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CAT524 Datasheet(PDF) 3 Page - Catalyst Semiconductor |
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CAT524 Datasheet(HTML) 3 Page - Catalyst Semiconductor |
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3 / 12 page  CAT524 3 Doc. No. 25076-00 Rev. 4/01 AC ELECTRICAL CHARACTERISTICS: VDD = +2.7V to +5.5V, VREFH = +VDD, VREFL = 0V, unless otherwise specified Symbol Parameter Conditions Min Typ Max Units Digital tCSMIN Minimum CS Low Time 150 —— ns tCSS CS Setup Time 100 —— ns tCSH CS Hold Time 0 —— ns tDIS DI Setup Time 50 —— ns tDIH DI Hold Time 50 —— ns tDO1 Output Delay to 1 —— 150 ns tDO0 Output Delay to 0 —— 150 ns tHZ Output Delay to High-Z — 400 — ns tBusy Erase/Write Cycle Time — 45 ms tLZ Output Delay to Low-Z — 400 — ns tPROG Erase/Write Pulse Width 700 —— ns tPS PROG Setup Time 150 —— ns tCLKH Minimum CLK High Time 500 —— ns tCLKL Minimum CLK Low Time 300 —— ns fC Clock Frequency DC — 1 MHz Analog tDS DAC Settling Time to 1/2 LSB CLOAD = 10 pF, VDD = +5V — 310 µs CLOAD = 10 pF, VDD = +3V — 610 µs Pin Capacitance CIN Input Capacitance VIN = 0V, f = 1 MHz(2) — 8 — pF COUT Output Capacitance VOUT = 0V, f = 1 MHz(2) — 6 — pF NOTES: 1. All timing measurements are defined at the point of signal crossing VDD / 2. 2. These parameters are periodically sampled and are not 100% tested. Analog Output Temperature Power Supply DC ELECTRICAL CHARACTERISTICS (Cont.): VDD = +2.7V to +5.5V , VREFH = +VDD, VREFL = 0V, unless otherwise specified Symbol Parameter Conditions Min Typ Max Units FSO Full-Scale Output Voltage VR = VREFH–VREFL 0.99 VR 0.995 VR — V ZSO Zero-Scale Output Voltage VR = VREFH–VREFL — 0.005 VR 0.01 VR V IL DAC Output Load Current —— 1 µA ROUT DAC Output Impedance VDD = +5V —— 100 k Ω VDD = +3V —— 150 k Ω PSSR Power Supply Rejection ILOAD = 250 nA —— 1 LSB / V TCO VOUT Temperature Coefficient VREFH = +5V, VREFL = 0V —— 200 µV/ °C VDD = +5V, ILOAD = 250nA TCREF Temperature Coefficient of VREFH to VREFL — 700 — ppm / °C VREF Resistance IDD1 Supply Current (Read) Normal Operating — 400 600 µA IDD2 Supply Current (Write) VDD=5V — 1600 2500 µA VDD=3V — 1000 1600 µA VDD Operating Voltage Range 2.7 — 5.5 V CL = 100 pF, see note 1 |
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