Models 2QSP-XX6 and 2NBS-XX6 are obsolete and not recommended for new designs. CO M PL IA NT Features *R oH S ■ ■ ■ ■ ■ Lead free RoHS compliant* Resistor ladder in 1:2 ratio Stable thin-film-on-silicon technology Ultra-miniature packages to JEDEC standards Applications ■ ■ ■ Digital to analog converters Successive approximation ADCs Ideal for space-constrained applications Thin Film on Silicon 2QSP / 2NBS-XX6 R2R Ladder General Information Package Schematic 16 The R2R Ladder Network is used in Digital to Analog and Analog to Digital conversion. Binary weighted currents, flowing in the individual ladder segments, depend on the integrity of the R:2R relationship for an accurate conversion result. Fabricated with Tantalum Nitride on Silicon, these resistors feature excellent stability, TCR and tracking performance. R2R Ladder Networks are available in a range of miniature packages conforming to JEDEC standards. 15 14 13 12 11 10 9 2R R 2R E T E L O S B O 1 2 3 4 5 6 7 8 Electrical & Environmental Characteristics Electrical Characteristics Resistance Range Tolerance: Absolute Ratio TCR: Absolute Tracking Operating Voltage Symbol Minimum Maximum Unit R 10 Nominal 50 K Ω ±1 % ±0.5 % ±5 % Ω Ω 100 25 50 ppm/°C ppm/°C V +125 +150 0.1 V °C °C Watt 0.75 1.00 1.12 Watt Watt Watt 0.60 1.00 Watt Watt Environmental Characteristics ESD Operating Temperature Storage Temperature Power Rating per Resistor @ 70 °C Power Rating per Package @ 70 °C: QSOP: 16 Pin 20, 24 Pin 28 Pin NBSOIC: 8 Pin 14, 16 Pin *RoHS Directive 2002/95/EC Jan 27, 2003 including Annex Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. TJ Tstg 2K -55 -65 Thin Film on Silicon 2QSP / 2NBS -XX6 R2R Ladder Mechanical Characteristics QSOP Package Dimensions Narrow-Body SOIC Package Dimensions A .635 TYP. (.025) A 1.27 TYP. (.050) 3.81 - 3.99 (.150 - .157) 3.81 - 3.99 (.150 - .157) E T E L O S B O .21 - .31 (.008 - .012) PIN 1 0.36 - 0.46 (.014 - .018) PIN 1 1.35 - 1.75 (.053 - .069) 1.35 - 1.75 (.053 - .069) .10 - .25 (.004 - .010) .10 - .25 (.004 - .010) 0-8 ° .19 - .25 (.007 - .010) 0-8 ° 5.80 - 6.20 (.228 - .244) Model 2QSP16 2QSP20 2QSP24 2QSP28 4.80 8.56 8.56 9.80 - 5.80 - 6.20 (.228 - .244) .41 - 1.27 (.016 - .050) 4.98 8.74 8.74 9.98 A (.189 (.337 (.337 (.386 - .196) .344) .344) .393) Governing dimensions are in mm. Dimensions in parentheses are in inches and are approximate. Model 2NBS08 2NBS14 2NBS16 .19 - .25 (.007 - .010) .41 - 1.27 (.016 - .050) A 4.80 - 4.98 (.189 - .196) 8.56 - 8.74 (.337 - .344) 9.80 - 9.98 (.386 - .393) Governing dimensions are in mm. Dimensions in parentheses are in inches and are approximate. JEDEC Reference Number MS-012. JEDEC Reference Number MO-137. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. Thin Film on Silicon 2QSP / 2NBS -XX6 R2R Ladder QSOP Package Power Temperature Derating Curve 1.0 .75 1.0 2QSP28 2QSP20, 2QSP24 WATTS WATTS 1.25 2QSP16 .50 2NBS14, 2NBS16 .8 .6 2NBS08 .4 .2 .25 0 Narrow-Body SOIC Package Power Temperature Derating Curve 25 50 75 100 125 150 AMBIENT TEMPERATURE ( ° C ) 0 25 50 75 100 125 150 AMBIENT TEMPERATURE ( ° C ) E T E L O S B O Schematic 2R R 2R 8 PIN 14 PIN 16 PIN 20 PIN 24 PIN 28 PIN Typical Part Marking Standard Resistance Values Represents total content. Layout may vary. PIN COUNT MODEL QSP16J 6-103 YYWW CIRCUIT PIN 1 INDICATOR (MOLDED INDENT) GRADE RESISTANCE CODE DATE CODE MANUFACTURER'S TRADEMARK Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. R1 Value (ohms) R2 Value (ohms) Resistance Code 10 K 25 K 20 K 50 K 103 253 Thin Film on Silicon 2QSP / 2NBS -XX6 R2R Ladder Dispensing For large quantities, the product will be dispensed in Tape and Reel (see diagram below). A0 DIMENSIONS = MM (INCHES) E T E L O S B O B0 Package QSOP 16 Pin 20, 24 Pin 28 Pin NBSOIC 8 Pin 14 Pin 16 Pin How To Order K0 No. of Pieces No. of Pieces per 13 reel per tube A0 B0 K0 Width Pitch 6.4 (0.252) 6.5 (0.256) 6.5 (0.256) 5.2 (0.205) 9.0 (0.354) 10.3 (0.406) 2.1 (0.083) 2.1 (0.083) 2.1 (0.083) 12 (0.472) 16 (0.630) 16 (0.630) 8 (0.315) 8 (0.315) 8 (0.315) 3,500 3,500 3,500 98 56 49 6.4 (0.252) 6.5 (0.256) 6.5 (0.256) 9.0 (0.354) 9.0 (0.354) 9.0 (0.354) 2.1 (0.083) 2.1 (0.083) 2.1 (0.083) 12 (0.472) 16 (0.630) 16 (0.630) 8 (0.315) 8 (0.315) 8 (0.315) 3,500 3,500 3,500 98 56 49 2 QSP 20 - T J 6 - 103 LF Product Class Thin-Film-on-Silicon Standard Package Style QSP = QSOP NBS = Narrow-Body SOIC Pin Count QSP = 16, 20, 24, 28 NBS = 8, 14, 16 Dispensing R = Reel T = Tube Standard Grade Tolerance J= ±5 % G= ±2 % F= ±1 % Asia-Pacific: Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116 Europe: Tel: +41-41 768 5555 • Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 • Fax: +1-951 781-5700 www.bourns.com Circuit 6 = R/2R Ladder Resistance Value Code 1st three digits specify R1 resistance code. Terminations • LF = 100 % Sn (lead free) 11/10 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.