MAX5487_10 Datasheet, PDF (3/13 Pages) Maxim Integrated Products – Dual, 256-Tap, Nonvolatile, SPI-Interface, Linear-Taper Digital Potentiometers

Dual, 256-Tap, Nonvolatile, SPI-Interface,
Linear-Taper Digital Potentiometers
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
Input High Voltage (Note 5)
Input Low Voltage
Input Leakage Current
Input Capacitance
AC PERFORMANCE
V_DD = 3.6V to 5.25V
V_IH
V_DD = 2.7V to 3.6V
V_IL V_DD = 2.7V to 5.25V (Note 5)
I_IN
C_IN
2.4
0.7 x
V
V_DD
0.8
V
±1.0
µA
5.0
pF
Crosstalk
f_{H_} = 1kHz, L_ = GND, measurement at W_
(Note 6)
-90
dB
-3dB Bandwidth
MAX5487
BW
Wiper at midscale
C_{W_} = 10pF
MAX5488
MAX5489
350
90
kHz
45
Total Harmonic Distortion
THD
V_{H_} = 1V_RMS at 1kHz, L_ = GND,
measurement at W_
0.02
%
TIMING CHARACTERISTICS (Analog)
Wiper-Settling Time
t_S
Code 0 to 127
(Note 7)
TIMING CHARACTERISTICS (Digital, Figure 2, Note 8)
SCLK Frequency
MAX5487
MAX5488
MAX5489
0.5
0.75
µs
1.5
5
MHz
SCLK Clock Period
t_CP
SCLK Pulse-Width High
t_CH
SCLK Pulse-Width Low
CS Fall to SCLK Rise Setup
SCLK Rise to CS Rise Hold
t_CL
t_CSS
t_CSH
DIN to SCLK Setup
t_DS
DIN Hold after SCLK
SCLK Rise to CS Fall Delay
CS Rise to SCLK Rise Hold
CS Pulse-Width High
t_DH
t_CS0
t_CS1
t_CSW
Write NV Register Busy Time
t_BUSY
Read NV Register Access Time
t_ACC
Write Wiper Register to Output Delay
t_WO
NONVOLATILE MEMORY RELIABILITY
Data Retention
Endurance
T_A = +85°C
T_A = +25°C
T_A = +85°C
200
ns
80
ns
80
ns
80
ns
0
ns
50
ns
0
ns
20
ns
80
ns
200
ns
12
ms
1
µs
1
µs
50
200,000
50,000
Years
Stores
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