MAX5424ETA+T

19-3371; Rev 0; 7/04 KIT ATION EVALU E L B AVAILA 256-Tap, Nonvolatile, SPI-Interface, Digital Potentiometers Features ♦ Wiper Position Stored in Nonvolatile Memory (EEPROM) and Recalled Upon Power-Up or Interface Command ♦ 3mm x 3mm x 0.8mm TDFN Package ♦ 35ppm/°C End-to-End Resistance Temperature Coefficient ♦ 5ppm/°C Ratiometric Temperature Coefficient ♦ 50kΩ, 100kΩ, and 200kΩ Resistor Values ♦ 5MHz SPI-Compatible Serial Interface ♦ 500nA (typ) Static Supply Current ♦ Single-Supply Operation: +2.7V to +5.25V ♦ 256 Tap Positions ♦ ±0.5 LSB DNL in Voltage-Divider Mode ♦ ±0.5 LSB INL in Voltage-Divider Mode SPI is a trademark of Motorola, Inc. Applications Mechanical Potentiometer Replacement Low-Drift Programmable Gain Amplifiers Pin Configuration TOP VIEW Audio Volume Control Liquid-Crystal Display (LCD) Contrast Control Low-Drift Programmable Filters Functional Diagram H VDD 8-BIT SHIFT REGISTER 8 8-BIT LATCH 8 256256 POSITION DECODER SCLK SPI INTERFACE DIN 8-BIT NV MEMORY SCLK 2 DIN 3 CS 4 MAX5422 MAX5423 MAX5424 8 H 7 W 6 L 5 GND TDFN (3mm x 3mm) L POR 1 W GND CS VDD MAX5422 MAX5423 MAX5424 Ordering Information/Selector Guide PART TEMP RANGE END-TO-END RESISTANCE (kΩ) MAX5422ETA -40°C to +85°C 50 8 TDFN-EP* MAX5423ETA -40°C to +85°C 100 8 TDFN-EP* AII MAX5424ETA -40°C to +85°C 200 8 TDFN-EP* AIH PIN-PACKAGE TOP MARK AIJ *EP = Exposed pad. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 MAX5422/MAX5423/MAX5424 General Description The MAX5422/MAX5423/MAX5424 nonvolatile, lineartaper, digital potentiometers perform the function of a mechanical potentiometer, but replace the mechanics with a simple 3-wire SPI™-compatible digital interface. Each device performs the same function as a discrete potentiometer or variable resistor and has 256 tap points. The devices feature an internal, nonvolatile EEPROM used to store the wiper position for initialization during power-up. The 3-wire SPI-compatible serial interface allows communication at data rates up to 5MHz, minimizing board space and reducing interconnection complexity in many applications. The MAX5422/MAX5423/MAX5424 provide three nominal resistance values: 50kΩ (MAX5422), 100kΩ (MAX5423), or 200kΩ (MAX5424). The nominal resistor temperature coefficient is 35ppm/°C end-to-end and only 5ppm/°C ratiometric. This makes the devices ideal for applications requiring a low-temperature-coefficient variable resistor, such as low-drift, programmable gainamplifier circuit configurations. The MAX5422/MAX5423/MAX5424 are available in a 3mm x 3mm 8-pin TDFN package, and are specified over the extended -40°C to +85°C temperature range. MAX5422/MAX5423/MAX5424 256-Tap, Nonvolatile, SPI-Interface, Digital Potentiometers ABSOLUTE MAXIMUM RATINGS VDD to GND ...........................................................-0.3V to +6.0V All Other Pins to GND.................................-0.3V to (VDD + 0.3V) Maximum Continuous Current into H, L, and W MAX5422......................................................................±1.3mA MAX5423......................................................................±0.6mA MAX5424......................................................................±0.3mA Continuous Power Dissipation (TA = +70°C) 8-Pin TDFN (derate 24.4mW/°C above +70°C) .........1951mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-60°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Stresses beyond 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 beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (VDD = +2.7V to +5.25V, H = VDD, L = GND, TA = -40°C to +85°C. Typical values are at VDD = +5.0V, TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC PERFORMANCE (VOLTAGE-DIVIDER MODE) Resolution N 256 Taps Integral Nonlinearity INL (Note 1) ±0.5 LSB Differential Nonlinearity DNL (Note 1) ±0.5 LSB End-to-End Resistance Temperature Coefficient TCR Ratiometric Resistance Temperature Coefficient MAX5422 Full-Scale Error Zero-Scale Error 35 ppm/°C 5 ppm/°C -0.6 MAX5423 -0.3 MAX5424 -0.15 MAX5422 0.7 MAX5423 0.35 MAX5424 0.18 LSB LSB DC PERFORMANCE (VARIABLE-RESISTOR MODE) Integral Nonlinearity (Note 2) Differential Nonlinearity (Note 2) INL DNL VDD = 3V ±3.0 VDD = 5V ±1.5 VDD = 3V, MAX5422, -40°C ≤ TA ≤ +85°C, guaranteed monotonic -1.0 +2.0 VDD = 3V, MAX5422, 0°C ≤ TA ≤ +85°C, guaranteed monotonic -1.0 +1.2 VDD = 3V, MAX5423 ±1.0 VDD = 3V, MAX5424 ±1.0 VDD = 5V ±1.0 LSB LSB DC PERFORMANCE (RESISTOR CHARACTERISTICS) Wiper Resistance RW Wiper Capacitance CW VDD = 3V to 5.25V (Note 3) 2 675 10 MAX5422 End-to-End Resistance 325 37.5 50 62.5 MAX5423 75 100 125 MAX5424 150 200 250 _______________________________________________________________________________________ Ω pF kΩ 256-Tap, Nonvolatile, SPI-Interface, Digital Potentiometers (VDD = +2.7V to +5.25V, H = VDD, L = GND, TA = -40°C to +85°C. Typical values are at VDD = +5.0V, TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DIGITAL INPUTS (CS, DIN, SCLK) VDD = 3.4V to 5.25V Input High Voltage (Note 4) VIH Input Low Voltage VIL 2.4 V 0.7 x VDD VDD < 3.4V VDD = 2.7V to 5.25V (Note 4) Input Leakage Current IIN ±0.1 Input Capacitance CIN 5 0.8 V ±1 µA pF DYNAMIC CHARACTERISTICS Wiper -3dB Bandwidth (Note 5) MAX5422 100 MAX5423 50 MAX5424 25 kHz NONVOLATILE MEMORY RELIABILITY Data Retention Endurance TA = +85°C 50 TA = +25°C 200,000 TA = +85°C 50,000 Years Stores POWER SUPPLY Supply Voltage VDD 5.25 V Standby Current IDD Digital inputs = VDD or GND, TA = +25°C 2.70 0.5 1 µA Programming Current IPG During nonvolatile write to memory; digital inputs = VDD or GND (Note 6) 200 400 µA TIMING CHARACTERISTICS (VDD = +2.7V to +5.25V, H = VDD, L = GND, TA = -40°C to +85°C. Typical values are at VDD = +5.0V, TA = +25°C, unless otherwise noted. See Figure 1.) (Note 7) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS ANALOG SECTION MAX5422 Wiper Settling Time (Note 8) tS 400 MAX5423 600 MAX5424 1000 ns DIGITAL SECTION SCLK Frequency fSCLK 5 MHz SCLK Clock Period tCP 200 ns SCLK Pulse-Width High tCH 80 ns SCLK Pulse-Width Low tCL 80 ns CS Fall to SCLK Rise Setup tCSS 80 ns SCLK Rise to CS Rise Hold tCSH 0 ns tDS 50 ns DIN to SCLK Setup _______________________________________________________________________________________ 3 MAX5422/MAX5423/MAX5424 ELECTRICAL CHARACTERISTICS (continued) TIMING CHARACTERISTICS (continued) (VDD = +2.7V to +5.25V, H = VDD, L = GND, TA = -40°C to +85°C. Typical values are at VDD = +5.0V, TA = +25°C, unless otherwise noted. See Figure 1.) (Note 7) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DIN Hold after SCLK tDH 0 ns SCLK Rise to CS Fall Delay tCS0 20 ns CS Rise to SCLK Rise Hold tCS1 80 ns CS Pulse-Width High tCSW 200 Write NV Register Busy Time tBUSY ns 12 ms Note 1: The DNL and INL are measured with the potentiometer configured as a voltage-divider with H = VDD and L = GND. The wiper terminal is unloaded and measured with a high-input-impedance voltmeter. Note 2: The DNL and INL are measured with the potentiometer configured as a variable resistor. H is unconnected and L = GND. For the 5V condition, the wiper terminal is driven with a source current of 80µA for the 50kΩ configuration, 40µA for the 100kΩ configuration, and 20µA for the 200kΩ configuration. For the 3V condition, the wiper terminal is driven with a source current of 40µA for the 50kΩ configuration, 20µA for the 100kΩ, and 10µA for the 200kΩ configuration. Note 3: The wiper resistance is measured using the source currents given in Note 2. For operation to VDD = 2.7V, see Maximum Wiper Resistance vs. Temperature in the Typical Operating Characteristics. Note 4: The device draws higher supply current when the digital inputs are driven with voltages between (VDD - 0.5V) and (GND + 0.5V). See Supply Current vs. Digital Input Voltage in the Typical Operating Characteristics. Note 5: Wiper at midscale with a 10pF load (DC measurement). L = GND; an AC source is applied to H; and the W output is measured. A 3dB bandwidth occurs when the AC W/H value is 3dB lower than the DC W/H value. Note 6: The programming current operates only during power-up and NV writes. Note 7: Digital timing is guaranteed by design and characterization, and is not production tested. Note 8: Wiper-settling time is the worst-case 0% to 50% rise-time measured between consecutive wiper positions. H = VDD, L = GND, and the wiper terminal is unloaded and measured with a 10pF oscilloscope probe. Typical Operating Characteristics (VDD = 5.0V, TA = +25°C, unless otherwise noted.) 0.05 INL (LSB) 0.10 0.05 -0.05 0 -0.05 -0.10 -0.10 -0.15 -0.15 -0.20 -0.20 -0.25 -0.25 0 32 64 96 128 160 192 224 256 TAP POSITION MAX5422 toc03 0.15 0.10 0 VOLTAGE-DIVIDER MODE 0.20 WIPER RESISTANCE vs. TAP POSITION 700 VDD = 2.7V ISRC = 50μA 600 RESISTANCE (Ω) 0.15 MAX5422 toc01 VOLTAGE-DIVIDER MODE 0.20 INL vs. TAP POSITION 0.25 MAX5422 toc02 DNL vs. TAP POSITION 0.25 DNL (LSB) MAX5422/MAX5423/MAX5424 256-Tap, Nonvolatile, SPI-Interface, Digital Potentiometers 500 400 300 200 100 0 32 64 96 128 160 192 224 256 TAP POSITION 0 0 32 64 96 128 160 192 224 256 TAP POSITION 4 _______________________________________________________________________________________ 256-Tap, Nonvolatile, SPI-Interface, Digital Potentiometers STANDBY SUPPLY CURRENT vs. TEMPERATURE END-TO-END RESISTANCE % CHANGE vs. TEMPERATURE MAX5422 toc04 CL = 10pF TAP = 128 H = VDD 0.8 0.6 0.9 0.8 SUPPLY CURRENT (μA) W 1V/div 1.0 MAX5422toc05 VDD 1V/div END-TO-END RESISTANCE % CHANGE 1.0 0.4 0.2 0 -0.2 -0.4 0.7 0.6 0.4 -0.8 0.1 -1.0 0 -15 10 35 60 VDD = 4.0V 0.3 0.2 -40 VDD = 5.25V 0.5 -0.6 4μs/div MAX5422 toc06 WIPER TRANSIENT AT POWER-ON VDD = 3.0V VDD = 2.7V -15 -40 85 10 500 400 VDD = 3.0V 300 VDD = 4.5V 200 VDD = 5.25V 400 300 200 100 100 0 -40 -15 10 35 60 2 3 4 TEMPERATURE (°C) DIGITAL INPUT VOLTAGE (V) THD+N RESPONSE INL vs. TAP POSITION (MAX5422) MAX5422 toc09 100 1:1 RATIO 20Hz TO 20kHz BANDPASS 10 1 0 85 2.0 VARIABLE-RESISTOR MODE VDD = 2.7V ISRC = 50μA 1.5 1 5 MAX5422 toc10 0 1.0 INL (LSB) THD+N (%) 85 MAX5422 toc08 500 SUPPLY CURRENT (µA) VDD = 2.7V RESISTANCE (Ω) 600 MAX5422 toc07 600 60 SUPPLY CURRENT vs. DIGITAL INPUT VOLTAGE MAXIMUM WIPER RESISTANCE vs. TEMPERATURE 700 35 TEMPERATURE (°C) TEMPERATURE (°C) 0.1 0.01 0.5 0 0.001 -0.5 0.0001 10 100 1k FREQUENCY (Hz) 10k 100k -1.0 0 32 64 96 128 160 192 224 256 TAP POSITION _______________________________________________________________________________________ 5 MAX5422/MAX5423/MAX5424 Typical Operating Characteristics (continued) (VDD = 5.0V, TA = +25°C, unless otherwise noted.) Typical Operating Characteristics (continued) (VDD = 5.0V, TA = +25°C, unless otherwise noted.) INL vs. TAP POSITION (MAX5424) VARIABLE-RESISTOR MODE VDD = 2.7V ISRC = 10μA 1.5 VARIABLE-RESISTOR MODE 0.2 0.5 0 0 0 -0.1 -0.5 -0.5 -0.2 -1.0 -1.0 0 32 64 96 128 160 192 224 256 -0.3 0 32 64 TAP POSITION 96 128 160 192 224 256 0 32 64 TAP POSITION 0.2 DNL vs. TAP POSITION (MAX5424) 0.5 MAX5422 toc14 VARIABLE-RESISTOR MODE 128 160 192 224 256 TAP POSITION DNL vs. TAP POSITION (MAX5423) 0.3 96 VARIABLE-RESISTOR MODE 0.4 MAX5422 toc15 0.5 0.1 DNL (LSB) 1.0 INL (LSB) 1.0 0.3 MAX5422 toc12 VARIABLE-RESISTOR MODE VDD = 2.7V ISRC = 20μA 1.5 2.0 MAX5422 toc11 2.0 DNL vs. TAP POSITION (MAX5422) 0.3 DNL (LSB) DNL (LSB) 0.1 0 0.2 0.1 0 -0.1 -0.1 -0.2 -0.2 -0.3 -0.3 0 32 64 96 128 160 192 224 256 TAP POSITION 6 MAX5422 toc13 INL vs. TAP POSITION (MAX5423) INL (LSB) MAX5422/MAX5423/MAX5424 256-Tap, Nonvolatile, SPI-Interface, Digital Potentiometers 0 32 64 96 128 160 192 224 256 TAP POSITION _______________________________________________________________________________________ 256-Tap, Nonvolatile, SPI-Interface, Digital Potentiometers PIN NAME 1 VDD FUNCTION 2 SCLK Serial-Interface Clock Input 3 DIN Serial-Interface Data Input 4 CS Active-Low Digital-Input Chip Select 5 GND Power-Supply Input. Bypass VDD with a 0.1µF capacitor from VDD to GND. Ground 6 L Low Terminal. The voltage at L can be greater than or less than the voltage at H. Current can flow into or out of L. 7 W Wiper Terminal 8 H High Terminal. The voltage at H can be greater than or less than the voltage at L. Current can flow into or out of H. — EP Exposed Pad. The exposed pad is not internally connected. Connect to GND or leave floating. CS tCSW tCS0 tCSS tCL tCH tCP tCSH tCS1 SCLK tDS tDH DIN Figure 1. Digital Interface and Timing Diagram Detailed Description The MAX5422/MAX5423/MAX5424 contain a resistor array with 255 resistive elements. The MAX5422 has a total end-to-end resistance of 50kΩ; the MAX5423 has an end-to-end resistance of 100kΩ; and the MAX5424 has an end-to-end resistance of 200kΩ. The MAX5422/MAX5423/MAX5424 allow access to the high, low, and wiper terminals for a standard voltage-divider configuration. H, L, and W can be connected in any desired configuration as long as their voltages fall between GND and VDD. A simple, 3-wire, SPI serial interface moves the wiper among the 256 tap points. The nonvolatile memory stores the wiper position and recalls the stored wiper position upon power-up. The nonvolatile memory is guaranteed for 50 years for wiper data retention and up to 200,000 wiper store cycles. Analog Circuitry The MAX5422/MAX5423/MAX5424 consist of a resistor array with 255 resistive elements; 256 tap points are accessible to the wiper, W, along the resistor string between H and L. Select the wiper tap point by programming the potentiometer through the 3-wire (SPI) interface. Eight data bits, and a control byte program the wiper position. The H and L terminals of the MAX5422/MAX5423/MAX5424 are similar to the two end terminals of a mechanical potentiometer. The MAX5422/MAX5423/MAX5424 feature power-on reset circuitry that loads the wiper position from the nonvolatile memory at power-up. Digital Interface The MAX5422/MAX5423/MAX5424 use a 3-wire, SPIcompatible, serial data interface (Figure 1 and 2). This write-only interface contains three inputs: chip-select _______________________________________________________________________________________ 7 MAX5422/MAX5423/MAX5424 Pin Description MAX5422/MAX5423/MAX5424 256-Tap, Nonvolatile, SPI-Interface, Digital Potentiometers (CS), data clock (SCLK), and data in (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 and data (Figure 2a). The COPY commands (C1, C0 = 10, 11) can use either eight clock cycles to transfer the command bits (Figure 2b) or 16 clock cycles with 8 data bits that are disregarded by the device (Figure 2a). After loading data into the shift register, drive CS high to latch the data into the appropriate potentiometer control register and disable the serial interface. Keep CS low during the entire serial-data stream to avoid corruption of the data. The serial-data timing for the potentiometer is shown in Figures 1 and 2. Table 1. Register Map 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Bit name CLOCK EDGE — — C1 C0 — — — — D7 D6 D5 D4 D3 D2 D1 D0 Write wiper register 0 0 0 0 0 0 0 0 D7 D6 D5 D4 D3 D2 D1 D0 Write NV register 0 0 0 1 0 0 0 0 D7 D6 D5 D4 D3 D2 D1 D0 Copy wiper register to NV register 0 0 1 0 0 0 0 0 — — — — — — — — Copy NV register to wiper register 0 0 1 1 0 0 0 0 — — — — — — — — A) 16-BIT COMMAND/DATA WORD CS SCLK 1 2 DIN 3 4 C1 C0 3 4 C1 C0 5 6 7 8 9 10 11 12 13 14 15 16 D7 D6 D5 D4 D3 D2 D1 D0 B) 8-BIT COMMAND WORD CS SCLK 1 DIN 2 5 6 7 8 Figure 2. Digital-Interface Format 8 _______________________________________________________________________________________ 256-Tap, Nonvolatile, SPI-Interface, Digital Potentiometers Write NV Register The “write NV register” command (C1, C0 = 01) stores the position of the wipers to the NV registers for use at power-up. Alternatively, the “copy wiper register to NV register” command writes to the NV register. Writing to the NV registers, does not affect the position of the wipers. Copy Wiper Register to NV Register The “copy wiper register to NV register” command (C1, C0 = 10) stores the current position of the wiper to the NV register for use at power-up. Copy NV Register to Wiper Register The “copy NV register to wiper register” (C1, C0 = 11) restores the wiper position to the current value stored in the NV register. Standby Mode The MAX5422/MAX5423/MAX5424 feature a low-power standby mode. When the device is not being pro- grammed, it enters into standby mode and supply current drops to 0.5µA (typ). Nonvolatile Memory The internal EEPROM consists of a nonvolatile register that retains the last value stored prior to power-down. The nonvolatile register is programmed to midscale at the factory. The nonvolatile memory is guaranteed for 50 years for wiper data retention and up to 200,000 wiper write cycles. Power-Up Upon power-up, the MAX5422/MAX5423/MAX5424 load the data stored in the nonvolatile wiper register into the volatile wiper register, updating the wiper position with the data stored in the nonvolatile wiper register. This initialization period takes 10µs. Applications Information The MAX5422/MAX5423/MAX5424 are intended for circuits requiring digitally controlled adjustable resistance, such as LCD contrast control (where voltage biasing adjusts the display contrast), or programmable filters with adjustable gain and/or cutoff frequency. Positive LCD Bias Control Figures 3 and 4 show an application where a voltagedivider or variable resistor is used to make an adjustable, positive LCD-bias voltage. The op amp provides buffering and gain to the resistor-divider network made by the potentiometer (Figure 3) or to a fixed resistor and a variable resistor (see Figure 4). 5V 5V H 30V 30V W MAX5422 MAX5423 MAX5424 L VOUT H VOUT MAX5422 MAX5423 MAX5424 W L Figure 3. Positive LCD-Bias Control Using a Voltage-Divider Figure 4. Positive LCD-Bias Control Using a Variable Resistor _______________________________________________________________________________________ 9 MAX5422/MAX5423/MAX5424 Write Wiper Register Data written to this register (C1, C0 = 00) controls the wiper positions. The 8 data bits (D7 to D0) indicate the position of the wiper. For example, if DIN = 0000 0000, the wiper moves to the position closest to L. If DIN = 1111 1111, the wiper moves closest to H. This command writes data to the volatile random access memory (RAM), leaving the NV registers unchanged. When the device powers up, the data stored in the NV registers transfers to the volatile wiper register, moving the wiper to the stored position. MAX5422/MAX5423/MAX5424 256-Tap, Nonvolatile, SPI-Interface, Digital Potentiometers Programmable Filter Adjustable Voltage Reference Figure 5 shows the configuration for a 1st-order programmable filter. The gain of the filter is adjusted by R2, and the cutoff frequency is adjusted by R3. Use the following equations to calculate the DC gain (G) and the 3dB cutoff frequency (fC): Figure 6 shows the MAX5422/MAX5423/MAX5424 used as the feedback resistors in an adjustable voltage-reference application. Independently adjust the output voltage of the MAX6160 from 1.23V to VIN - 0.2V by changing the wiper position of the MAX5422/ MAX5423/MAX5424. R1 G = 1+ fC = Offset Voltage and Gain Adjustment R2 Connect the high and low terminals of one potentiometer of a MAX5422/MAX5423/MAX5424 between the NULL inputs of a MAX410 and the wiper to the op amp’s positive supply to nullify the offset voltage over the operating temperature range. Install another MAX5422/MAX5423/MAX5424 potentiometer in the feedback path to adjust the gain of the MAX410 (see Figure 7). 1 2π × R 3 × C C VIN 5V VOUT H MAX5422 R3 R1 W 7 2 L 1 H 8 6 MAX5422 MAX5423 MAX5424 MAX410 R2 W 3 4 -5V L Figure 7. Offset Voltage Adjustment Circuit Figure 5. Programmable Filter Chip Information +5V TRANSISTOR COUNT: 10,191 VIN V0 REF OUT PROCESS: BiCMOS H MAX6160 ADJ MAX5422 MAX5423 MAX5424 GND W L V0 = 1.23V 50kΩ FOR THE MAX5422 R2(kΩ) 100kΩ V0 = 1.23V FOR THE MAX5423 R2(kΩ) 200kΩ V0 = 1.23V FOR THE MAX5424 R2(kΩ) Figure 6. Adjustable Voltage Reference 10 ______________________________________________________________________________________ 256-Tap, Nonvolatile, SPI-Interface, Digital Potentiometers 6, 8, &10L, DFN THIN.EPS COMMON DIMENSIONS PACKAGE VARIATIONS SYMBOL MIN. MAX. PKG. CODE N D2 E2 e JEDEC SPEC b [(N/2)-1] x e A 0.70 0.80 T633-2 6 1.50±0.10 2.30±0.10 0.95 BSC MO229 / WEEA 0.40±0.05 1.90 REF D 2.90 3.10 T833-2 8 1.50±0.10 2.30±0.10 0.65 BSC MO229 / WEEC 0.30±0.05 1.95 REF E 2.90 3.10 T833-3 8 1.50±0.10 2.30±0.10 0.65 BSC MO229 / WEEC 0.30±0.05 1.95 REF A1 0.00 0.05 T1033-1 10 1.50±0.10 2.30±0.10 0.50 BSC MO229 / WEED-3 0.25±0.05 2.00 REF L 0.20 0.40 T1033-2 10 1.50±0.10 2.30±0.10 0.50 BSC MO229 / WEED-3 0.25±0.05 2.00 REF k 0.25 MIN. T1433-1 14 1.70±0.10 2.30±0.10 0.40 BSC ---- 0.20±0.05 2.40 REF A2 0.20 REF. T1433-2 14 1.70±0.10 2.30±0.10 0.40 BSC ---- 0.20±0.05 2.40 REF Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 11 © 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. MAX5422/MAX5423/MAX5424 Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.)