Precision 3.3V reference for low-power signal chains
The LT6656BCS6-3.3#TRMPBF is a series voltage reference from Analog Devices delivering a fixed 3.3V output with ±0.1% initial accuracy and a 20 ppm/°C temperature coefficient — tight enough to serve as the reference for a 16-bit ADC without external trimming. Supply current is just 1.5 µA, making this reference suitable for battery-powered instruments and always-on sensor nodes where every microamp counts.
Supply range and output drive capability
Input voltage spans 3.8 V to 18 V, so the reference can be powered from a 5 V or 12 V rail while maintaining regulation — no separate low-noise supply needed. Output current is rated at 5 mA, enough to bias the reference input of a SAR ADC and a small sensor bridge simultaneously without loading the output below its dropout margin. The TSOT-23-6 package (SOT-23-6 Thin) keeps the footprint compact — the 0.95 mm pitch and 2.9 mm body length fit easily on a two-layer board with the output capacitor placed close to the pin.
Active production and ordering detail
The #TRMPBF suffix indicates Tape & Reel packaging — the standard carrier for automated pick-and-place assembly. Cut Tape quantities are also listed for prototype or low-volume builds. ROHS3 compliance is confirmed, meeting the latest EU restriction requirements for lead-free soldering processes.