LT6233-10| Datasheet

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LT6233/LT6233-10/ LT6234/LT6235 60MHz, Rail-to-Rail Output, 1.9nV/Hz, 1.2mA Op Amp Family
FEATURES
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DESCRIPTIO

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Low Noise Voltage: 1.9nV/Hz Low Supply Current: 1.2mA/Amp Max Low Offset Voltage: 350uV Max Gain Bandwidth Product: LT6233: 60MHz; AV 1 LT6233-10: 375MHz; AV 10 Wide Supply Range: 3V to 12.6V Output Swings Rail-to-Rail Common Mode Rejection Ratio 115dB Typ Output Current: 30mA Operating Temperature Range 40 C to 85 C LT6233 Shutdown to 10uA Maximum LT6233/LT6233-10 in SOT-23 Package Dual LT6234 in 8-Pin SO and Tiny DFN Packages LT6235 in 16-Pin SSOP Package

The LT 6233/LT6234/LT6235 are single/dual/quad low noise, rail-to-rail output unity gain stable op amps that feature 1.9nV/Hz noise voltage and draw only 1.2mA of supply current per amplifier. These amplifiers combine very low noise and supply current with a 60MHz gain bandwidth product, a 17V/us slew rate and are optimized for low supply voltage signal conditioning systems. The LT6233-10 is a single amplifier optimized for higher gain applications resulting in higher gain bandwidth and slew rate. The LT6233 and LT6233-10 include an enable pin that can be used to reduce the supply current to less than 10uA. The amplifier family has an output that swings within 50mV of either supply rail to maximize the signal dynamic range in low supply applications and is specified on 3.3V, 5V and 5V supplies. The en ISUPPLY product of 2.1 per amplifier is among the most noise efficient of any op amp. The LT6233/LT6233-10 is available in the 6-lead SOT-23 package and the LT6234 dual is available in the 8-pin SO package w
ith standard pinouts. For compact layouts, the dual is also available in a tiny dual fine pitch leadless package (DFN). The LT6235 is available in the 16-pin SSOP package.

APPLICATIO S
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Ultrasound Amplifiers Low Noise, Low Power Signal Processing Active Filters Driving A/D Converters Rail-to-Rail Buffer Amplifiers
, LTC and LT are registered trademarks of Linear Technology Corporation.

TYPICAL APPLICATIO
VS+ IN+ 1/2 LT6234 R2 475 R1 49.9 R4 499

Low Noise Low Power Instrumentation Amplifier
R6 499
NOISE VOLTAGE (nV/Hz)
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Noise Voltage and Unbalanced Noise Current vs Frequency
6 VS = 2.5V TA = 25 C VCM = 0V 5 4 3 NOISE VOLTAGE 2 1 NOISE CURRENT 0 10 100 1k 10k FREQUENCY (Hz) 0 100k
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LT6233 VOUT EN R7 VS 499 IS = 3mA EN = 8uVRMS INPUT REFERRED, MEASUREMENT BW = 4MHz
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R3 475 1/2 LT6234 IN VS AV = 20 BW = 2.8MHz VS = 1.5V to 5V R5 499

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UNBALANCED NOISE CURRENT (pA/Hz)