MAX5474EKA+T Maxim Integrated Products, MAX5474EKA+T Datasheet - Page 3

• Manufacturer Part Number: MAX5474EKA+T
• Description: IC POT DGTL 32-TAP NV SOT23-8
• Manufacturer: Maxim Integrated Products

Specifications of MAX5474EKA+T

• Taps: 32
• Resistance (ohms): 50K
• Number Of Circuits: 1
• Temperature Coefficient: 35 ppm/°C Typical
• Memory Type: Non-Volatile
• Interface: Up/Down
• Voltage - Supply: 2.7 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-8
• Resistance In Ohms: 50K
• Number Of Pots: Single
• Taps Per Pot: 32
• Resistance: 50 KOhms
• Wiper Memory: Non Volatile
• Digital Interface: Serial (3-Wire)
• Operating Supply Voltage: 5 V
• Supply Current: 0.4 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Description/function: 32-Step Nonvolatile Up/Down 50Kohm Potentiometer
• Mounting Style: SMD/SMT
• Supply Voltage (max): 5.25 V
• Supply Voltage (min): 2.7 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MAX5474EKA+T

ELECTRICAL CHARACTERISTICS (continued)
(V
= +25°C, unless otherwise noted.) (Note 1)
Note 1: All devices are production tested at T
Note 2: The DNL and INL are measured with the potentiometer configured as a variable resistor. For the 3-terminal potentiometers
Note 3: The DNL and INL are measured with the potentiometer configured as a voltage-divider with H = V
Note 4: The wiper resistance is the worst value measured by injecting the currents given in Note 2 into W with L = GND.
Note 5: The device draws higher supply current when digital inputs are driven with voltages between 0.3V x V
Note 6: Wiper at midscale with a 10pF load.
Note 7: Digital timing is guaranteed by design and characterization, and is not production tested.
Note 8: Wiper settling time is the worst-case 0% to 50% rise time measured between consecutive wiper positions. H = V
Note 9: Digital inputs CS, U/D, and INC are connected to GND or V
TIMING CHARACTERISTICS (Figure 1, Note 7)
CS to INC Setup
INC High to U/D Change
U/D to INC Setup
INC Low Period
INC High Period
INC Cycle Time
INC Inactive to CS Inactive
INC Active to CS Inactive
CS Deselect Time (Store)
Wiper Settling Time
Power-Up to Wiper Stable
Wiper Store Cycle
NONVOLATILE MEMORY RELIABILITY
Data Retention
Endurance
POWER SUPPLY
Supply Voltage
Supply Current
Static Supply Current
DD
= +2.7V to +5.25V, V
(MAX5474/MAX5475), H is unconnected and L = GND. At V
50kΩ configuration, and 40µA for the 100kΩ configuration. At V
of 40µA for the 50kΩ configuration, and 20µA for the 100kΩ configuration.
(MAX5474/MAX5475 only). The wiper terminal is unloaded.
R
Drive the digital inputs as close as possible to V
Current vs. Digital Input Voltage graph.)
GND, and the wiper terminal is unloaded and measured with a 10pF oscilloscope probe (see the Typical Operating
Characteristics for the Tap-to-Tap Switching Transient).
Supply Current vs. Temperature graph.
W
PARAMETER
= (V
W
- V
_______________________________________________________________________________________
32-Tap, Nonvolatile, Linear-Taper Digital
H
) / I
W
H
.
= V
DD
, V
SYMBOL
L
= GND, T
t
t
t
V
WSC
I
CYC
CPH
t
I
t
t
t
t
t
t
t
t
DD
PU
SD
IW
CI
ID
DI
IH
IC
IK
DD
IL
A
= +25°C and are guaranteed by design and characterization for -40°C < T
A
(Note 8)
T
T
T
Write to memory
T
A
A
A
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
= +85°C
= +25°C
= +85°C
= +25°C (Note 9)
DD
or GND. (See the Typical Operating Characteristics for the Supply
Potentiometers in SOT23
CONDITIONS
DD
DD
. See the Typical Operating Characteristics for the Static
= 5.25V, W is driven with a source current of 80µA for the
DD
= 2.7V, the wiper terminal is driven with a source current
2.70
MIN
100
100
100
100
100
50
50
50
12
0
200,000
50,000
DD
TYP
0.35
50
1
1
and L = GND
DD
and 0.7 x V
MAX
5.25
400
DD
1
A
DD
= +5.0V, T
< +85°C.
, L =
DD
UNITS
Store
Year
ms
µA
µA
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
µs
V
.
3
A