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VE S CO
AV R M
AI SIO PL
LA N IA
BL S NT
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Features
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Applications
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Lead free versions available
RoHS compliant (lead free version)*
Resistor ladder in 1:2 ratio
Stable thin-film-on-silicon technology
Ultra-miniature packages to JEDEC
standards
Digital to analog converters
Successive approximation ADCs
Ideal for space-constrained applications
*R
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
1
2
3
4
5
6
7
8
Electrical & Environmental Characteristics
Electrical Characteristics
Resistance Range
Tolerance:
Absolute
Ratio
TCR:
Absolute
Tracking
Operating Voltage
Symbol
R
Minimum
10
±1 %
±0.5 %
Nominal
Maximum
50 K
±5 %
Unit
Ω
Ω
Ω
ppm/°C
ppm/°C
V
V
°C
°C
Watt
Watt
Watt
Watt
Watt
Watt
100
25
50
2K
-55
-65
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
TJ
Tstg
+125
+150
0.1
0.75
1.00
1.12
0.60
1.00
*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.
Thin Film on Silicon 2QSP / 2NBS -XX6 R2R Ladder
Mechanical Characteristics
QSOP Package Dimensions
A
.635
TYP.
(.025)
3.81 - 3.99
(.150 - .157)
Narrow-Body SOIC Package Dimensions
A
1.27
TYP.
(.050)
3.81 - 3.99
(.150 - .157)
PIN 1
.21 - .31
(.008 - .012)
1.35 - 1.75
(.053 - .069)
PIN 1
0.36 - 0.46
(.014 - .018)
1.35 - 1.75
(.053 - .069)
.10 - .25
(.004 - .010)
.10 - .25
(.004 - .010)
0-8
°
0-8
°
.19 - .25
(.007 - .010)
5.80 - 6.20
(.228 - .244)
.19 - .25
(.007 - .010)
.41 - 1.27
(.016 - .050)
5.80 - 6.20
(.228 - .244)
.41 - 1.27
(.016 - .050)
Model
2QSP16
2QSP20
2QSP24
2QSP28
4.80
8.56
8.56
9.80
-
-
-
-
A
4.98 (.189
8.74 (.337
8.74 (.337
9.98 (.386
-
-
-
-
.196)
.344)
.344)
.393)
Model
2NBS08
2NBS14
2NBS16
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 MO-137.
Governing dimensions are in mm. Dimensions in
parentheses are in inches and are approximate.
JEDEC Reference Number MS-012.
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
Narrow-Body SOIC Package Power Temperature Derating Curve
1.25
WATTS
1.0
.75
.50
.25
0
2QSP28
2QSP20, 2QSP24
2QSP16
1.0
WATTS
.8
.6
.4
.2
2NBS14, 2NBS16
2NBS08
25
50
75
100
125
150
AMBIENT TEMPERATURE (
°
C )
0
25
50
75
100
125
150
AMBIENT TEMPERATURE (
°
C )
Schematic
2R
R
2R
8 PIN
14 PIN
16 PIN
20 PIN
24 PIN
28 PIN
Typical Part Marking
Represents total content. Layout may vary.
PIN COUNT
MODEL
CIRCUIT
PIN 1 INDICATOR
(MOLDED INDENT)
MANUFACTURER'S
TRADEMARK
QSP16J
6-103
YYWW
GRADE
RESISTANCE
CODE
DATE CODE
Standard Resistance Values
R1
Value
(ohms)
10 K
25 K
R2
Value
(ohms)
20 K
50 K
Resistance
Code
103
253
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
Dispensing
For large quantities, the product will be dispensed in Tape and Reel (see diagram below).
A0
DIMENSIONS = MM (INCHES)
B0
K0
Package
QSOP
16 Pin
20, 24 Pin
28 Pin
NBSOIC
8 Pin
14 Pin
16 Pin
A0
6.4 (0.252)
6.5 (0.256)
6.5 (0.256)
6.4 (0.252)
6.5 (0.256)
6.5 (0.256)
B0
5.2 (0.205)
9.0 (0.354)
10.3 (0.406)
9.0 (0.354)
9.0 (0.354)
9.0 (0.354)
K0
2.1 (0.083)
2.1 (0.083)
2.1 (0.083)
2.1 (0.083)
2.1 (0.083)
2.1 (0.083)
Width
12 (0.472)
16 (0.630)
16 (0.630)
12 (0.472)
16 (0.630)
16 (0.630)
Pitch
8 (0.315)
8 (0.315)
8 (0.315)
8 (0.315)
8 (0.315)
8 (0.315)
No. of Pieces No. of Pieces
per 13 ” reel
per tube
3,500
3,500
3,500
3,500
3,500
3,500
98
56
49
98
56
49
How To Order
2 QSP 20 - T J 6 - 103 __
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 %
Circuit
6 = R/2R Ladder
Resistance Value Code
1st three digits specify R1 resistance code.
Terminations
• LF = 100 % Sn (lead free)
• Blank = Sn/Pb
Reliable Electronic Solutions
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
04/05
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
