Rainbow Electronics MAX5489 - Manual (Page 3)

MAX5487/MAX5488/MAX5489
Dual, 256-Tap, Nonvolatile, SPI-Interface,
Linear-Taper Digital Potentiometers
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DC ELECTRICAL CHARACTERISTICS (continued)
(V DD = +2.7V to +5.25V, V H = V DD , V L = GND, T A = -40 °C to +85°C, unless otherwise noted. Typical values are at V
DD = +5.0V,
T A = +25 °C, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DIGITAL INPUTS
V DD = 3.6V to 5.25V 2.4
Input High Voltage (Note 5) V IH
V DD = 2.7V to 3.6V
0.7 x
V DD
V
Input Low Voltage V IL V DD = 2.7V to 5.25V (Note 5) 0.8 V
Input Leakage Current I IN ±1.0 µA
Input Capacitance C IN 5.0 pF
AC PERFORMANCE
Crosstalk
f H_ = 1kHz, L_ = GND, measurement at W_
(Note 6)
-90 dB
MAX5488 90
-3dB Bandwidth BW
Wiper at midscale
C
W_ = 10pF MAX5489 45
kHz
Total Harmonic Distortion THD
V H_ = 1V RMS at 1kHz, L_ = GND,
measurement at W_
0.02 %
TIMING CHARACTERISTICS (Analog)
MAX5488 0.75
Wiper-Settling Time t S
Code 0 to 127
(Note 7)
MAX5489 1.5
µs
TIMING CHARACTERISTICS (Digital, Figure 2, Note 8)
SCLK Frequency 5 MHz
SCLK Clock Period t
CP
200 ns
SCLK Pulse-Width High t CH 80 ns
SCLK Pulse-Width Low t CL 80 ns
CS Fall to SCLK Rise Setup t CSS 80 ns
SCLK Rise to CS Rise Hold t CSH 0 ns
DIN to SCLK Setup t DS 50 ns
DIN Hold after SCLK t DH 0 ns
SCLK Rise to CS Fall Delay t CS0 20 ns
CS Rise to SCLK Rise Hold t
CS1
80 ns
CS Pulse-Width High t CSW 200 ns
Write NV Register Busy Time t BUSY 12 ms
Read NV Register Access Time t ACC 1 µs
W r i te W i p er Reg i ster to O utp ut D el ay t WO 1 µs
NONVOLATILE MEMORY RELIABILITY
T A = +85°C 50
Data Retention
Mil-Std-883 test
method 1008
T A = +125°C 10
Years
T A = +85°C 200,000
Endurance
Mil-Std-883 test
method 1033
T A = +125°C 50,000
Stores