19-1950; Rev 2; 6/12 Low-Cost, Micropower, SC70/SOT23-8, Microphone Preamplifiers with Complete Shutdown The MAX4465–MAX4469 are micropower op amps optimized for use as microphone preamplifiers. They provide the ideal combination of an optimized gain bandwidth product vs. supply current, and low voltage operation in ultra-small packages. The MAX4465/ MAX4467/MAX4469 are unity-gain stable and deliver a 200kHz gain bandwidth from only 24µA of supply current. The MAX4466/MAX4468 are decompensated for a minimum stable gain of +5V/V and provide a 600kHz gain bandwidth product. In addition, these amplifiers feature Rail-to-Rail® outputs, high AVOL, plus excellent power-supply rejection and common-mode rejection ratios for operation in noisy environments. The MAX4467/MAX4468 include a complete shutdown mode. In shutdown, the amplifiers’ supply current is reduced to 5nA and the bias current to the external microphone is cut off for ultimate power savings. The single MAX4465/MAX4466 are offered in the ultra-small 5-pin SC70 package, while the single with shutdown MAX4467/MAX4468 and dual MAX4469 are available in the space-saving 8-pin SOT23 package. Features o +2.4V to +5.5V Supply Voltage Operation o Versions with 5nA Complete Shutdown Available (MAX4467/MAX4468) o Excellent Power-Supply Rejection Ratio: 112dB o Excellent Common-Mode Rejection Ratio: 126dB o High AVOL: 125dB (RL = 100kΩ) o Rail-to-Rail Outputs o Low 24µA Quiescent Supply Current o Gain Bandwidth Product: 200kHz (MAX4465/MAX4467/MAX4469) 600kHz AV ≥ 5 (MAX4466/MAX4468) o Available in Space-Saving Packages 5-Pin SC70 (MAX4465/MAX4466) 8-Pin SOT23 (MAX4467/MAX4468/MAX4469) Ordering Information PART MAX4465EXK+T Applications Microphone Preamplifiers TEMP RANGE PIN-PACKAGE -40°C to +85°C 5 SC70 MAX4465EUK+T -40°C to +85°C 5 SOT23 MAX4466EXK+T -40°C to +85°C 5 SC70 MAX4466EUK+T -40°C to +85°C 5 SOT23 +Denotes a lead(Pb)-free/RoHS-compliant package. Hearing Aids Cellular Phones Ordering Information continued at end of data sheet. Voice-Recognition Systems Typical Operating Circuit Digital Dictation Devices Headsets Portable Computing VCC Pin Configurations SHDN RBIAS MIC_BIAS TOP VIEW CBIAS + IN+ 1 GND 2 IN- 3 5 VCC RDC RBIAS IN+ OUT MAX4465 MAX4466 CIN 4 OUT SC70/SOT23 Pin Configurations continued at end of data sheet. RIN CBYPASS IN- MAX4467 MAX4468 RDC GND MICROPHONE CAPSULE RFB Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. MAX4467/MAX4468 TYPICAL OPERATING CIRCUIT WITH COMPLETE SHUTDOWN 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. 1 MAX4465–MAX4469 General Description MAX4465–MAX4469 Low-Cost, Micropower, SC70/SOT23-8, Microphone Preamplifiers with Complete Shutdown ABSOLUTE MAXIMUM RATINGS Supply Voltage (VCC to GND)................................................+6V All Other Pins to GND.................................-0.3V to (VCC + 0.3V) Output Short-Circuit Duration OUT Shorted to GND or VCC .................................Continuous Continuous Power Dissipation (TA = +70°C) 5-Pin SC70 (derate 2.5mW/°C above +70°C) .............200mW 5-Pin SOT23 (derate 7.1mW/°C above +70°C) ...........571mW 8-Pin SOT23 (derate 5.3mW/°C above +70°C) ...........421mW Operating Temperature Range ...........................-40°C to +85°C Storage Temperature Range .............................-65°C to +150°C Junction Temperature ......................................................+150°C Lead Temperature (soldering, 10s) .................................+300°C Soldering Temperature (reflow) .......................................+260°C 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 (VCC = +5V, VCM = 0V, VOUT = VCC/2, RL = ∞ to VCC/2, SHDN = GND (MAX4467/MAX4468 only). TA = TMIN to TMAX, unless otherwise noted. Typical values specified at TA = +25°C.) (Note 1) PARAMETER SYMBOL Supply Voltage Range VCC Supply Current (Per Amplifier) ICC Supply Current in Shutdown Input Offset Voltage I SHDN CONDITIONS Inferred from PSRR test MIN TYP 2.4 TA = +25°C 24 TA = TMIN to TMAX MAX UNITS 5.5 V 48 60 SHDN = VCC (Note 2) VOS µA 5 50 nA ±1 ±5 mV IB VCM = -0.1V ±2.5 ± 100 nA Input Offset Current Range IOS VCM = -0.1V ±1 ± 15 nA Input Common-Mode Range VCM Inferred from CMRR test -0.1 VCC - 0.1 V -0.1V ≤ VCM ≤ VCC - 1V 80 126 2.4V ≤ VCC ≤ 5.5V 80 112 Input Bias Current Common-Mode Rejection Ratio Power-Supply Rejection Ratio Open-Loop Gain CMRR PSRR AVOL Output Voltage Swing High VOH Output Voltage Swing Low VOL MAX4465/MAX4467/MAX4469, f = 3.4kHz 75 MAX4466/MAX4468, f = 3.4kHz 80 RL = 100kΩ to VCC/2, 0.05V ≤ VOUT ≤ VCC - 0.05V 125 80 10 RL = 10kΩ 16 RL = 100kΩ 10 RL = 10kΩ 14 To either supply rail Output Leakage Current in Shutdown SHDN = VCC, 0 ≤ VOUT ≤ VCC ; (Notes 2, 3) VIL (Note 2) SHDN Logic High VIH (Note 2) SHDN Input Current Gain Bandwidth Product 2 (Note 2) GBWP 95 RL = 100kΩ Output Short-Circuit Current SHDN Logic Low dB dB RL = 10kΩ to VCC/2, 0.1V ≤ VOUT ≤ VCC - 0.1V IVCC - VOHI dB 50 50 15 ±0.5 mV mV mA ± 100 VCC ✕ 0.3 VCC ✕ 0.7 nA V V 2 MAX4465/MAX4467/MAX4469 200 MAX4466/MAX4468 600 25 nA kHz Low-Cost, Micropower, SC70/SOT23-8, Microphone Preamplifiers with Complete Shutdown (VCC = +5V, VCM = 0V, VOUT = VCC/2, RL = ∞ to VCC/2, SHDN = GND (MAX4467/MAX4468 only), TA = TMIN to TMAX, unless otherwise noted. Typical values specified at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS Channel-to-Channel Isolation Phase Margin ØM Gain Margin MIN TYP SR Input Noise Voltage Density 85 dB RL = 100kΩ 70 degrees 20 dB Output step = 4V en Total Harmonic Distortion Capacitive Load Stability MAX4465/MAX4467/ MAX4469, AV = +1 45 MAX4466/MAX4468, AV = +5 300 mV/µs f = 1kHz 80 f = 1kHz, RL = 10kΩ, VOUT = 2Vp-p THD CLOAD UNITS MAX4469 only, f = 1kHz RL = 100kΩ Slew Rate MAX MAX4465/MAX4467/ MAX4469 0.02 MAX4466/MAX4468 0.03 MAX4465/MAX4467/MAX4469, AV = +1 100 MAX4466/MAX4468, AV = +5 100 nV/√Hz % pF SHDN Delay Time t SHDN (Note 2) 1 µs Enable Delay Time tEN (Note 2) 50 µs Power-On Time tON (Note 2) 40 Bias Switch On-Resistance RS IS = 5mA (Note 2) 20 µs Ω 500 Note 1: All specifications are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design. Note 2: Shutdown mode is available only on the MAX4467/MAX4468. Note 3: External feedback networks not considered. Typical Operating Characteristics (VCC = +5V, VCM = 0V, VOUT = VCC/2, RL= 100kΩ to VCC/2, SHDN = GND (MAX4467/MAX4468 only), TA = +25°C, unless otherwise noted.) 0.1 1 10 100 1k 10k 100k FREQUENCY (Hz) 1M MAX4465/MAX4467/MAX4469 GAIN AND PHASE vs. FREQUENCY (CL = 100pF) 1 10 100 1k 10k FREQUENCY (Hz) 100k 1M 140 120 100 80 60 40 20 0 -20 -40 -60 -80 -100 -120 -140 MAX4465-69 toc03 MAX4465-69 toc02 140 120 100 80 60 40 20 0 -20 -40 -60 -80 -100 -120 -140 -160 GAIN (dB)/PHASE (DEGREES) MAX4466/MAX4468 GAIN AND PHASE vs. FREQUENCY (NO LOAD) GAIN (dB)/PHASE (DEGREES) 140 120 100 80 60 40 20 0 -20 -40 -60 -80 -100 -120 -140 MAX4465-69 toc01 GAIN (dB)/PHASE (DEGREES) MAX4465/MAX4467/MAX4469 GAIN AND PHASE vs. FREQUENCY (NO LOAD) 0.1 1 10 100 1k 10k 100k 1M FREQUENCY (Hz) 3 MAX4465–MAX4469 ELECTRICAL CHARACTERISTICS (continued) Typical Operating Characteristics (continued) (VCC = +5V, VCM = 0V, VOUT = VCC/2, RL= 100kΩ to VCC/2, SHDN = GND (MAX4467/MAX4468 only), TA = +25°C, unless otherwise noted.) SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE -70 -90 1000 26 100 25 24 10 23 -110 -130 100 1k 10k 100k 1M -40 -15 10 35 60 85 -40 10 35 60 TEMPERATURE (°C) TEMPERATURE (°C) OUTPUT LEAKAGE CURRENT vs. TEMPERATURE CHANNEL-TO-CHANNEL ISOLATION vs. FREQUENCY INPUT OFFSET VOLTAGE vs. TEMPERATURE 1 400 200 -40 -15 10 35 60 0 -60 -200 -80 -400 -100 0.1 -600 0.1 85 1 100 10 1000 -40 -15 10 35 60 TEMPERATURE (°C) FREQUENCY (kHz) TEMPERATURE (°C) OUTPUT VOLTAGE SWING HIGH vs. TEMPERATURE OUTPUT VOLTAGE SWING LOW vs. TEMPERATURE COMMON-MODE REJECTION RATIO vs. TEMPERATURE 4 -100 MAX4465-69 toc11 5 MAX4465-69 toc10 5 85 MAX4465-69 toc09 -20 VOS (µV) 10 600 MAX4465-69 toc08 100 0 CHANNEL-TO-CHANNEL ISOLATION (dB) VSHDN = VCC VOUT = VCC/2 -40 -15 FREQUENCY (Hz) MAX4465-69 toc07 1000 ILEAK (pA) 22 1 10 4 85 MAX4465-69 toc12 PSRR (dB) -50 VSHDN = VCC MAX4465-69 toc06 SUPPLY CURRENT (pA) -30 SUPPLY CURRENT vs. TEMPERATURE 27 SUPPLY CURRENT (µA) -10 10,000 MAX4465-69 toc05 MAX4465-69 toc04 POWER-SUPPLY REJECTION RATIO vs. FREQUENCY -102 -104 3 2 CMRR (dB) VOUT - VSS (mV) -106 VDD - VOUT (mV) MAX4465–MAX4469 Low-Cost, Micropower, SC70/SOT23-8, Microphone Preamplifiers with Complete Shutdown 3 2 -108 -110 -112 -114 1 1 0 0 -116 -118 -40 -15 10 35 TEMPERATURE (°C) 4 60 85 -120 -40 -15 10 35 TEMPERATURE (°C) 60 85 -40 -15 10 35 TEMPERATURE (°C) 60 85 Low-Cost, Micropower, SC70/SOT23-8, Microphone Preamplifiers with Complete Shutdown (VCC = +5V, VCM = 0V, VOUT = VCC/2, RL= 100kΩ to VCC/2, SHDN = GND (MAX4467/MAX4468 only), TA = +25°C, unless otherwise noted.) MINIMUM OPERATING VOLTAGE LARGE-SIGNAL GAIN LARGE-SIGNAL GAIN vs. TEMPERATURE vs. TEMPERATURE vs. OUTPUT VOLTAGE 120 125 115 1.5 GAIN (dB) 105 100 VMIN (V) 1.4 110 GAIN (dB) 1.6 MAX4465-69 toc15 125 MAX4465-69 toc14 130 MAX4465-69 toc13 130 120 1.3 1.2 95 115 90 1.1 85 80 -40 -15 10 35 60 -40 85 -15 10 35 60 85 VOUT (V) TEMPERATURE (°C) TEMPERATURE (°C) MAX4465/MAX4467/MAX4469 TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY MAX4466/MAX4468 TOTAL HARMONIC DISTORTION vs. FREQUENCY MAX4465/MAX4467/MAX4469 TOTAL HARMONIC DISTORTION PLUS NOISE vs. INPUT AMPLITUDE RL = 10kΩ 0.1 RL = 10kΩ 1 0.1 MAX4465-69 toc18 MAX4465-69 toc17 100 f = 1kHz AV = +1V/V BW = 122kHz 10 THD + N (%) 1 VOUT = 2Vp-p AV = +10V/V BW = 22kHz 10 THD + N (%) VOUT = 2Vp-p AV = +1V/V BW = 22kHz 10 100 MAX4465-69 toc16 100 THD + N (%) 1.0 110 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 1 RL = 10kΩ 0.1 RL = 100kΩ 0.01 0.01 0.001 0.001 20 2k 20k 20 200 2k 0 20k FREQUENCY (Hz) MAX4466/MAX4468 TOTAL HARMONIC DISTORTION PLUS NOISE vs. INPUT AMPLITUDE NONINVERTING SMALL-SIGNAL TRANSIENT RESPONSE 0.5 1.0 1.5 2.0 2.5 3.0 VIN (Vp-p) NONINVERTING LARGE-SIGNAL TRANSIENT RESPONSE MAX4465-69 toc20 MAX4465-69 toc21 MAX4465-69 toc19 f = 1kHz AV = +10V/V BW = 22kHz 10 RL = 100kΩ 0.001 FREQUENCY (Hz) 100 THD + N (%) 200 0.01 RL = 100kΩ 1 2V/div 50mV/div RL = 10kΩ 0.1 0.01 RL = 100kΩ 0.001 0 0.05 0.10 0.15 0.20 0.25 0.30 20µs/div 200µs/div VIN (Vp-p) 5 MAX4465–MAX4469 Typical Operating Characteristics (continued) Typical Operating Characteristics (continued) MAX4465-69 toc22 30 AVCL = +1V/V 220 190 eNOISE (nV√Hz) SUPPLY CURRENT (µA) 40 MAX4465-69 toc23 (VCC = +5V, VCM = 0V, VOUT = VCC/2, RL= 100kΩ to VCC/2, SHDN = GND (MAX4467/MAX4468 only), TA = +25°C, unless otherwise noted.) SUPPLY CURRENT eNOISE vs. FREQUENCY vs. SUPPLY VOLTAGE 20 160 130 100 10 70 40 0 0 1 2 3 4 100 5 100k 1M FREQUENCY (Hz) SINK CURRENT vs. OUTPUT VOLTAGE SOURCE CURRENT vs. OUTPUT VOLTAGE 20 SOURCE CURRENT (mA) 20 MAX4465-69 toc25 25 MAX4465-69 toc24 25 VCC = +5V 15 10 VCC = +2.4V 5 10k 1k SUPPLY VOLTAGE (V) SINK CURRENT (mA) MAX4465–MAX4469 Low-Cost, Micropower, SC70/SOT23-8, Microphone Preamplifiers with Complete Shutdown 15 VCC = +5V 10 VCC = +2.4V 5 0 0 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 OUTPUT VOLTAGE (V) 1.0 1.5 2.0 2.5 3.0 OUTPUT VOLTAGE (V) Pin Description PIN NAME MAX4467 MAX4468 MAX4469 4 6 (8) — OUT — — 1 OUTA — 1 (4) — MIC_BIAS 3 2 (3) — IN- Inverting Amplifier Input 1 3 (2) — IN+ Noninverting Amplifier Input 2 4 (1) 4 GND Ground ( ) denotes S0T23 package of the MAX4467/MAX4468 6 FUNCTION MAX4465 MAX4466 Amplifier Output Amplifier Output A External Microphone Bias Network Switch Output Low-Cost, Micropower, SC70/SOT23-8, Microphone Preamplifiers with Complete Shutdown Pin Description (continued) NAME FUNCTION 8 VCC Positive Supply. Bypass with a 0.1µF capacitor to GND. — 2 INA- Inverting Amplifier Input A — — 3 INA+ Noninverting Amplifier Input A — — 6 INB- Inverting Amplifier Input B — — 5 INB+ Noninverting Amplifier Input B — — 7 OUTB Amplifier Output B — 8 (6) — SHDN Active-High Shutdown Input. Connect to GND for normal operation. Connect to VCC for shutdown. Do not leave unconnected. — 5 (5) — N.C. MAX4465 MAX4466 MAX4467 MAX4468 MAX4469 5 7 (7) — No Connection. Not internally connected. ( ) denotes SOT23 package of the MAX4467/MAX4468. Detailed Description The MAX4465–MAX4469 are low-power, micropower op amps designed to be used as microphone preamplifiers. These preamplifiers are an excellent choice for noisy environments because of their high commonmode rejection and excellent power-supply rejection ratios. They operate from a single +2.4V to +5.5V supply. The MAX4465/MAX4467/MAX4469 are unity-gain stable and deliver a 200kHz gain bandwidth from only 24µA of supply current. The MAX4466/MAX4468 have a minimum stable gain of +5V/V while providing a 600kHz gain bandwidth product. The MAX4467/MAX4468 feature a complete shutdown, which is active-high, and a shutdown-controlled output providing bias to the microphone. The MAX4465/ MAX4467/MAX4469 feature a slew rate suited to voice channel applications. The MAX4466/MAX4468 can be used for full-range audio, e.g., PC99 inputs. Rail-to-Rail Output Stage The MAX4465–MAX4469 can drive a 10kΩ load and still typically swing within 16mV of the supply rails. Figure 1 shows the output voltage swing of the MAX4465 configured with AV = +10. Switched Bias Supply When used as a microphone amplifier for an electret microphone, some form of DC bias for the microphone is necessary. The MAX4467/MAX4468 have the ability to turn off the bias to the microphone when the device is in shutdown. This can save several hundred microamps of supply current, which can be significant in low power applications. The MIC_BIAS pin provides a switched version of VCC to the bias components. Figure 3 shows some typical values. Driving Capacitive Loads Driving a capacitive load can cause instability in many op amps, especially those with low quiescent current. The MAX4465/MAX4467/MAX4469 are unity-gain stable for a range of capacitive loads up to 100pF. Figure 4 shows the response of the MAX4465 with an excessive capacitive load. Applications Information Shutdown Mode The MAX4467 and MAX4468 feature a low-power, complete shutdown mode. When SHDN goes high, the supply current drops to 5nA, the output enters a high impedance state and the bias current to the microphone is switched off. Pull SHDN low to enable the amplifier. Do not leave SHDN unconnected. Figure 5 shows the shutdown waveform. Common-Mode Rejection Ratio A microphone preamplifier ideally only amplifies the signal present on its input and converts it to a voltage appearing at the output. When used in noninverting mode, there is a small output voltage fluctuation when both inputs experience the same voltage change in the 7 MAX4465–MAX4469 PIN MAX4465–MAX4469 Low-Cost, Micropower, SC70/SOT23-8, Microphone Preamplifiers with Complete Shutdown Power Supplies and Layout common mode. The ratio of these voltages is called the common-mode gain. The common-mode rejection ratio is the ratio of differential-mode gain to common-mode gain. The high CMRR properties of the MAX4465–MAX4469 provide outstanding performances when configured as a noninverting microphone preamplifier. The MAX4465–MAX4469 operate from a single +2.4V to +5.5V power supply. Bypass the power supply with a 0.1µF capacitor to ground. Good layout techniques are necessary for the MAX4465–MAX4469 family. To decrease stray capacitance, minimize trace lengths by placing external components close to the op amp’s pins. Surface-mount components are recommended. In systems where analog and digital grounds are available, the MAX4465–MAX4469 should be connected to the analog ground. Power-Up The MAX4465–MAX4469 outputs typically settle within 1µs after power-up. Figure 6 shows the output voltage on power-up. Test Circuits/Timing Diagrams 1V/div 100µs/div Figure 1. Rail-to-Rail Output Operation +5V +5V 2kΩ VCC = +5V 5 0.1µF 2kΩ MAX4466 1MΩ IN+ 1 0.01µF 4 1MΩ IN- 3 ELECTRET CAPSULE 10kΩ 2 GND 1µF 100kΩ 100pF Figure 2. MAX4466 Typical Application Circuit 8 OUT Low-Cost, Micropower, SC70/SOT23-8, Microphone Preamplifiers with Complete Shutdown VCC SHDN MIC_BIAS 1kΩ 100kΩ IN+ 10µF OUT 2.2kΩ 100kΩ 0.01µF IN- MAX4468 MICROPHONE INPUT GND 0.1µF 3.5mm SOCKET 200kΩ 20kΩ 47pF Figure 3. Bias Network Circuit RL = 10kΩ CL = 10pF CL = 2000pF SHDN 2V/div 50mV/div OUT 40µs/div Figure 4. Small-Signal Transient Response with Excessive Capacitive Load 400µs/div Figure 5. MAX4467/MAX4468 Shutdown Waveform 9 MAX4465–MAX4469 Test Circuits/Timing Diagrams (continued) MAX4465–MAX4469 Low-Cost, Micropower, SC70/SOT23-8, Microphone Preamplifiers with Complete Shutdown Test Circuits/Timing Diagrams (continued) Chip Information PROCESS: BiCMOS Ordering Information (continued) PART VCC 2V/div OUT 1V/div TEMP RANGE PIN-PACKAGE MAX4467EKA+T -40°C to +85°C 8 SOT23 MAX4468EKA+T -40°C to +85°C 8 SOT23 MAX4469EKA+T -40°C to +85°C 8 SOT23 +Denotes a lead(Pb)-free/RoHS-compliant package. 20µs/div Figure 6. Power-Up/Power-Down Waveform Selector Guide PART MINIMUM STABLE GAIN EXTERNAL MICROPHONE SHDN GBWP (kHz) PIN-PACKAGE MAX4465 +1 No 200 5 SC70/5 SOT23 MAX4466 +5 No 600 5 SC70/5 SOT23 MAX4467 +1 Yes 200 8 SOT23 MAX4468 +5 Yes 600 8 SOT23 MAX4469 +1 No 200 8 SOT23 Pin Configurations (continued) + GND 1 IN+ 2 IN- 3 MIC_BIAS 4 + MAX4467 MAX4468 SOT23 10 8 OUT OUTA 1 7 VCC INA- 2 6 SHDN 5 N.C. 8 VCC 7 OUTB INA+ 3 6 INB- GND 4 5 INB+ MAX4469 SOT23 Low-Cost, Micropower, SC70/SOT23-8, Microphone Preamplifiers with Complete Shutdown PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO. SOT23-5 U5+1 21-0057 90-0174 SC70 X5+1 21-0076 90-0188 SOT23-8 K8+5 21-0078 90-0176 11 MAX4465–MAX4469 Package Information For the latest package outline information and land patterns (footprints), 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. Low-Cost, Micropower, SC70/SOT23-8, Microphone Preamplifiers with Complete Shutdown MAX4465–MAX4469 Revision History REVISION NUMBER REVISION DATE 2 6/12 DESCRIPTION Added lead-free packaging information, removed SO packaging information PAGES CHANGED 1, 2, 10 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. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. 12 _______________Maxim Integrated Products, Inc. 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 © 2012 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.