MAX5451 MAXIM [Maxim Integrated Products], MAX5451 Datasheet - Page 3

• Manufacturer Part Number: MAX5451
• Description: Dual, 256-Tap, Up/Down Interface, Digital Potentiometers
• Manufacturer: MAXIM [Maxim Integrated Products]

ELECTRICAL CHARACTERISTICS (continued)
(V
unless otherwise noted.)
Note 1: Linearity is defined in terms of the H_ to L_ code-dependent resistance.
Note 2: The DNL and INL are measured with the potentiometer configured as a voltage divider with H_ = V
Note 3: The DNL and INL are measured with the potentiometer configured as a variable resistor. For the 3-terminal potentiometers
Note 4: The wiper resistance is the worst value measured by injecting the currents given in Note 3 into W_ with L_ = GND. R
Note 5: Device draws higher supply current when digital inputs are driven with voltages between 0.3 x V
Note 6: Wiper-Settling Time is the worst case 0% to 50% rise-time measured between consecutive wiper positions. H_ = V
Note 7: Digital timing is guaranteed by design.
DIGITAL INPUTS (Note 5)
Input High Voltage
Input Low Voltage
Input Leakage Current
Input Capacitance
TIMING CHARACTERISTICS (Analog)
Wiper-Settling Time
(Note 6)
TIMING CHARACTERISTICS (Digital, Note 7, Figure 1)
Maximum INC Frequency
CS to INC Setup Time
CS to INC Hold Time
INC Low Period
INC High Period
U/D to INC Setup
U/D to INC Hold
POWER SUPPLIES
Supply Voltage
Supply Current
DD
= +2.7V to +5.5V, V
wiper terminal is unloaded and measured with an ideal voltmeter.
(MAX5451/MAX5453/MAX5455), H_ is unconnected and L_ = GND. For the 2-terminal potentiometers
(MAX5450/MAX5452/MAX5454), L_ = GND. At V
10kΩ configuration, 80µA for the 50kΩ configuration, and 40µA for the 100kΩ configuration. At V
200µA/40µA/20µA for 10kΩ/50kΩ/100kΩ configuration, respectively.
(V
Supply Current vs. Digital Input Voltage in the Typical Operating Characteristics.)
GND, and the wiper terminal is unloaded and measured with a 10pF oscilloscope probe (see Tap-To-Tap Switching
Transient in the Typical Operating Characteristics).
W
PARAMETER
_ - V
H
_) / I
_______________________________________________________________________________________
W
_.
H
= V
DD
, V
L
= 0; T
SYM B O L
Dual, 256-Tap, Up/Down Interface,
f
V
V
MAX
I
V
t
t
t
t
t
t
t
DD
IW
CI
IC
IH
DI
ID
DD
IL
IH
IL
A
= T
MIN
MAX5451
MAX5453
MAX5455
CS = INC = U/D = V
or GND
to T
DD
MAX
= +5V, the wiper terminal is driven with a source current of 400µA for the
, unless otherwise noted. Typical values are at V
CONDITIONS
Digital Potentiometers
DD
V
V
DD
D D
= + 2.7V
= +5V
0.7 x V
MIN
2.7
25
25
25
50
7
0
0
DD
DD
DD
DD
TYP
= +3V,
and 0.7 x V
0.5
1.2
1.8
0.7
0.1
5
DD
and L_ = GND. The
= +5V, T
0.3 x V
MAX
±1.0
5.5
2
DD
DD
A
. (See
DD
= +25°C,
W
, L_ =
UNITS
_ =
MHz
µA
µA
pF
µs
ns
ns
ns
ns
ns
ns
V
V
V
3