Datasheet DS1801 (Analog Devices) - 9

DS1801
AC ELECTRICAL CHARACTERISTICS
(-40°C to +85°C; VCC=2.7V to 5.5V)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
CLK Frequency fCLK DC 10 MHz 7 Width of CLK Pulse tCH 50 ns 7 Data Setup Time tDC 30 ns 7 Data Hold Time tCDH 10 ns 7 Propagation Delay Time tPLH 50 ns 7 Low to High Level Clock to Output Propagation Delay Time tPLH 50 ns 7 Low to High Level RST High to Clock Input High tCC 50 ns 7 RST Low to Clock Input High tHLT 50 ns 7 CLK Rise Time tCR 60 ns 7 RST Inactive tRLT 200 ns 7
NOTES:
1. All voltages are referenced to ground. 2. Valid for VCC = 2V only. 3. Capacitance values apply at 25°C. 4. Inter-channel matching is used to determine the relative voltage difference in dB between the same tap position on each potentiometer. The DS1801 is specified for ±0.5 dB inter-channel matching. 5. Tap-to-tap tolerance is used to determine the change in voltage between successive tap positions. The DS1801 is specified for ±0.25 dB tap-to-tap tolerance. 6. Typical values are for TA =25°C and nominal supply voltage. 7. See Figure 3. 8. Absolute tolerance is used to determine measured wiper voltage vs. expected wiper voltage as determined by wiper position. The DS1801 is bounded by a ±1 dB absolute tolerance. 9. Maximum current specifications are based on clock rate and active zero-crossing detection. See Figure 5 for clock rate vs. current specification. 10. See Figure 7. 11. Standby current levels apply when all inputs are driven to appropriate supply levels. 12. These parameters are characterized and not 100% tested. 13. Valid at 25° C only. 9 of 10