I
Gain Bandwidth GBW 2.8 MHz
Slew Rate SR 1.3
Capacitive Loading C
Total Harmonic Distortion THD f = 10kHz, V

POWER-SUPPLY CHARACTERISTICS

Power-Supply Range V

Power-Supply Rejection Ratio PSRR

Quiescent Current I

Shutdown Supply Current
Shutdown Input Low V
Shutdown Input High V
Output Impedance in Shutdown
Turn-On Time from SHDN
Power-Up Time t

Note 2: All devices are 100% production tested at T
Note 3: Guaranteed by design, not production tested.
Note 4: Do not exceed package thermal dissipation in the Absolute Maximum Ratings section.

SHDN =

3.3V, V

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

IN+

= V

= VCM = 0V, RL = 10kI to VCC/2, TA = -40NC to +125NC. Typical values are at TA = +25NC, unless

IN-

V

-

CC

0.011

V

-

CC

0.1

V

-

CC

0.560

5

1.7 5.5
85 106
83

220 305

10 ms

OH

n

n

LOAD

CC

CC

I

SHDN

IL

IH

R

OUT_SHDN

t

ON

UP

RL = 10kI

= 600I

R

L

= 32I

R

L

f = 10kHz 28

0.1Hz P f P 10Hz
f = 10kHz 0.1

No sustained oscillation 200 pF

= 2V

OUT

Guaranteed by PSRR 1.8 5.5
T

= 0NC to +70NC, guaranteed by PSSR

A

T

= +25NC

A

T

= -40NC to +125NC

A

Per amplifier, TA = +25NC
Per amplifier 420
MAX9613 only 1
MAX9613 only 0.5 V
MAX9613 only 1.4 V
MAX9613 only 10
MAX9613 only 20

= +25NC. Temperature limits are guaranteed by design.

A

, AV = 1V/V 85 dB

P-P

nV/√Hz

FV

fA/√Hz

V/Fs

dB

FA

FA

MI

Fs

MAX9613/MAX9615

V

P-P

V

_______________________________________________________________________________________ 3

Low-Power, High-Efficiency,
Single/Dual, Rail-to-Rail I/O Op Amps

Typical Operating Characteristics

(VCC = 3.3V, V

IN+

= V

= 0V, VCM = VCC/2, RL = 10kI to VCC/2, values are at TA = +25NC, unless otherwise noted.)

IN-

OFFSET VOLTAGE vs. COMMON-MODE

VOLTAGE vs. TEMPERATURE

150

100

= -40°C

T

A

50

0

-50

OFFSET VOLTAGE (µV)

-100

-150

-200

MAX9613/MAX9615

-0.5 4.0
COMMON-MODE VOLTAGE (V)

= +25°C

T

A

TA = +85°C

TA = +125°C

3.0 3.52.52.01.51.00.50

MAX9613 toc01

OFFSET VOLTAGE (µV)

SUPPLY CURRENT vs. SUPPLY VOLTAGE

300

R

= NO LOAD

LOAD

250

200

150

100

SUPPLY CURRENT (µA)

50

0

1.5 6.5
SUPPLY VOLTAGE (V)

MAX9613 toc04

SUPPLY CURRENT (µA)

6.05.55.04.54.03.53.02.52.0

OFFSET VOLTAGE vs. SUPPLY VOLTAGE

60

50

40

30

20

10

0

1.5 5.5
SUPPLY VOLTAGE (V)

SUPPLY CURRENT vs. TEMPERATURE

300

R

= NO LOAD

LOAD

250

200

150

100

50

0

TEMPERATURE (°C)

7550250-25-50 125

100

OFFSET VOLTAGE HISTOGRAM

40

35

MAX9613 toc02

30

25

20

15

OCCURANCE (%)

10

5

5.04.54.03.53.02.52.0

0

0 60

OFFSET VOLTAGE (µV)

MAX9613 toc03

504010 20 30

INPUT BIAS CURRENT

vs. COMMON-MODE VOLTAGE

10,000

1000

MAX9613 toc05

100

10

1

INPUT BIAS CURRENT (pA)

0.1

0.01
0 3.0

TA = +125°C

TA = +85°C

TA = -40°C

COMMON-MODE VOLTAGE (V)

TA = +25°C

TA = 0°C

MAX9613 toc06

2.52.01.51.00.5

INPUT BIAS CURRENT vs.

COMMON-MODE VOLTAGE

1.0
TA = +25°C

0.8

0.6

0.4

0.2

0

-0.2

-0.4

INPUT BIAS CURRENT (pA)

-0.6

-0.8

-1.0
0 4.0

COMMON-MODE VOLTAGE (V)

100

MAX9613 toc07

10

1

INPUT BIAS CURRENT (pA)

0.1

3.53.02.0 2.51.0 1.50.5

0.01

-50 125

INPUT BIAS CURRENT

vs. TEMPERATURE

VCM = 0V

TEMPERATURE (°C)

POWER-UP TRANSIENT

MAX9613 toc08

V

OUT

200mV/div

GND

V

CC

2V/div

GND

1007550250-25

4 ______________________________________________________________________________________

MAX9613 toc09

4ms/div