Features and Benefits
- Low Noise: 1.1nV/√Hz
- Low Supply Current: 3.5mA/Amp Max
- Low Offset Voltage: 350μV Max
- Fast Settling Time: 570ns to 18-Bit, 2VP-P Output
- Low Distortion: THD = –116.8dB at 2kHz
- Wide Supply Range: 3V to 12.6V
- Output Swings Rail-to-Rail
- 215MHz Gain-Bandwidth Product
- Specified Temperature Range: –40°C to 125°C
- LT6236 Shutdown to 10μA Max
- LT6236 in Low Profile (1mm) ThinSOT™ Package
- Dual LT6237 in 3mm × 3mm 8-Lead DFN and 8-Lead MSOP Packages
- LT6238 in 16-Lead SSOP Package
The LT6236/LT6237/LT6238 are single/dual/quad low noise, rail-to-rail output op amps that feature 1.1nV/√Hz input referred noise voltage density and draw only 3.5mA of supply current per amplifier. These amplifiers combine very low noise and supply current with a 215MHz gain bandwidth product and a 70V/μs slew rate. Low noise, fast settling time and low offset voltage make this amplifier optimal to drive low noise, high speed SAR ADCs. The LT6236 includes a shutdown feature that can be used to reduce the supply current to less than 10μA.
This 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 LT6236/LT6237/LT6238 are upgrades to the LT6230/LT6231/LT6232, offering similar performance with reduced wideband noise beyond 100kHz.
- 16-Bit and 18-Bit SAR ADC Drivers
- Active Filters
- Low Noise, Low Power Signal Processing
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Demonstration circuit 2402A features the LT6237 amplifier. The DC2402A includes two of these amplifiers and is designed to drive the inputs of the DC2290A demo board. The DC2290A features the LTC2387 18-bit, 15Msps High Speed SAR ADC.
Documentation & Resources
R378 Reliability Data3/22/2018
DC2402A - Demo Manual4/14/2016
SAR ADC Drivers8/29/2016
Tools & Simulations
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Models for the following parts are available in LTspice:
LT6237 Companion Parts
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Sample & Buy
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.