MAXIM MAX9617, MAX9620 User Manual

19-4753; Rev 5; 7/11

EVALUATION KIT

AVAILABLE

Single/Dual SC70, Zero-Drift,

High-Efficiency, 1.5MHz Op Amps with RRIO

General Description

The MAX9617–MAX9620 are low-power, zero-drift oper­ational amplifiers available in space-saving SC70 pack­ages. They are designed for use in portable consumer,
medical, and industrial applications.

The MAX9617–MAX9620 feature rail-to-rail CMOS inputs
and outputs, a 1.5MHz GBW at just 59FA supply current
and 10FV (max) zero-drift input offset voltage over time
and temperature. The zero-drift feature reduces the high
1/f noise typically found in CMOS input operational ampli­fiers, making it useful for a wide variety of low-frequency
measurement applications.

The MAX9617 and MAX9619 are available in a space­saving, 2mm x 2mm, 6-pin SC70 package. The MAX9619
features a power-saving shutdown mode. The MAX9618
is available in a 2mm x 2mm, 8-pin SC70 package. The
MAX9620 is available in a 2mm x 2mm, 5-pin SC70
package. All devices are specified over the -40NC to
+125NC automotive operating temperature range.

Features

Low 59µA Quiescent Current

S

Very-Low 10µV (max) Input Offset Voltage

S

Dual Version Available in an 8-Pin SC70 Package

S

Low Input Noise

S

42nV/√Hz at 1kHz

0.42µV

Rail-to-Rail Inputs and Outputs

S

1.5MHz GBW

S

Ultra-Low 10pA Input Bias Current

S

Single 1.8V to 5.5V Supply Voltage Range

S

Unity-Gain Stable

S

Power-Saving Shutdown Mode (MAX9619)

S

Available in Tiny 5-Pin SC70 (MAX9620), 6-Pin

S

SC70 (MAX9617/MAX9619), and 8-Pin SC70
(MAX9618) Packages

from 0.1Hz to 10Hz

P-P

MAX9617–MAX9620

Applications

Sensor Interfaces

Loop-Powered Systems

Portable Medical Devices

Battery-Powered Devices

Cardiac Monitors

Ordering Information

PART TEMP RANGE PIN-PACKAGE

MAX9617AXT+
MAX9618AXA+
MAX9619AXT+
MAX9620AXK+

-40NC to +125NC

-40NC to +125NC

-40NC to +125NC

-40NC to +125NC

+Denotes a lead(Pb)-free/RoHS-compliant package.

6 SC70
8 SC70
6 SC70
5 SC70

Functional Diagrams

TOP VIEW

IN+

GND

MAX9617

1

2

IN-

3

+

-

V

6

5

4

V

OUT

OUTA

DD

INA-

DD

INA+

GND

MAX9618

1

-

2

+

3

4

8

7

6

-

+

5

V

DD

OUTB

INB-

INB+

IN+

GND

IN-

MAX9619

1

2

3

+

-

6

5

4

V

DD

SHDN

OUT

IN+

GND

IN-

MAX9620

1

2

3

+

-

V

5

DD

4

OUT

_______________________________________________________________ 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.

Single/Dual SC70, Zero-Drift,
High-Efficiency, 1.5MHz Op Amps with RRIO

ABSOLUTE MAXIMUM RATINGS

IN+, IN-, SHDN, (VDD to GND) ............................... -0.3V to +6V

OUT to GND ............................................. -0.3V to (VDD + 0.3V)

Short-Circuit Duration to Either Supply Rail,

OUT, OUTA, OUTB ............................................................ 10s

Continuous Input Current (any pins) ............................... ±20mA

Continuos Power Dissipation (TA = +70NC)

5-Pin SC70 (derate 3.1mW/NC above +70NC) .............247mW

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

(VDD = +3.3V, V
are at +25NC.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

POWER SUPPLY

MAX9617–MAX9620

Supply Voltage Range V

Supply Current
(per Amplifier)

Power-Supply Rejection Ratio
(Note 2)

Power-Up Time t
Shutdown Supply Current

Turn-On Time from Shutdown
(MAX9619)

DC SPECIFICATIONS

Input Offset Voltage (Note 2) V

Input Offset Voltage Drift (Note 2)

Input Bias Current (Note 2) I

Input Offset Current I

Input Common-Mode Range V

Common-Mode Rejection Ratio
(Note 2)

Open-Loop Gain (Note 2) AV

GND

= 0V, V

IN+

= V

= VDD/2, RL = 100kI to VDD/2, TA = -40NC to +125NC, unless otherwise noted. Typical values

IN-

Guaranteed by PSRR, 0NC P TA P +70NC

DD

Guaranteed by PSRR, -40NC P TA P +125NC

I

PSRR

I

SHDN

t

OSD

DV

CMRR

TA = +25NC

DD

-40NC P TA P +125NC

VDD = 1.8V to 5.5V

0NC P TA P +70NC, VDD = 1.6V to 5.5V
VDD = 0V to 3V step, AV = 1V/V 20

ON

MAX9619 only 300 nA

VDD = 3.3V, V

TA = +25NC

OS

-40NC P TA P +125NC

OS

TA =+25NC

-40NC P TA P +85NC

B

-40NC P TA P +125NC

OS

Guaranteed by

CM

CMRR test

-0.1V P VCM P VDD + 0.1V, TA = +25NC

-0.1V P VCM P VDD + 0.05V,

-40NC P TA P +125NC

20mV P V
RL = 100kI to VDD/2

OL

150mV P V
RL = 5kI to VDD/2

OUT

OUT

6-Pin SC70 (derate 3.1mW/NC above +70NC) ..........245.4mW

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

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

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

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

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

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

1.6 5.5

1.8 5.5
59 78

111

TA = +25NC

-40NC P TA P +125NC

= 0V to 3.3V step

SHDN

TA = +25NC

-40NC P TA P +125NC

P VDD - 20mV,

P VDD - 150mV,

119 135
107
116 135

50

0.8 10
25

5 120

31 80

95

580

5 pA

-0.1 VDD + 0.1

-0.1 VDD + 0.05
122 135

116

120 138

123 160

V

FA

dB

Fs

Fs

FV

nV/NC

pA

V

dB

dB

2 ______________________________________________________________________________________

Single/Dual SC70, Zero-Drift,

High-Efficiency, 1.5MHz Op Amps with RRIO

ELECTRICAL CHARACTERISTICS (continued)

(VDD = +3.3V, V
are at +25NC.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Input Resistance R

Output-Voltage Swing

Short-Circuit Current I

AC SPECIFICATIONS

Gain-Bandwidth Product GBWP 1.5 MHz
Slew Rate SR
Input Voltage-Noise Density e
Input Voltage Noise
Input Current-Noise Density i
Phase Margin CL = 20pF 60 Degrees
Capacitive Loading C
Crosstalk f = 10kHz (MAX9618) -100 dB

LOGIC INPUT (MAX9619)

Shutdown Input Low V
Shutdown Input High V
Shutdown Input Leakage Current IIL/I

Note 1: Specifications are 100% tested at TA = +25NC (exceptions noted). All temperature limits are guaranteed by design.
Note 2: Guaranteed by design.

GND

= 0V, V

IN+

= V

= VDD/2, RL = 100kI to VDD/2, TA = -40NC to +125NC, unless otherwise noted. Typical values

IN-

Differential 50

IN

Common mode 200

RL = 100kI to VDD/2

V

OH

VDD - V

OUT

RL = 5kI to VDD/2
RL = 600I to VDD/2

50

RL = 100kI to VDD/2

V

SC

OL

V

OUT

RL = 5kI to VDD/2
RL = 600I to VDD/2

50

150 mA

0V P V
f = 1kHz 42

n

OUT

P 2V

0.1Hz P f P 10Hz
f = 1kHz 100

n

No sustained oscillation, AV = 1V/V 400 pF

L

IL

IH

IH

1.3 V

0.7

0.42

1 100 nA

12
22

11
18

0.5 V

MI

mV

V/Fs

nV/√Hz

FV

P-P

fA/√Hz

MAX9617–MAX9620

Typical Operating Characteristics

(VDD = +3.3V, V

= 0V, outputs have RL = 100kI connected to VDD/2. TA = +25NC, unless otherwise specified.)

GND

INPUT OFFSET VOLTAGE

DRIFT HISTOGRAM

-0.03
OFFSET VOLTAGE DRIFT (FV/NC)

MAX9617 toc02

0.01 0.02 0.03 0.04-0.02 -0.01 0

25

20

15

10

FREQUENCY (%)

5

0

0

OFFSET VOLTAGE HISTOGRAM

OFFSET VOLTAGE (FV)

20

MAX9617 toc01

4321

18

16

14

12

10

8

FREQUENCY (%)

6

4

2

0

_______________________________________________________________________________________ 3

Single/Dual SC70, Zero-Drift,
High-Efficiency, 1.5MHz Op Amps with RRIO

Typical Operating Characteristics (continued)

(VDD = +3.3V, V

= 0V, outputs have RL = 100kI connected to VDD/2. TA = +25NC, unless otherwise specified.)

GND

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

MAX9617 toc03

100

90

80

70

60

50

40

30

SUPPLY CURRENT (FA)

20

10

120

100

80

60

40

SUPPLY CURRENT (FA)

20

MAX9617–MAX9620

0

1.6 5.6

TA = +125NC

TA = +25NC

TA = -40NC

5.14.64.13.63.12.62.1

SUPPLY VOLTAGE (V)

INPUT OFFSET VOLTAGE

vs. TEMPERATURE

6

5

4

(FV)

3

OS

V

2

1

0

-50 125
TEMPERATURE (NC)

1007550250-25

300

250

MAX9617 toc06

200

150

100

INPUT BIAS CURRENT (pA)

50

COMMON-MODE REJECTION RATIO

vs. TEMPERATURE

140

120

100

CMRR (dB)

80

60

40

-50 125
TEMPERATURE (NC)

1007550250-25

MAX9617 toc09

140

120

100

80

PSRR (dB)

60

40

20

SUPPLY CURRENT

vs. TEMPERATURE

0

-50 125
TEMPERATURE (NC)

1007525 500-25

INPUT BIAS CURRENT

vs. INPUT COMMON MODE

NONINVERTING INPUT

0

-0.1 3.4

INVERTING INPUT

2.92.41.91.40.90.4

INPUT COMMON MODE (V)

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

0

0.1 10M
FREQUENCY (Hz)

1M100k10k1k100101

MAX9617 toc04

MAX9617 toc07

MAX9617 toc10

INPUT OFFSET VOLTAGE

vs. INPUT COMMON MODE

6

5

4

(FV)

3

OS

V

TA = +25NC

2

1

0

-0.1 3.4

TA = -40NC

INPUT COMMON MODE (V)

T

A

COMMON-MODE REJECTION RATIO

vs. FREQUENCY

140

120

100

80

60

CMRR (dB)

40

20

0

0.1 10M
FREQUENCY (Hz)

OUTPUT-VOLTAGE SWING HIGH

vs. TEMPERATURE

0.40

0.38

0.36

0.34

0.32

(mV)

0.30

OH

V

0.28

0.26

0.24

0.22

0.20

-50 125
TEMPERATURE (NC)

MAX9617 toc05

= +125NC

2.92.41.91.40.90.4

MAX9617 toc08

1M100k10k1k100101

MAX9617 toc11

1007525 500-25

4 ______________________________________________________________________________________