19-4753; Rev 2; 2/10 TION KIT EVALUA BLE IL AVA A Single/Dual SC70, Zero-Drift, High-Efficiency, 1.5MHz Op Amps with RRIO 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 MAX9618 is available in a 2mm x 2mm, 8-pin SC70 package and features a power-saving shutdown mode. 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 S 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 42nV/√Hz at 1kHz 0.42µVP-P from 0.1Hz to 10Hz S 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 SC70 (MAX9617/MAX9619), and 8-Pin SC70 (MAX9618) Packages Ordering Information Applications Sensor Interfaces PART TEMP RANGE PIN-PACKAGE Loop-Powered Systems MAX9617AXT+ -40NC to +125NC 6 SC70 Portable Medical Devices MAX9618AXA+ -40NC to +125NC 8 SC70 Battery-Powered Devices MAX9619AXT+ -40NC to +125NC 6 SC70 MAX9620AXK+ -40NC to +125NC 5 SC70 Cardiac Monitors +Denotes a lead(Pb)-free/RoHS-compliant package. Functional Diagrams TOP VIEW IN+ 1 MAX9617 6 VDD INA- 2 + GND 2 IN- 3 - 5 VDD INA+ 3 4 OUT MAX9618 OUTA 1 GND 4 8 VDD - IN+ 1 7 OUTB - 6 INB- + 5 INB+ 6 VDD IN+ 1 + GND 2 + MAX9619 IN- 3 - MAX9620 5 VDD + 5 SHDN GND 2 4 OUT IN- 3 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. MAX9617–MAX9620 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. MAX9617–MAX9620 Single/Dual SC70, Zero-Drift, High-Efficiency, 1.5MHz Op Amps with RRIO ABSOLUTE MAXIMUM RATINGS Supply Voltage (VDD to GND)..................................-0.3V to +6V All Other Pins, IN+ to IN-..............(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 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 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, VGND = 0V, VIN+ = VIN- = VDD/2, RL = 100kI to VDD/2, TA = -40NC to +125NC, unless otherwise noted. Typical values are at +25NC.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLY Supply Voltage Range VDD Supply Current (per Amplifier) IDD Power-Supply Rejection Ratio (Note 2) Power-Up Time PSRR Guaranteed by PSRR, 0NC P TA P +70NC 1.6 5.5 Guaranteed by PSRR, -40NC P TA P +125NC 1.8 5.5 59 TA = +25NC VDD = 1.8V to 5.5V TA = +25NC 119 -40NC P TA P +125NC 107 0NC P TA P +70NC, VDD = 1.6V to 5.5V tON 78 111 -40NC P TA P +125NC 116 VDD = 0V to 3V step, AV = 1V/V Shutdown Supply Current ISHDN MAX9619 only Turn-On Time from Shutdown (MAX9619) tOSD VDD = 3.3V, V SHDN = 0V to 3.3V step V FA 135 dB 135 20 Fs 300 50 nA Fs DC SPECIFICATIONS Input Offset Voltage (Note 2) Input Offset Voltage Drift (Note 2) Input Bias Current (Note 2) Input Offset Current Input Common-Mode Range Common-Mode Rejection Ratio (Note 2) Open-Loop Gain (Note 2) VOS 0.8 TA = +25NC 25 -40NC P TA P +125NC DVOS IB TA =+25NC CMRR AVOL 5 120 0.01 0.14 3.5 -40NC P TA P +125NC IOS VCM 10 FV nV/NC nA 0.005 Guaranteed by CMRR test TA = +25NC -0.1 VDD + 0.1 -40NC P TA P +125NC -0.1 VDD + 0.05 -0.1V P VCM P VDD + 0.1V, TA = +25NC 122 -0.1V P VCM P VDD + 0.05V, -40NC P TA P +125NC 116 20mV P VOUT P VDD - 20mV, RL = 100kI to VDD/2 120 150mV P VOUT P VDD - 150mV, RL = 5kI to VDD/2 123 V 135 dB 138 dB 160 2 _______________________________________________________________________________________ Single/Dual SC70, Zero-Drift, High-Efficiency, 1.5MHz Op Amps with RRIO (VDD = +3.3V, VGND = 0V, VIN+ = VIN- = VDD/2, RL = 100kI to VDD/2, TA = -40NC to +125NC, unless otherwise noted. Typical values are at +25NC.) (Note 1) PARAMETER SYMBOL Input Resistance RIN CONDITIONS MIN TYP Differential 50 Common mode 200 MAX MI 12 RL = 100kI to VDD/2 VOH VDD - VOUT 22 RL = 5kI to VDD/2 50 RL = 600I to VDD/2 Output-Voltage Swing VOUT 18 RL = 5kI to VDD/2 50 RL = 600I to VDD/2 Short-Circuit Current mV 11 RL = 100kI to VDD/2 VOL UNITS ISC 150 mA GBWP 1.5 MHz AC SPECIFICATIONS Gain-Bandwidth Product Slew Rate SR 0V P VOUT P 2V 0.7 V/Fs Input Voltage-Noise Density en f = 1kHz 42 nV/√Hz FVP-P Input Voltage Noise Input Current-Noise Density in Phase Margin Capacitive Loading CL Crosstalk 0.1Hz P f P 10Hz 0.42 f = 1kHz 100 CL = 20pF 60 fA/√Hz Degrees No sustained oscillation, AV = 1V/V 400 pF f = 10kHz (MAX9618) -100 dB LOGIC INPUT (MAX9619) Shutdown Input Low VIL Shutdown Input High VIH Shutdown Input Leakage Current 0.5 V 100 nA 1.3 IIL/IIH V 1 Note 1: Specifications are 100% tested at TA = +25NC (exceptions noted). All temperature limits are guaranteed by design. Note 2: Guaranteed by design. Typical Operating Characteristics (VDD = +3.3V, VGND = 0V, outputs have RL = 100kI connected to VDD/2. TA = +25NC, unless otherwise specified.) INPUT OFFSET VOLTAGE DRIFT HISTOGRAM OFFSET VOLTAGE HISTOGRAM 15 10 MAX9617 toc02 18 16 FREQUENCY (%) 20 FREQUENCY (%) 20 MAX9617 toc01 25 14 12 10 8 6 5 4 2 0 0 0 1 2 3 OFFSET VOLTAGE (FV) 4 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 OFFSET VOLTAGE DRIFT (FV/NC) _______________________________________________________________________________________ 3 MAX9617–MAX9620 ELECTRICAL CHARACTERISTICS (continued) Typical Operating Characteristics (continued) (VDD = +3.3V, VGND = 0V, outputs have RL = 100kI connected to VDD/2. TA = +25NC, unless otherwise specified.) SUPPLY CURRENT vs. TEMPERATURE 80 TA = +25NC TA = -40NC 40 5 70 4 60 VOS (FV) 80 60 90 SUPPLY CURRENT (FA) TA = +125NC 6 MAX9617 toc04 100 SUPPLY CURRENT (FA) 100 MAX9617 toc03 120 INPUT OFFSET VOLTAGE vs. INPUT COMMON MODE 50 40 TA = +125NC TA = -40NC 3 TA = +25NC 2 30 20 20 MAX9617 toc05 SUPPLY CURRENT vs. SUPPLY VOLTAGE 1 10 3.1 3.6 4.1 4.6 5.1 -50 5.6 -25 0 25 50 75 100 SUPPLY VOLTAGE (V) TEMPERATURE (NC) INPUT OFFSET VOLTAGE vs. TEMPERATURE INPUT BIAS CURRENT vs. INPUT COMMON MODE 300 MAX9617 toc06 6 250 INPUT BIAS CURRENT (pA) 5 4 3 2 -0.1 125 140 120 150 100 NONINVERTING INPUT -25 0 25 50 75 100 60 20 INVERTING INPUT -0.1 125 80 40 0.4 0.9 1.4 1.9 2.4 2.9 0 3.4 0.1 1 10 100 1k 10k 100k 1M 10M TEMPERATURE (NC) INPUT COMMON MODE (V) FREQUENCY (Hz) COMMON-MODE REJECTION RATIO vs. TEMPERATURE POWER-SUPPLY REJECTION RATIO vs. FREQUENCY OUTPUT-VOLTAGE SWING HIGH vs. TEMPERATURE 120 0.40 120 0.38 0.36 100 80 0.34 VOH (mV) PSRR (dB) 100 MAX9617 toc11 140 MAX9617 toc09 140 MAX9617 toc10 -50 3.4 100 200 0 0 0.9 1.4 1.9 2.4 2.9 INPUT COMMON MODE (V) COMMON-MODE REJECTION RATIO vs. FREQUENCY 50 1 0.4 MAX9617 toc08 2.6 CMRR (dB) 2.1 MAX9617 toc07 1.6 VOS (FV) 0 0 0 CMRR (dB) MAX9617–MAX9620 Single/Dual SC70, Zero-Drift, High-Efficiency, 1.5MHz Op Amps with RRIO 80 60 0.32 0.30 0.28 0.26 40 0.24 60 20 40 -50 -25 0 25 50 75 TEMPERATURE (NC) 100 125 0.22 0.20 0 0.1 1 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) -50 -25 0 25 50 75 TEMPERATURE (NC) 4 _______________________________________________________________________________________ 100 125 Single/Dual SC70, Zero-Drift, High-Efficiency, 1.5MHz Op Amps with RRIO OPEN-LOOP GAIN vs. FREQUENCY 120 0.32 0.30 0.28 0.26 100 80 60 40 20 0.24 0 0.22 -20 0.20 -50 -25 0 25 50 75 100 -40 -10m 100m 1 125 TEMPERATURE (NC) 10,000 INPUT VOLTAGE NOISE (nV/√Hz) 0.34 VOL (mV) 140 OPEN LOOP GAIN (dB) 0.36 MAX9617 toc13 0.38 INPUT VOLTAGE NOISE vs. FREQUENCY 160 MAX9617 toc12 0.40 MAX9617 toc14 OUTPUT-VOLTAGE SWING LOW vs. TEMPERATURE 1000 100 10 10 100 1k 10k 100k 1M 10M 0.1 1 10 FREQUENCY (Hz) 100 1k 10k MAX9617–MAX9620 Typical Operating Characteristics (continued) (VDD = +3.3V, VGND = 0V, outputs have RL = 100kI connected to VDD/2. TA = +25NC, unless otherwise specified.) 100k FREQUENCY (Hz) INPUT CURRENT NOISE vs. FREQUENCY INPUT VOLTAGE 0.1Hz TO 10Hz NOISE MAX9617 toc15 0.1FV/div MAX9617 toc16 INPUT CURRENT NOISE (fA/√Hz) 1000 100 10 0.1 1s/div 1 10 100 1k 10k FREQUENCY (Hz) LARGE-SIGNAL GAIN vs. FREQUENCY SMALL-SIGNAL GAIN vs. FREQUENCY 2VP-P 0 LARGE-SIGNAL GAIN (dB) SMALL-SIGNAL GAIN (dB) 0 -5 -10 -15 -20 -25 MAX9617 toc19 10 MAX9617 toc18 100mVP-P MAX9617 toc17 5 SMALL-SIGNAL STEP RESPONSE vs. TIME 100mVP-P -10 -20 50mV/div -30 -40 -30 -50 -35 10 100 1k 10k 100k FREQUENCY (kHz) 1M 10M 10 100 1k 10k 100k 1M 10M 100Fs/div FREQUENCY (kHz) _______________________________________________________________________________________ 5 Typical Operating Characteristics (continued) (VDD = +3.3V, VGND = 0V, outputs have RL = 100kI connected to VDD/2. TA = +25NC, unless otherwise specified.) LARGE-SIGNAL STEP RESPONSE vs. TIME CAPACITIVE LOAD vs. ISOLATION RESISTOR MAX9617 toc20 100mVP-P VIN = 100mVP-P AV = 1V/V 500mV/div POWER-UP TIME MAX9617 toc22 MAX9617 toc21 10,000 CAPACITENCE (pF) MAX9617–MAX9620 Single/Dual SC70, Zero-Drift, High-Efficiency, 1.5MHz Op Amps with RRIO SHDN 1V/div 1000 UNSTABLE OUT 1V/div 100 0.1 100Fs/div 1 10 100 20Fs/div 1000 ISOLATION RESISTOR (I) Pin Configurations TOP VIEW IN+ 1 + 6 VDD OUTA 1 + 8 VDD INA- 2 GND 2 MAX9617 IN- 3 5 SHDN INA+ 3 4 OUT + IN+ 1 6 VDD + 5 VDD 7 OUTB MAX9618 GND 4 SC70 IN+ 1 GND 2 6 INB5 INB+ MAX9619 IN- 3 5 SHDN GND 2 4 OUT IN- 3 SC70 SC70 MAX9620 4 OUT SC70 Pin Description PIN NAME FUNCTION MAX9617 MAX9618 MAX9619 MAX9620 1 — 1 1 IN+ Positive Input 2 4 2 2 GND Ground 3 — 3 3 IN- Negative Input 4 — 4 4 OUT Output 5, 6 8 6 5 VDD Positive Supply Voltage. Bypass to GND with a 0.1FF capacitor. — — 5 — — 1 — — SHDN OUTA — 2 — — INA- Channel A Negative Input — 3 — — INA+ Channel A Positive Input — 5 — — INB+ Channel B Positive Input — 6 — — INB- Channel B Negative Input — 7 — — OUTB Shutdown. Pull shutdown low to activate shutdown mode. Channel A Output Channel B Output 6 _______________________________________________________________________________________ Single/Dual SC70, Zero-Drift, High-Efficiency, 1.5MHz Op Amps with RRIO frequency of the amplifier, avoiding aliasing or other signal integrity issues in sensitive applications. The MAX9617–MAX9620 are precision, low-power op amps ideal for signal processing applications. The MAX9617, MAX9619, and MAX9620 are single-channel devices. The MAX9618 is a dual-channel device. These devices use an innovative autozero technique that allows precision and low noise with a minimum amount of power. The low input offset voltage, CMOS inputs, and the absence of 1/f noise allows for optimization of active filter designs. Shutdown Operation The MAX9619 features an active-low shutdown mode that lowers the quiescent current to less than 300nA. In shutdown mode, the inputs and output are high impedance. This allows multiple devices to be multiplexed onto a single line without the use of external buffers. Pull SHDN high for normal operation. The shutdown high (VIH) and low (VIL) threshold voltages are designed for ease of integration with digital controls like microcontroller outputs. These thresholds are independent of supply, eliminating the need for external pulldown circuitry. The MAX9617–MAX9620 achieve rail-to-rail performance at the input through the use of a low-noise charge pump. This ensures a glitch-free, common-mode input voltage range extending from the negative supply rail up to the positive supply rail, eliminating crossover distortion common to traditional n-channel/p-channel CMOS pair inputs, reducing harmonic distortion at the output. Applications Information The MAX9617–MAX9620 low-power, low-noise, and precision operational amplifiers are designed for applications in the portable medical, such as ECG and pulse oximetry, portable consumer, and industrial markets. The MAX9619 features a shutdown mode that greatly reduces quiescent current when the device is not operational. Autozero The MAX9617–MAX9620 are also ideal for loop-powered systems that interface with pressure sensors or strain gauges. The MAX9617–MAX9620 feature an autozero circuit that allows the device to achieve less than 10FV (max) of input offset voltage and eliminates the 1/f noise. Capacitive-Load Stability Internal Charge Pump Driving large capacitive loads can cause instability in many op amps. The MAX9617–MAX9620 are stable with capacitive loads up to 400pF. Stability with higher capacitive loads can be improved by adding an isolation resistor in series with the op-amp output. This resistor improves the circuit’s phase margin by isolating the load capacitor from the amplifier’s output. The graph in the Typical Operating Characteristics gives the stable operation region for capacitive load versus isolation resistors. An internal charge pump provides an internal supply typically 1V beyond the upper rail. This internal rail allows the MAX9617–MAX9620 to achieve true rail-to-rail inputs and outputs, while providing excellent common-mode rejection, power-supply rejection ratios, and gain linearity. The charge pump requires no external components, and in most applications is entirely transparent to the user. The operating frequency is well beyond the unity-gain VIN +5V MAX9617 ADC Figure 1. Typical Application Circuit: Sallen-Key Active Lowpass Filter _______________________________________________________________________________________ 7 MAX9617–MAX9620 Detailed Description MAX9617–MAX9620 Single/Dual SC70, Zero-Drift, High-Efficiency, 1.5MHz Op Amps with RRIO Power Supplies and Layout The MAX9617–MAX9620 operate either with a single supply from +1.6V to +5.5V with respect to ground or with dual supplies from Q0.8V to Q2.75V. When used with dual supplies, bypass both supplies with their own 0.1FF capacitor to ground. When used with a single supply, bypass VDD with a 0.1FF capacitor to ground. Careful layout technique helps optimize performance by decreasing the amount of stray capacitance at the op amp’s inputs and outputs. To decrease stray capacitance, minimize trace lengths by placing external components close to the op amp’s pins. Chip Information PROCESS: BiCMOS 8 _______________________________________________________________________________________ Single/Dual SC70, Zero-Drift, High-Efficiency, 1.5MHz Op Amps with RRIO 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 CODE DOCUMENT NO. 5 SC70 X5+1 21-0076 6 SC70 X6SN-1 21-0077 8 SC70 X8C+1 21-0460 SC70, 5L.EPS PACKAGE TYPE PACKAGE OUTLINE, 5L SC70 21-0076 E 1 1 _______________________________________________________________________________________ 9 MAX9617–MAX9620 Package Information Package Information (continued) 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. SC70, 6L.EPS MAX9617–MAX9620 Single/Dual SC70, Zero-Drift, High-Efficiency, 1.5MHz Op Amps with RRIO 10 ������������������������������������������������������������������������������������� Single/Dual SC70, Zero-Drift, High-Efficiency, 1.5MHz Op Amps with RRIO 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. ______________________________________________________________________________________ 11 MAX9617–MAX9620 Package Information (continued) MAX9617–MAX9620 Single/Dual SC70, Zero-Drift, High-Efficiency, 1.5MHz Op Amps with RRIO Revision History REVISION NUMBER REVISION DATE 0 7/09 Initial release 1 9/09 Removed references to MAX9617 shutdown functionality 2 2/10 Removed future product reference for the MAX9618, and added MAX9619 and MAX9620 to the data sheet DESCRIPTION PAGES CHANGED — 1, 2, 3, 6, 7 1–11 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. 12 © 2010 Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.