LT6650 Micropower, 400mV Reference with Rail-to-Rail Buffer Amplifier in SOT-23 FEATURES DESCRIPTIO Low Quiescent Current 5.6µA (typical) Wide Supply Range: 1.4V to 18V 400mV Reference ±1% Maximum Accuracy Over Temperature at 5V Rail-to-Rail Buffer Amplifier 0.5% 400mV Maximum Initial Accuracy at 5V Shunt Configurable Sinks and Sources Current Wide Operational Range 40°C to 125°C Externally Adjustable Output Voltage Low Profile 1mm 5-lead SOT-23 (ThinSOTTM) Package The LT®6650 is a micropower, low voltage 400mV reference. Operating with supplies from 1.4V up to 18V, the device draws only 5.6µA typical, making it ideal for low voltage systems as well as handheld instruments and industrial control systems. With only two resistors the internal buffer amplifier can scale the 400mV reference to any desired value up to the supply voltage. The reference is postpackage-trimmed to increase the output accuracy. The output can sink and source 200µA over temperature. Quiescent power dissipation is 28µW. Stability is ensured with any output capacitor of 1µF or higher. The LT6650 is the lowest voltage series reference available in the 5-lead SOT-23 package.
, LTC and LT are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. APPLICATIO S Battery-Operated Systems Handheld Instruments Industrial Control Systems Data Acquisition Systems Negative Voltage References TYPICAL APPLICATIO
VIN = 1.4V TO 18V IQ 6µA Battery-Powered 0.4V Reference
402 LT6650 Temperature Drift
TYPICAL LT6650 PART VIN = 5V NO LOAD SINK 200µA 400 SOURCE 200µA 399 REFERENCE VOLTAGE (mV) 4 IN VR = 400mV REFERENCE LT6650 401 +
OUT 5 VOUT 0.4V GND 1µF 2 FB 1 1µF
398 50 30 10 10 30 50 70 90 110 130 TEMPERATURE (°C)
6650 TA01b 6650 TA01a U
6650fa U U 1 LT6650 ABSOLUTE
(Note 1) AXI U RATI GS PACKAGE/ORDER I FOR ATIO
TOP VIEW FB 1 GND 2 DNC* 3 4 IN 5 OUT Total Supply Voltage (VIN to GND). 20V FB Voltage (Note 2) . 20V to (GND 0.3V) Output Voltage (OUT) . 20V to (GND 0.3V) Output Short-Circuit Duration . Indefinite FB Input Current . 10mA Operating Temperature Range . 40°C to 125°C Specified Temperature Range LT6650CS5 . 0°C to 70°C LT6650IS5 . 40°C to 85°C LT6650HS5 (Note 3) . 40°C to 125°C Maximum Junction Temperature . 150°C Storage Temperature Range (Note 4) . 65°C to 150°C Lead Temperature (Soldering, 10 sec). 300°C S5 PACKAGE 5-LEAD PLASTIC TSOT-23
*Do Not Connect TJMAX = 150°C, JA = 230°C/W ORDER PART NUMBER LT6650CS5 LT6650IS5 LT6650HS5 S5 PART MARKING LBDV LBDV …
