LT6657 Datasheet | Linear Technology

LT6657 1.5ppm/°C Drift, Low Noise, Buffered Reference Features nn Low Drift nn A Grade: 1.5ppm/°C Max nn B Grade: 3ppm/°C Max nn Low Noise: nn 0.5ppm P-P (0.1Hz to 10Hz) nn 0.8ppm RMS (10Hz to 1k Hz) nn Wide Supply Range to 40V nn Sources and Sinks 10m A Min nn Line Regulation: 0.2ppm/V nn Load Regulation: 2µV/m A nn Reverse Supply Protection nn Reverse Output Protection nn Low Power Shutdown: <4µA Max nn 1.5V Min Supply for 1.25V Option nn Thermal Protection nn Can Operate in Shunt Mode nn Configurable as a Negative Reference nn Available Output Voltage Options: 1.25V, 2.5V, 3V, 4.096V, 5V nn MSOP-8 Package Applications nn High Temperature Industrial nn High Resolution Data Acquisition Systems nn Instrumentation and Process Control nn Automotive Control and Monitoring nn Medical Equipment nn Shunt and Negative Voltage References Description The LT®6657 is a precision voltage reference that bines robust operating characteristics with extremely low drift and low noise. With advanced curvature pensation, this bandgap reference achieves 1.5ppm/°C drift with predictable temperature behavior, and an initial voltage accuracy of 0.1%. It also offers 0.5ppm P-P noise and very low temperature cycling hysteresis. The LT6657 is a low dropout reference that can be powered from as little as 50m V above the output voltage, up to 40V. The buffered output supports ±10m A of output drive with low output impedance and precise load regulation. The high sink current capability allows operation as a negative voltage reference with the same precision as a positive reference. This part is safe under reverse battery conditions, and includes current protection when the output is short-circuited and thermal shutdown for overload conditions. A shutdown is included to allow power reduction while enabling a quick turn-on. The LT6657 is fully specified over the temperature range of - 40°C to 125°C. It is available in the 8-lead MSOP package. L, LT, LTC, LTM, Linear Technology and the Linear...