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Part: CAT5120
Category:
Description: 16-Tap Minipot, Volatile Minipot, Up/down Interface
Company: Catalyst Semiconductor
Datasheet: Download CAT5120 datasheet File size : 32 kB
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Datasheet text preview:
Advance Information
CAT5120, CAT5121, CAT5122
16-Tap MiniPotTM Digitally Programmable Potentiometers with 2-Wire Interface FEATURES
s 0.3µA Ultra-low supply current s Single-supply operation: 2.7 V to 5.5 V s Glitchless switching between resistor taps s Power-on reset to midscale
H
GEN FR ALO
EE
LE
A D F R E ETM
s 2-Wire up/down serial interface s Resistance values: 10k, 50k and 100k , s Available in SC70 and SOT-23 packages
APPLICATIONS
s LCD screen adjustment s Volume control s Mechanical potentiometer replacement s Gain adjustment s Line impedance matching
DESCRIPTION
CAT5120/5121/5122 linear-taper digitally programmable p o t e n t i o m e t e r s perform the same function as a mechanical potentiometer or a variable resistor. These devices consist of a fixed resistor and a wiper contact with 32-tap points that are digitally controlled through a 2-wire up/down serial interface. The CAT5120 is configured as a potentiometer. The CAT5121 and CAT5122 are configured as variable resistors. See Pin Configurations for part functionality. Three resistance values are available: 10k , 50k and 100k. These are available in space-saving 5-pin and 6-pin SC70 and SOT-23 packages.
PIN CONFIGURE
FUNCTIONAL DIAGRAM
H
VDD 1
6H
VDD 1
5H
VDD GND
GND 2
5W
GND 2
CAT5120
U/D 3 4 CS U/D 3
CAT5122
4 CS
CS
UP/DN Counter 16-Position Decoder
W
U/D
VDD 1
6H
L
GND 2
5L
CAT5121
U/D 3 4 CS
Top View
© 2004 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice
1
Doc. No. 2121, Rev. B
CAT5120/5121/5122
PIN DESCRIPTION
Pin Number Pin Name CAT5120 1 2 3 CAT5121 1 2 3 CAT5122 1 2 3 VDD GND U/D Power Supply Ground Up/Down Control Input. With CS low, a low-to-high transition increments or decrements the wiper position. Chip Select Input. A high-to-low CS transition determines the mode: increment if U/D is high, or decrement if U/D is low. Low Terminal of Resistor Wiper Terminal of Resistor High Terminal of Resistor Pin Function
4 5 6
4 5 6
4 5
CS L W H
Doc. No. 2121, Rev. B
2
CAT5120/5121/5122
ORDERING INFORMATION
Ordering Part Number CAT5120SBI-10-T CAT5120SBI-10-T10 CAT5120TPI-10-T CAT5120TPI-10-T10 CAT5120SBI-50-T CAT5120SBI-50-T10 CAT5120TPI-50-T CAT5120TPI-50-T10 CAT5120SBI-00-T CAT5120SBI-00-T10 CAT5120TPI-00-T CAT5120TPI-00-T10 CAT5121SBI-10-T CAT5121SBI-10-T10 CAT5121TPI-10-T CAT5121TPI-10-T10 CAT5121SBI-50-T CAT5121SBI-50-T10 CAT5121TPI-50-T CAT5121TPI-50-T10 CAT5121SBI-00-T CAT5121SBI-00-T10 CAT5121TPI-00-T CAT5121TPI-00-T10 CAT5122SBI-10-T CAT5122SBI-10-T10 CAT5122TPI-10-T CAT5122TPI-10-T10 CAT5122SBI-50-T CAT5122SBI-50-T10 CAT5122TPI-50-T CAT5122TPI-50-T10 CAT5122SBI-00-T CAT5122SBI-00-T10 CAT5122TPI-00-T CAT5122TPI-00-T10 Resistor K 10 10 10 10 50 50 50 50 100 100 100 100 10 10 10 10 50 50 50 50 100 100 100 100 10 10 10 10 50 50 50 50 100 100 100 100 Top Mark JE_ JE_ JEYM JEYM JF_ JF_ JFYM JFYM JGYM JG_ JGYM JGYM JH_ JH_ JHYM JHYM JJ_ JJ_ JJYM JJYM JK_ JK_ JKYM JKYM JB_ JB_ JBYM JBYM JC_ JC_ JCYM JCYM JD_ JD_ JDYM JDYM Pin Package 6 Lead SC70 6 Lead SC70 6 Lead SOT-23 6 Lead SOT-23 6 Lead SC70 6 Lead SC70 6 Lead SOT-23 6 Lead SOT-23 6 Lead SC70 6 Lead SC70 6 Lead SOT-23 6 Lead SOT-23 6 Lead SC70 6 Lead SC70 6 Lead SOT-23 6 Lead SOT-23 6 Lead SC70 6 Lead SC70 6 Lead SOT-23 6 Lead SOT-23 6 Lead SC70 6 Lead SC70 6 Lead SOT-23 6 Lead SOT-23 5 Lead SC70 5 Lead SC70 5 Lead SOT-23 5 Lead SOT-23 5 Lead SC70 5 Lead SC70 5 Lead SOT-23 5 Lead SOT-23 5 Lead SC70 5 Lead SC70 5 Lead SOT-23 5 Lead SOT-23 Parts Per Reel 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k
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Doc. No. 2121, Rev. B
CAT5120/5121/5122
ORDERING INFORMATION (CON'T)
Ordering Part Number CAT5120SDI-10-T CAT5120SDI-10-T10 CAT5120TBI-10-T CAT5120TBI-10-T10 CAT5120SDI-50-T CAT5120SDI-50-T10 CAT5120TBI-50-T CAT5120TBI-50-T10 CAT5120SDI-00-T CAT5120SDI-00-T10 CAT5120TBI-00-T CAT5120TBI-00-T10 CAT5121SDI-10-T CAT5121SDI-10-T10 CAT5121TBI-10-T CAT5121TBI-10-T10 CAT5121SDI-50-T CAT5121SDI-50-T10 CAT5121TBI-50-T CAT5121TBI-50-T10 CAT5121SDI-00-T CAT5121SDI-00-T10 CAT5121TBI-00-T CAT5121TBI-00-T10 CAT5122SDI-10-T CAT5122SDI-10-T10 CAT5122TBI-10-T CAT5122TBI-10-T10 CAT5122SDI-50-T CAT5122SDI-50-T10 CAT5122TBI-50-T CAT5122TBI-50-T10 CAT5122SDI-00-T CAT5122SDI-00-T10 CAT5122TBI-00-T CAT5122TBI-00-T10 Resistor K 10 10 10 10 50 50 50 50 100 100 100 100 10 10 10 10 50 50 50 50 100 100 100 100 10 10 10 10 50 50 50 50 100 100 100 100 Top Mark KC_ KC_ KCYM KCYM KD_ KD_ KDYM KDYM KE_ KE_ KEYM KEYM KF_ KF_ KFYM KFYM KG_ KG_ KGYM KGYM KH_ KH_ KHYM KHYM KY_ KY_ KYYM KYYM KA_ KA_ KAYM KAYM KB_ KB_ KBYM KBYM Pin Package 6 Lead SC70 green 6 Lead SC70 green 6 Lead SOT-23 green 6 Lead SOT-23 green 6 Lead SC70 green 6 Lead SC70 green 6 Lead SOT-23 green 6 Lead SOT-23 green 6 Lead SC70 green 6 Lead SC70 green 6 Lead SOT-23 green 6 Lead SOT-23 green 6 Lead SC70 green 6 Lead SC70 green 6 Lead SOT-23 green 6 Lead SOT-23 green 6 Lead SC70 green 6 Lead SC70 green 6 Lead SOT-23 green 6 Lead SOT-23 green 6 Lead SC70 green 6 Lead SC70 green 6 Lead SOT-23 green 6 Lead SOT-23 green 5 Lead SC70 green 5 Lead SC70 green 5 Lead SOT-23 green 5 Lead SOT-23 green 5 Lead SC70 green 5 Lead SC70 green 5 Lead SOT-23 green 5 Lead SOT-23 green 5 Lead SC70 green 5 Lead SC70 green 5 Lead SOT-23 green 5 Lead SOT-23 green Parts Per Reel 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k 3k 10k
Doc. No. 2121, Rev. B
4
CAT5120/5121/5122
ABSOLUTE MAXIMUM RATINGS
VDD to GND.......... -0.3 V to +6 V All Other Pins to GND ..... -0.3 V to (VDD + 0.3) V Input and Output Latch-Up Immunity ... +200 mA Maximum Continuous Current into H, L and W 100k .......... +0.6 mA 50k .... +1.3 mA 10k .... +1.3 mA Continuous Power Dissipation (TA = +70°C) 5-pin SC70* .... 247 mW 6-pin SC70* .... 245 mW Operating Temperature Range .. -40°C to +85°C Junction Temperature ..... +150°C Storage Temperature Range ... -65°C to +150°C Soldering Temperature (soldering, 10s) .......... +300°C
*(derate 3.1mW/°C above TA = +70°C) COMMENT Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability.
ELECTRICAL CHARACTERISTICS
(VDD = 2.7 V to 5.5 V, VH = VDD, VL = 0, TA = -40°C to 85°C. Typical values are at VDD = 2.7 V, TA = 25°C, unless otherwise noted).
Symbol DC Performance Resolution CAT5120 End-to-End Resistance CAT5121 CAT5122 TCR INL DNL End-to-End Resistance Tempco Ratiometric Resistance Tempco Integral Nonlinearity Differential Nonlinearity Zero/Full-Scale Error RW Wiper Resistance +0.1 200 16 80 40 8 100 50 10 200 5 +0.5 +0.5 +0.5 600 120 60 12 ppm/° C ppm/° C LSB LSB LSB k Taps Parameter Conditions Min Typ Max Units
Digital Inputs VIH VIL Input High Voltage Input Low Voltage 0.7 x VDD 0.3 x VDD V V
Timing Characteristics (Figures 1, 2) tCU tCI tIC tIL tIH fTOGGLE U/D Mode to CS Setup CS to U/D Step Setup CS to U/D Step Hold U/D Step Low Period U/D Step High Period Up/Down Toggle Rate
(1)
25 50 25 25 25 1 100k variable resistor configuration, CL = 10pF 100k potentiometer configuration, CL = 10pF 1 0.25
ns ns ns ns ns MHz
tSETTLE
Output Settling Time
(2)
µs
5
Doc. No. 2121, Rev. B
Others parts begin by ca
CA-1 CA-2 CA-3 CA-4 CA-5 CA-6 CA-7 CA-8 CA-9 CA-10 CA-11 CA-12 CA-13 CA-14 CA-15 CA-16 CA-17 CA-18 CA-19 CA-20 CA-21 CA-22 CA-23 CA-24 CA-25 CA-26 CA-27 CA-28 CA-29 CA-30 CA-31 CA-32 CA-33 CA-34 CA-35 CA-36 CA-37 CA-38 CA-39 CA-40 CA-41 CA-42
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