Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsData collecting ICsData acquisition IC - Digital potentiometer linear Permanent WQFN 16

QFN - RTE PACKAGE

(TOP VIEW)

1 2 3 4

910

1112

N.C.

GND

N.C.

VCC

SCLK

DIN

PREVIEW

MicroQFN - RUC PACKAGE

(TOP VIEW)

5 6

1314

VDD

SCLK

DIN

GND

LB WB

HA WA

N.C.

TPL0202

www.ti.com

SLIS135C –DECEMBER 2010–REVISED JUNE 2012

256-TAPS DUAL CHANNEL DIGITAL POTENTIOMETER WITH SPI INTERFACE AND NON-

VOLATILE MEMORY

Check for Samples: TPL0202

FEATURES

• Dual Channel, 256-Position Resolution

• Non-volatile Memory Stores Wiper Settings

• 2mm x 2mm, 14-pin MicroQFN or 3mm x 3mm,

16-pin QFN Packages

• 10 kΩ End-to-End Resistance (TPL0202-10)

• Fast Power-up Response Time: <100µs

• ±1 LSB INL, ±0.5 LSB DNL (Voltage-Divider

Mode)

• 12 ppm/°C Ratiometric Temperature

Coefficient

• SPI-Compatible Serial Interface

• 2.7 V to 5.5 V Single-Supply Operation

• Operating Temperature Range From

-40°C to +85°C

• ESD Performance Tested Per JESD 22

– 2000-V Human Body Model

(A114-B, Class II)

APPLICATIONS

• Adjustable Gain Amplifiers and Offset

Trimming

• Adjustable Power Supplies

• Precision Calibration of Set Point Thresholds

• Sensor Trimming and Calibration

• Mechanical Potentiometer Replacement

DESCRIPTION

The TPL0202 is a two channel, linear-taper digital potentiometer with 256 wiper positions. Each potentiometer

can be used as a three-terminal potentiometer or as a two-terminal rheostat. The TPL0202-10 has an end-to-end

resistance of 10kΩ.

The TPL0202 has non-volatile memory (EEPROM) which can be used to store the wiper position. The internal

registers of the TPL0202 can be accessed using a SPI-compatible digital interface.

The TPL0202 is available in a 14-pin MicroQFN (2mm x 2mm) and 16-pin QFN (3mm x 3mm) package with a

specified temperature range of -40°C to +85°C.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (30 pages)

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TPL0202 www.ti.com SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 256-TAPS DUAL CHANNEL DIGITAL POTENTIOMETER WITH SPI INTERFACE AND NONVOLATILE MEMORY Check for Samples: TPL0202 FEATURES 1 • • • • • Adjustable Gain Amplifiers and Offset Trimming Adjustable Power Supplies Precision Calibration of Set Point Thresholds Sensor Trimming and Calibration Mechanical Potentiometer Replacement N.C. 10 N.C. 9 N.C. 8 HB 8 N.C. 7 GND HA 15 6 N.C. N.C. 16 5 N.C.
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TPL0202 SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 www.ti.com ORDERING INFORMATION PACKAGE (1) TA –40°C to 85°C (1) (2) QFN – RTE (2) ORDERABLE PART NUMBER TOP-SIDE MARKING Tape and reel QFN – RUC TPL0202-10MRTER ZUR TPL0202-10RUCR TBD Package drawings, thermal data, and symbolization are available at www.ti.com/packaging. For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com. Table 1.
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TPL0202 www.ti.
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TPL0202 SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 www.ti.com Table 2. PIN DESCRIPTION TABLE 16 RTE NO. 4 NAME I/O DESCRIPTION 14 RUC NO. NAME I/O DESCRIPTION 1 N.C. Not internally connected 1 VDD Power 2 SCLK Input SPI Clock 2 SCLK Input SPI Clock 3 DIN Input SPI Input 3 DIN Input SPI Input 4 CS Input SPI Chip Select (Active Low) 4 CS Input SPI Chip Select (Active Low) 5 N.C. Not internally connected 5 GND 6 N.C.
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TPL0202 www.ti.com SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT 2.7 5.5 V 0 VDD V VDD = 3.6 V to 5.5 V 2.4 5.5 VDD = 2.7 V to 3.6 V 0.7 × VDD 5.5 0 0.
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TPL0202 SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 www.ti.com ELECTRICAL CHARACTERISTICS VDD = 2.7V to 5.5V, TA=-40°C to 85°C (unless otherwise noted). Typical values are at VDD=5V, TA=25°C (unless otherwise noted).
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TPL0202 www.ti.com SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 ELECTRICAL CHARACTERISTICS (continued) VDD = 2.7V to 5.5V, TA=-40°C to 85°C (unless otherwise noted). Typical values are at VDD=5V, TA=25°C (unless otherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT RHEOSTAT MODE (Measurements between W and L with H not connected, or between W and H with L not connected) RINL (10) (11) Integral non-linearity –1.5 1.5 LSB RDNL (10) (12) Differential non-linearity –0.5 0.
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TPL0202 SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 www.ti.com SPI INTERFACE TIMING REQUIREMENTS VDD = 2.7V to 5.
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TPL0202 www.ti.com SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 TYPICAL PERFORMANCE CURVES STANDBY CURRENT vs TEMPERATURE SUPPLY CURRENT vs DIGITAL INPUT VOLTAGE 10000 1000 2 VDD = 5 V IDD - Supply Current - mA IDD (STBY)- Standby Current - mA 2.5 1.5 VDD = 2.7 V 1 VDD = 5 V 100 VDD = 2.7 V 10 1 0.5 0 -40 -15 10 35 60 TA - Free-Air Temperature - °C 0 0 85 0.5 1 1.5 2 2.5 3 3.5 4 4.
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TPL0202 SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 www.ti.com TYPICAL PERFORMANCE CURVES (continued) VOLTAGE DIVIDER MODE INL vs SUPPLY VOLTAGE (25°C) VOLTAGE DIVIDER MODE DNL vs SUPPLY VOLTAGE (25°C) 0.4 0.3 5.5 V 5V 2.7 V 0.2 0.3 DNL - LSB INL - LSB 0.1 0.2 0.1 0 -0.1 0 -0.2 5.5 V 5V 2.7 V -0.1 0 32 64 96 128 160 Digital Code 192 -0.3 0 224 4 0 3 -1 2.7 V 2 5V 10 96 128 160 Digital Code 192 224 5.5 V -2 5V 5.5 V 2.
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TPL0202 www.ti.com SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 TYPICAL PERFORMANCE CURVES (continued) VOLTAGE DIVIDER MODE vs DIGITAL CODE RHEOSTAT MODE RINL vs TEMPERATURE (VDD = 5V) 400 0.4 VDD = 5 V TA = 85°C 0.3 TA = 25°C TA = -40°C 300 2.7 V RINL - LSB TC (ppm/C) 0.2 200 5V 0.1 0 -0.1 100 -0.2 5.5 V 0 16 80 144 Digital Code -0.3 0 208 32 RHEOSTAT MODE RDNL vs TEMPERATURE (VDD = 5V) 64 96 128 160 Digital Code 192 224 RHEOSTAT MODE RINL vs SUPPLY VOLTAGE (25°C) 0.6 0.
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TPL0202 SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 www.ti.com TYPICAL PERFORMANCE CURVES (continued) RHEOSTAT MODE RINL vs SUPPLY VOLTAGE (25°C) RHEOSTAT MODE TC vs DIGITAL CODE 0.4 600 5.5 V 5V 2.7 V 500 0.2 2.7 V TC - (ppm/C) RDNL - LSB 400 0 5V 300 200 5.5 V -0.2 100 0 16 -0.4 0 32 64 96 128 160 Digital Code 192 224 RHEOSTAT MODE OFFSET ERROR vs TEMPERATURE 80 144 Digital Code 208 WIPER AND TERMINAL RESISTANCE (VDD = 2.7V) 130 5 VDD = 2.
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TPL0202 www.ti.com SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 TYPICAL PERFORMANCE CURVES (continued) END-END RESISTANCE CHANGE vs TEMPERATURE WIPER AND TERMINAL RESISTANCE (VDD = 5V) 1.5 130 120 VDD = 5 V 110 1 2.7 V Resistance Change - % Terminal Resistance - W 100 90 80 -40°C, LB -40°C, LA 25°C, LB 25°C, LA 85°C, LB 85°C, LA 70 60 50 40 0.5 5V 0 5.5 V -0.5 30 -1 20 -40°C, WB -40°C, WA 10 0 0 0.5 1 25°C, WB 25°C, WA 1.5 2 2.5 3 3.5 VI - Input Voltage - V 85°C, WB 85°C, WA 4 4.
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TPL0202 SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 www.ti.com SPI DIGITAL INTERFACE The TPL0202 uses a 3-wire SPI-compatible serial data interface. This write-only interface has three inputs: chipselect (CS), data clock (SCLK), and data input (DIN). Drive CS low to enable the serial interface and clock data synchronously into the shift register on each SCLK rising edge. The WRITE commands (C1, C0 = 00 or 01) require 16 clock cycles to clock in the command, address, and data.
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TPL0202 www.ti.com SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 Write-Wiper Register (Command 00) Data written to the write-wiper registers (C1, C0 = 00) controls the wiper positions. The 8 data bits (D7 to D0) indicate the position of the wiper. If DIN = 0x00h, the wiper moves to the position closest to the L terminal. If DIN=0xFFh, the wiper moves to the position closest to the H terminal. This command writes data to the volatile RAM, leaving the NV registers unchanged.
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TPL0202 SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 www.ti.com CS tCSW tCS0 tCSS tCS1 tSCH tSCL tSCP tCSH SCLK tDS tDH DIN Figure 3. Digital Interface Timing Diagram APPLICATION EXAMPLE 5V WA HA VIN 3 ½ TPL0202 to Nullify Offset Voltage LA 7 + 1 8 TLE2027 2 - VOUT 4 R1 HB WB ½ TPL0202 to Adjust Gain LB Figure 4.
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TPL0202 www.ti.com SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 IDEAL RESISTANCE VALUES H RHW RTOT W RWL RWL = RTOT x D/256 RHW = RTOT x (1 –(D/256)) Where D = Decimal Value of Wiper Code L Below table shows the ideal values for DPOT with end-to End resistance of 10kΩ. The absolute values of resistance can vary significantly but the Ratio (Rhw/Rwl) is extremely accurate. Step Binary 0 10 kΩ RHW/RWL RHW (kΩ) RWL (kΩ) 0 0.00 100.00 0.00 1 1 0.39 99.61 0.00 2 10 0.78 99.22 0.
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TPL0202 SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 18 Step Binary 33 34 www.ti.com 10 kΩ RHW/RWL RHW (kΩ) RWL (kΩ) 100001 12.89 87.11 0.15 100010 13.28 86.72 0.15 35 100011 13.67 86.33 0.16 36 100100 14.06 85.94 0.16 37 100101 14.45 85.55 0.17 38 100110 14.84 85.16 0.17 39 100111 15.23 84.77 0.18 40 101000 15.63 84.38 0.19 41 101001 16.02 83.98 0.19 42 101010 16.41 83.59 0.20 43 101011 16.80 83.20 0.20 44 101100 17.19 82.81 0.
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TPL0202 www.ti.com SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 Step Binary 81 82 10 kΩ RHW/RWL RHW (kΩ) RWL (kΩ) 1010001 31.64 68.36 0.46 1010010 32.03 67.97 0.47 83 1010011 32.42 67.58 0.48 84 1010100 32.81 67.19 0.49 85 1010101 33.20 66.80 0.50 86 1010110 33.59 66.41 0.51 87 1010111 33.98 66.02 0.51 88 1011000 34.38 65.63 0.52 89 1011001 34.77 65.23 0.53 90 1011010 35.16 64.84 0.54 91 1011011 35.55 64.45 0.55 92 1011100 35.94 64.06 0.
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TPL0202 SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 20 Step Binary 129 130 www.ti.com 10 kΩ RHW/RWL RHW (kΩ) RWL (kΩ) 10000001 50.39 49.61 1.02 10000010 50.78 49.22 1.03 131 10000011 51.17 48.83 1.05 132 10000100 51.56 48.44 1.06 133 10000101 51.95 48.05 1.08 134 10000110 52.34 47.66 1.10 135 10000111 52.73 47.27 1.12 136 10001000 53.13 46.88 1.13 137 10001001 53.52 46.48 1.15 138 10001010 53.91 46.09 1.17 139 10001011 54.30 45.70 1.
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TPL0202 www.ti.com SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 Step Binary 177 178 10 kΩ RHW/RWL RHW (kΩ) RWL (kΩ) 10110001 69.14 30.86 2.24 10110010 69.53 30.47 2.28 179 10110011 69.92 30.08 2.32 180 10110100 70.31 29.69 2.37 181 10110101 70.70 29.30 2.41 182 10110110 71.09 28.91 2.46 183 10110111 71.48 28.52 2.51 184 10111000 71.88 28.13 2.56 185 10111001 72.27 27.73 2.61 186 10111010 72.66 27.34 2.66 187 10111011 73.05 26.95 2.
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TPL0202 SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 22 Step Binary 225 226 www.ti.com 10 kΩ RHW/RWL RHW (kΩ) RWL (kΩ) 11100001 87.89 12.11 7.26 11100010 88.28 11.72 7.53 227 11100011 88.67 11.33 7.83 228 11100100 89.06 10.94 8.14 229 11100101 89.45 10.55 8.48 230 11100110 89.84 10.16 8.85 231 11100111 90.23 9.77 9.24 232 11101000 90.63 9.38 9.67 233 11101001 91.02 8.98 10.13 234 11101010 91.41 8.59 10.64 235 11101011 91.80 8.20 11.
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TPL0202 www.ti.com SLIS135C – DECEMBER 2010 – REVISED JUNE 2012 REVISION HISTORY Changes from Revision B (August, 2011) to Revision C Page • Updated QFN pin out diagram. ............................................................................................................................................. 1 • Updated Pin Description Table. ............................................................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Apr-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device TPL0202-10MRTER Package Package Pins Type Drawing WQFN RTE 16 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 3000 330.0 12.4 Pack Materials-Page 1 3.3 B0 (mm) K0 (mm) P1 (mm) 3.3 1.0 8.0 W Pin1 (mm) Quadrant 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Apr-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPL0202-10MRTER WQFN RTE 16 3000 370.0 355.0 55.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.