Datasheet DS4305 (Analog Devices) - 3

Electronically Programmable Voltage Reference DS4305 ELECTRICAL CHARACTERISTICS (continued)
(VCC = +4.0V to +5.5V, TA = -40°C to +125°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
VOUT PSRR VOUTPSRR f = 200kHz 28 dB VOUT Self-Adjust Settling Time tST (Note 4) 7 10 ms/V EEPROM Programming Time tW (Note 5) 9 12 ms Turn-On Time tON VIN and ADJ = open circuit (Note 6) 10 µs ADJ Toggle Low Time tADJ 100 ns VOUT Factory-Trimmed Value VOUT FT +25°C, VCC = 5.8V (Note 7) 1200 mV
NONVOLATILE MEMORY CHARACTERISTICS
(VCC = +4.0V to 5.5V, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Programming Cycles +70°C (Note 8) 50,000 Cycles
Note 1:
All voltages referenced to ground.
Note 2:
Tracking accuracy is defined as VOUT - VIN after the DS4305 has completed self-adjustment.
Note 3:
Quantization refers to the size of the voltage steps used to track the input signal.
Note 4:
Settling time is the maximum amount of time VOUT requires to self-adjust. The settling time is determined by the following formula: ∆VOUT x tST.
Note 5:
EEPROM programming time is the hold time required after the DS4305 has completed self-adjustment before VIN or VCC can be removed or before ADJ can be toggled low once again.
Note 6:
Turn-on time is defined as the time required for VOUT to reach its specified accuracy after the required supply voltage is applied.
Note 7:
VOUT not loaded.
Note 8:
Guaranteed by design.
Typical Operating Characteristics
(VCC = 5.0V, TA = +25°C, unless otherwise noted.)
ACTIVE SUPPLY CURRENT ACTIVE SUPPLY CURRENT ACTIVE SUPPLY CURRENT vs. TEMPERATURE (VOUT = 0.3V) vs. TEMPERATURE (VOUT = 3.5V) vs. SUPPLY VOLTAGE (VOUT = 0.3V)
1.6 1.8 1.6 1.7 DS4305 toc01 1.5 DS4305 toc02 DS4305 toc03 1.5 TA = +125°C VCC = 5.0V 1.6 1.4 V T CC = 5.5V V 1.4 A = +85°C CC = 5.5V 1.5 1.3 VCC = 5.0V 1.3 1.4 1.2 V T CC = 4.0V VCC = 4.0V 1.2 A = +25°C SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 1.3 SUPPLY CURRENT (mA) T 1.1 A = -40°C 1.2 1.1 IL = 0mA ADJ = VCC IL = 0mA ADJ = VCC IL = 0mA 1.0 1.1 1.0 -40 -10 20 50 80 110 -40 -10 20 50 80 110 4.0 4.3 4.6 4.9 5.2 5.5 TEMPERATURE (°C) TEMPERATURE (°C) SUPPLY VOLTAGE (V)
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