KM4170IT5TR3

www.fairchildsemi.com KM4170, KM4270, KM4470 Low Cost, +2.7V & +5V, Rail-to-Rail I/O Amplifiers Features at 2.7V • • • • • • • • 136µA supply current per amplifier 4.9MHz bandwidth Output swings to within 20mV of either rail Input voltage range exceeds the rail by >250mV 5.3V/µs slew rate 16mA output current 21nV/√Hz input voltage noise KM4170: directly replaces OPA340, OPA343, and TLV2461 in single supply applications and available in SC70-5 and SOT23-5 package options • KM4270: directly replaces MAX4126, OPA2340, LMV822 and TLV2462 in single supply applications and available in SOIC-8 and MSOP-8 package options • KM4470: directly replaces MAX4129, OPA4340, LMV824 and TLV2464 in single supply applications and available in TSSOP-14 package option Description The KM4170 (single), KM4270 (dual), and KM4470 (quad) are ultra-low cost, low power, voltage feedback amplifiers. At 5V, the KM4X70 family uses only 160µA of supply current per amplifier and are designed to operate from a supply range of 2.5V to 5.5V (±1.25 to ±2.75). The input voltage range exceeds the negative and positive rails. The KM4X70 family of amplifiers offer high bipolar performance at a low CMOS prices. They offer superior dynamic performance with 4.9MHz small signal bandwidths and 5.3V/µs slew rates. The combination of low power, high bandwidth, and rail-to-rail performance make the KM4X70 amplifiers well suited for battery-powered communication/ computing systems. Large Signal Frequency Response Vs = 5V Applications • • • • • • • • • Portable/battery-powered applications PCMCIA, USB Mobile communications, cellular phones, pagers Notebooks and PDA’s Sensor Interface A/D buffer Active filters Signal conditioning Portable test instruments Output Voltage (0.27V/div) Magnitude (1dB/div) Vo = 1Vpp Vo = 4Vpp Vo = 2Vpp 0.01 0.1 1 10 Frequency (MHz) Output Swing vs. Load 1.35 RL = 10kΩ RL = 1kΩ 0 RL = 75Ω RL = 100Ω RL = 200Ω RL = 75/100Ω -1.35 -2.0 0 2.0 Input Voltage (0.4V/div) REV. 5 December 2002 DATA SHEET KM4170, KM4270, KM4470 KM4170 SOT23-5 SC70-5 Out -Vs +In 1 2 + 5 +Vs Out -Vs 1 2 + 5 +Vs - - 3 4 -In +In 3 4 -In KM4270 SOIC MSOP Out1 -In1 +In1 -Vs 1 2 3 4 + 8 7 + +Vs Out2 -In2 +In2 Out1 -In1 +In1 -Vs 1 2 3 4 + 8 7 + +Vs Out2 -In2 +In2 6 5 6 5 KM4470 TSSOP Out1 -In1 +In1 +Vs +In2 -In2 1 2 3 4 5 6 14 13 12 11 10 9 2 REV. 5 December 2002 KM4170, KM4270, KM4470 DATA SHEET Absolute Maximum Ratings Parameter Supply Voltages Maximum Junction Temperature Storage Temperature Range Lead Temperature, 10 seconds Operating Temperature Range, recommended Input Voltage Range Iout Continuous Min. 0 – -65 – -40 -Vs -0.5 -30 Max. +6 +175 +150 +260 +85 +Vs +0.5 +30 Unit V °C °C °C °C V mA Electrical Specifications (Vs = +2.7V, G = 2, RL = 10kΩ to Vs/2, Rf = 5kΩ; unless otherwise noted) Parameter AC Performance -3dB Bandwidth1 Full Power Bandwidth Gain Bandwidth Product Rise and Fall Time Overshoot Slew Rate 2nd Harmonic Distortion 3rd Harmonic Distortion THD Input Voltage Noise DC Performance Input Offset Voltage2 Average Drift Input Bias Current2 Average Drift Power Supply Rejection Ratio2 Open Loop Gain Quiescent Current Per Channel2 Input Characteristics Input Resistance Input Capacitance Input Common Mode Voltage Range Common Mode Rejection Ratio2 Output Characteristics Output Voltage Swing2 Conditions G = +1, Vo = 0.02Vpp G = +2, Vo = 0.2Vpp G = +2, Vo = 2Vpp 1V step 1V step 1V step 1Vpp, 10kHz 1Vpp, 10kHz 1Vpp, 10kHz >10kHz -6 Min. Typ. 4.9 3.7 1.4 2.2 163 10kHz -8 Min. Typ. 4.3 3.0 2.3 2.0 110