Datasheet
MAX5494–MAX5499
10-Bit, Dual, Nonvolatile, Linear-Taper
Digital Potentiometers
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Pin Descriptions
PIN
MAX5494/
MAX5495
MAX5496/
MAX5497
MAX5498/
MAX5499
NAME FUNCTION
111CS
Active-Low Chip-Select Input. Drive CS low to enable the serial interface. Drive
CS high to disable the serial interface and put the device in standby mode.
2 2 2 W2 Wiper Terminal 2
3 3 3 L2 Low Terminal 2
4 — — H2 High Terminal 2
555V
DD
Positive Power-Supply Input. 2.7V ≤ V
DD
≤ 5.25V. Bypass with a 0.1µF
capacitor from V
DD
to GND as close to the device as possible
6, 7,14,15 6, 7,14,15 6, 7,14,15 N.C. No Connection. Not internally connected.
888V
SS
Negative Power-Supply Input.
Single-supply operation: V
SS
= GND = 0.
Dual-supply operation: -2.5V ≤ V
SS
≤ -0.2V (V
SS
can vary as long as
(V
DD
- V
SS
)
≤ 5.25V).
Bypass with a 0.1µF capacitor from V
SS
to GND as close to the device
as possible.
9 — 9 H1 High Terminal 1
10 10 10 L1 Low Terminal 1
11 11 11 W1 Wiper Terminal 1
12 12 12 GND Ground
13 13 13 DIN
Serial-Data Input. The data at DIN synchronously loads into the serial shift
register on each SCLK rising edge.
16 16 16 SCLK Serial-Clock Input . SCLK clocks in the data when CS is low.
— 4, 9 4 D.N.C Do Not Connect. Leave unconnected for proper operation.
EP EP EP
Exposed
Pad
Exposed Pad. Externally connect EP to V
SS
to provide a low thermal resistance
path from the IC junction to the PC board or leave unconnected.