DS1667-010 DALLAS [Dallas Semiconductor], DS1667-010 Datasheet
DS1667-010
Related parts for DS1667-010
DS1667-010 Summary of contents
Page 1
... In addition, the resistors can be stacked such that a single potentiometer of 512 sections results. When two separate potentiometers are used, the resolution of the DS1667 is equal to the resistance value divided by 256. When the potentiometers are stacked end to end, the resistance value is doubled while the resolution remains the ...
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... OPERATION - DIGITAL RESISTOR SECTION The DS1667 contains two potentiometers, each of which has its wiper set by a value contained in an 8-bit register (see Figure 1). Each potentiometer consists of 256 resistors of equal value with tap points between each resistor and at the low end ...
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... As bits are entered into the shift register, the previous value is shifted out bit by bit on the cascade serial port pin (COUT). By connecting the COUT pin to the DQ pin of a second DS1667, multiple devices can be daisy chained together as shown in Figure 3. ...
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... WRITING DATA Figure 2 CASCADING MULTIPLE DEVICES Figure 3 READING DATA Figure DS1667 ...
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... An important specification for the DS1667 is linearity, that is, for a given digital input, how close the analog output is to that which is expected. The test circuit used to measure the linearity of the DS1667 is shown in Figure 5. Note that to get an accurate output voltage it is necessary to assure that the output current order to negate the effects of wiper impedance RW, which is typically 400 ohms ...
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... LINEARITY MEASUREMENT CONFIGURATION Figure 5 DS1667 ABSOLUTE AND RELATIVE LINEARITY Figure 6 Absolute and Relative Linearity (Normalized to 1 LSB DS1667 ...
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... TIMING DIAGRAM: RESISTOR SECTION Figure DS1667 ...
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... V +0 +0.8 V GND -5.0V ± 10%) B TYP MAX UNITS µA 400 1000 ohms µ +20 % -120 dB Hz 1.0 LSB 0.5 LSB 750 ppm C (T TYP MAX UNITS DS1667 NOTES NOTES 9 = 25°C) A NOTES ...
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... R - +1.5V CCM B 106 96 V 4.6 4.7 SWGH V -4.7 SWGL V 4.5 4.6 SWGH V -4.6 SWGL O,SOURCE O,SINK DS1667 = 5V ± 10%) CC MAX UNITS NOTES 10 MHz -5.0V ± 10%) B MAX UNITS NOTES 10 mV uV/° = =600k ...
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... GBP PM GM AAI IRVF IRV1 HD = +5. (0°C to 70° 5.0V ± 10%) CC TYP MAX UNITS 2 V/µs 2.5 MHz 75 deg 20 dB 130 dB 100 nV/ Hz 0.0002 pA -5.0V and analog ground = 0V. In general DS1667 NOTES F=1 kHz F=1 kHz F=10 kHz AV=-10 RL= ...