AD5292 Analog Devices, AD5292 Datasheet
AD5292
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AD5292 Summary of contents
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... During 20-TP activation, a permanent blow fuse command freezes the wiper position (analogous to placing epoxy on a mechanical trimmer). The AD5291/AD5292 are available in a compact 14-lead TSSOP package. The part is guaranteed to operate over the extended industrial temperature range of −40°C to +105°C. ...
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... Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Electrical Characteristics—AD5291 .......................................... 3 Resistor Performance Mode Code Range—AD5291 ............... 4 Electrical Characteristics—AD5292 .......................................... 5 Resistor Performance Mode Code Range—AD5292 ............... 6 Interface Timing Specifications .................................................. 7 Timing Diagrams .......................................................................... 8 Absolute Maximum Ratings ............................................................ 9 Thermal Resistance ...................................................................... 9 ESD Caution .................................................................................. 9 Pin Configuration and Function Descriptions ........................... 10 Typical Performance Characteristics ...
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... ±1 2 − 0.4 LOGIC LOGIC LOGIC − ±9 0.1 −2 −0.1 2 GND GND 25 = GND 25 = GND 8 0.025 AD5291/AD5292 , Max Unit Bits +1 LSB +1 LSB + ppm/°C 100 Ω Bits +1 LSB +0.5 LSB ppm/°C 0 LSB 2 LSB ...
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... AD5291/AD5292 www.DataSheet4U.com Parameter 4, 10 DYNAMIC CHARACTERISTICS Bandwidth Total Harmonic Distortion V Settling Time W Resistor Noise Density 1 Typical values represent average readings at 25° Resistor position nonlinearity error. R-INL is the deviation from an ideal value measured between the R Code 0xFD and R at Code 0x00. R-DNL measures the relative step change from ideal between successive tap positions. The specification is guaranteed in resistor ...
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... ELECTRICAL CHARACTERISTICS—AD5292 −40°C < T < +105°C, unless otherwise noted. A Table 3. Parameter DC CHARACTERISTICS—RHEOSTAT MODE Resolution 2 Resistor Differential Nonlinearity 2 Resistor Integral Nonlinearity Nominal Resistor Tolerance (R-Perf Mode ...
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... Different from operating current; supply current for fuse read lasts approximately 550 μ calculated from (I × × DISS All dynamic characteristics use RESISTOR PERFORMANCE MODE CODE RANGE—AD5292 Table 4. Resistor |V − Tolerance per Code R-Tolerance From 0x15E From 0x00 to 0x3FF ...
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... Power-on OTP restore time = 1 ns/V (10 and timed from a voltage level DB9 (MSB CONTROL BITS Figure 2. AD5291/AD5292 Shift Register Content Rev Page AD5291/AD5292 unless otherwise noted. MIN MAX + V )/ DB0 (LSB ...
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... AD5291/AD5292 www.DataSheet4U.com TIMING DIAGRAMS SCLK SYNC DIN SDO t 10 RDY RESET SCLK SYNC DIN X X SDO RDY Figure 3. Write Timing Diagram Figure 4. Read Timing Diagram Rev Page ...
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... ESD CAUTION 260°C 20 sec to 40 sec (T max − T )/θ Rev Page AD5291/AD5292 is defined by JEDEC specification JESD-51 and the value is JA θ JEDEC 2S2P test board, still air (0 m/sec to 1 m/sec air flow). θ Unit JC 20 ° ...
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... GND Ground Pin, Logic Ground Reference. 10 DIN Serial Data Input. The AD5291/AD5292 have a 16-bit shift register. Data is clocked into the register on the falling edge of the serial clock input. 11 SCLK Serial Clock Input. Data is clocked into the shift register on the falling edge of the serial clock input. Data can be transferred at rates MHz ...
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... CODE (Decimal) Figure 10. R-INL in Normal Mode vs. Code vs. Temperature (AD5292) 0.15 0.10 0.05 0 –0.05 –0.10 –0.15 +25°C –40°C –0.20 0 128 256 384 512 640 CODE (Decimal) Figure 11. R-DNL in Normal Mode vs. Code vs. Temperature (AD5292) +105° ...
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... Rev Page 0.6 0.5 0.4 0.3 0.2 0.1 0 –0.1 +25°C –40°C –0.2 0 128 256 384 512 640 CODE (Decimal) Figure 15. DNL in R-Perf Mode vs. Code vs. Temperature (AD5292) 0.25 +25°C –40°C 0.20 0.15 0.10 0.05 0 –0.05 –0.10 –0.15 –0.20 –0. 128 160 CODE (Decimal) Figure 16. INL in R-Perf Mode vs. Code vs. Temperature (AD5291) 0.14 +25° ...
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... CODE (Decimal) Figure 18. INL in Normal Mode vs. Code vs. Temperature (AD5292) 0.10 0.05 0 –0.05 –0.10 –0.15 –0.20 0 128 256 384 512 CODE (Decimal) Figure 19. DNL in Normal Mode vs. Code vs. Temperature (AD5292) 0.20 –40°C 0.15 0.10 0.05 0 –0.05 –0.10 –0.15 –0.20 ...
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... FREQUENCY (Hz) Figure 25. 20 kΩ Gain vs. Frequency vs. Code (AD5292 ±15V CODE = HALF SCALE ...
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... Digital Input Voltage , CODE: HALF-SCALE, , CODE: HALF-SCALE 30V/ LOGIC 0.4 0.6 0.8 1.0 1.2 Rev Page AD5291/AD5292 1.2 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 TIME (µs) Figure 33. Maximum Transition Glitch –1 TIME (ms) Figure 34. V Waveform While Reading Fuse or Calibration EXT_CAP ...
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... AD5291/AD5292 www.DataSheet4U.com 75.0 62.5 50.0 37.5 25.0 12.5 0 –40 –30 –20 – 100 TEMPERATURE (°C) Figure 36. Code Range > 1% R-Tolerance Error vs. Temperature 300 ±15V DD SS 250 200 150 100 50 0 Rev Page ...
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... Figure 39. Wiper Resistance 1LSB = V+/ 0. 0.1V – DD Rev Page AD5291/AD5292 ± 10 PSRR (dB log ΔV B PSS (%/%) = V ΔV MS Figure 40. Power Supply Sensitivity (PSS, PSRR) +15V DUT OP42 B ...
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... DSPs. The parts allow writing of data via the serial interface to every register. SHIFT REGISTER The AD5291/AD5292 shift register is 16 bits wide (see Figure 2). The 16-bit input word consists of two unused bits (set to 0), followed by four control bits, and 10 RDAC data bits. For the Table 9 ...
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... RDAC register can be saved into a 20-TP memory register (see Table 10). Thereafter, the wiper position is always set at that position for any future on-off-on power supply sequence. The AD5291/AD5292 have an array of 20 one-time programmable (OTP) memory registers. When the desired word is programmed to 20-TP memory, the device automatically verifies that the program command was successful ...
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... AD5291/AD5292 www.DataSheet4U.com BASIC OPERATION The basic mode of setting the variable resistor wiper position (programming the RDAC register) is accomplished by loading the shift register with Command 1 (see Table 9) and the desired wiper position data. When the desired wiper position is deter- mined, the user can load the shift register with Command 3 (see Table 9), which stores the wiper position data in the 20-TP memory register ...
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... kΩ ± 100 Ω. See Table 2 WB (AD5291) or Table 4 (AD5292) to check which codes achieve ±1% resistor tolerance. The resistor performance mode is activated by programming Bit C2 of the control register (see Table 11 and Table 12). The typical settling time is shown in Figure 31 ...
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... using the AD5291/AD5292 in voltage divider mode as in Figure 46, then the ±1% resistor tolerance calibration feature reduces the error when matching with discrete resistors. However recommended to disable the internal ±1% resistor tolerance calibration feature by programming Bit C2 of the control ...
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... Specifications section. Power-Up Sequence To ensure that the AD5291/AD5292 power up correctly μF capacitor must be connected to the EXT_CAP pin. Because there are diodes to limit the voltage compliance at Terminal A, Terminal B, and Terminal W (see Figure 48 important to ...
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... IN OUT L maximum of 100 mA with supply. HIGH ACCURACY DAC It is possible to configure the AD5292 as a high accuracy DAC by optimizing the resolution of the device over a specific reduced voltage range. This is achieved by placing external resistors on either side of the RDAC, as shown in Figure 51. ...
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... AUDIO VOLUME CONTROL The excellent THD performance and high voltage capability make the AD5291/AD5292 ideal for a digital volume control as an audio attenuator or gain amplifier. A typical problem in these systems is that a large step change in the volume level at any arbitrary time can lead to an abrupt discontinuity of the audio signal causing an audible zipper noise ...
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... PIN 1 1.05 1.00 0.80 0.15 0.05 COPLANARITY 0.10 ORDERING GUIDE Model R (kΩ) AB AD5291BRUZ- AD5291BRUZ-20-RL7 20 AD5292BRUZ- AD5292BRUZ-20-RL7 RoHS Compliant Part. 5.10 5.00 4. 6.40 BSC 1 7 0.65 BSC 1.20 0.20 MAX 0.09 SEATING 0.30 PLANE 0.19 COMPLIANT TO JEDEC STANDARDS MO-153-AB-1 Figure 55. 14-Lead Thin Shrink Small Outline Package [TSSOP] (RU-14) Dimensions shown in millimeters ...
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... NOTES Rev Page AD5291/AD5292 ...
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... AD5291/AD5292 www.DataSheet4U.com NOTES ©2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07674-0-5/09(0) Rev Page ...