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MAX9613/MAX9615

Low-Power, High-Efficiency,

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

19-5338; Rev 0; 8/10

Typical Application Circuit

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 pro-

cessing applications such as photodiode transimped-

ance 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 tem-

perature 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 pack-

ages. 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 V

= 1.7V to 5.5V (0°C to +70°C)

= 1.8V to 5.5V (-40°C to +125°C)

Low 100µV (max) V

S Rail-to-Rail Inputs and Outputs

Low 220µA Supply Current, 1µA in Shutdown

Autotrim Offset Calibration

2.8MHz Bandwidth

Excellent RF Immunity

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

T = Tape and reel.

Ordering Information

2.4kI 22kI

10kI

+3.3V

15nF

330pF

3.3nF

SALLEN-KEY FILTER

CORNER FREQUENCY = 10kHz

ADC

MAX9613

MAX11613

PART

TEMP

RANGE

PIN-

PACKAGE

TOP

MARK

MAX9613AXT+T

-40NC to

+125NC

6 SC70 +ADK

MAX9615AXA+T

-40NC to

+125NC

8 SC70 +AAD

Summary of content (12 pages)

PAGE 1
9-5338; Rev 0; 8/10 Low-Power, High-Efficiency, Single/Dual, Rail-to-Rail I/O Op Amps Features 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.
PAGE 2
MAX9613/MAX9615 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 (VCC + 0.3V) Short-Circuit (GND) Duration to Either Supply Rail.................. 5s Continuous Input Current (any pin).................................. Q20mA Thermal Limits (Note 1) Multilayer PCB Continuous Power Dissipation (TA = +70NC) 6-Pin SC70 (derate 3.
PAGE 3
Low-Power, High-Efficiency, Single/Dual, Rail-to-Rail I/O Op Amps (VCC = VSHDN = 3.3V, VIN+ = VIN- = VCM = 0V, RL = 10kI to VCC/2, TA = -40NC to +125NC. Typical values are at TA = +25NC, unless otherwise noted.) (Note 2) PARAMETER Output Voltage High SYMBOL VOH CONDITIONS MIN RL = 10kI VCC 0.011 RL = 600I VCC 0.1 TYP MAX UNITS V RL = 32I VCC 0.560 f = 10kHz 28 AC CHARACTERISTICS Input Voltage Noise Density Input Voltage Noise en Total noise 0.
PAGE 4
Typical Operating Characteristics (VCC = 3.3V, VIN+ = VIN- = 0V, VCM = VCC/2, RL = 10kI to VCC/2, values are at TA = +25NC, unless otherwise noted.) OFFSET VOLTAGE vs. COMMON-MODE VOLTAGE vs. TEMPERATURE 0 TA = +85°C -50 TA = +125°C -100 30 40 30 20 20 15 5 0 0 25 10 -200 0 1.5 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0 10 20 30 40 50 COMMON-MODE VOLTAGE (V) SUPPLY VOLTAGE (V) OFFSET VOLTAGE (µV) SUPPLY CURRENT vs. SUPPLY VOLTAGE SUPPLY CURRENT vs.
PAGE 5
Low-Power, High-Efficiency, Single/Dual, Rail-to-Rail I/O Op Amps 60 40 20 90 80 70 60 50 40 30 20 0.25 0.20 0.15 0.10 0.05 10 0 10 100 0 100 1000 10,000 100k 1k 10k FREQUENCY (Hz) FREQUENCY (kHz) MAX9613 toc13 TOTAL HARMONIC DISTORTION (dB) -60 VOUT 200mV/div GND VCC 2V/div GND VIN = 2VP-P AV = 1V/V -70 -90 -100 -110 -120 10 OUTPUT HIGH VOLTAGE vs. OUTPUT SOURCE CURRENT 3.1 TA = +25°C 3.0 TA = +85°C 2.9 2.8 2.7 TA = +125°C 2.
PAGE 6
Typical Operating Characteristics (continued) (VCC = 3.3V, VIN+ = VIN- = 0V, VCM = VCC/2, RL = 10kI to VCC/2, values are at TA = +25NC, unless otherwise noted.) STABILITY vs. CAPACITIVE AND RESISTIVE LOAD IN PARALLEL OPEN-LOOP GAIN vs. FREQUENCY 80 60 40 20 MAX9613 toc20 12 RESISTIVE LOAD (kI) 100 OPEN-LOOP GAIN (dB) 14 MAX9613 toc19 120 10 8 6 4 UNSTABLE 2 STABLE 0 0.001 0.01 0 0.
PAGE 7
Low-Power, High-Efficiency, Single/Dual, Rail-to-Rail I/O Op Amps RECOVERY FROM SATURATION OUTPUT SATURATED TO VCC OUTPUT IMPEDANCE vs. FREQUENCY MAX9613 toc25 AV = 10V/V 20 RESISTANCE (I) VOUT 1V/div MAX9613 toc26 25 GND VIN 1V/div 15 10 5 GND 0 0 10µs/div 0.
PAGE 8
Detailed Description The MAX9613/MAX9615 are low-power op amps ideal for signal processing applications due to their high precision and CMOS inputs. The MAX9613 also features a low-power shutdown mode that greatly reduces quiescent current while the device is not operational. The MAX9613/MAX9615 self-calibrate on power-up to eliminate effects of temperature and power-supply variation.
PAGE 9
Low-Power, High-Efficiency, Single/Dual, Rail-to-Rail I/O Op Amps Power-Up Autotrim The MAX9613/MAX9615 feature an automatic autotrim that self-calibrates the VOS of these devices to less than 100FV of input offset voltage (Figure 3). The autotrim sequence takes approximately 3ms to complete, and is triggered by an internal power-on reset (POR) threshold of 0.5V. During this time, the inputs and outputs are put into high impedance and left unconnected.
PAGE 10
Package Information For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE PACKAGE CODE OUTLINE No. LAND PATTERN NO. 6 SC70 X6SN-1 21-0077 90-0189 8 SC70 X8SN-1 21-0460 90-0348 SC70, 6L.
PAGE 11
Low-Power, High-Efficiency, Single/Dual, Rail-to-Rail I/O Op Amps For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status.
PAGE 12
Low-Power, High-Efficiency, Single/Dual, Rail-to-Rail I/O Op Amps MAX9613/MAX9615 Revision History REVISION NUMBER REVISION DATE 0 8/10 DESCRIPTION Initial release PAGES CHANGED — 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.