MAX5494 查看數據表（PDF） - Maxim Integrated
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MAX5494 Datasheet PDF : 20 Pages
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10-Bit, Dual, Nonvolatile, Linear-Taper
Digital Potentiometers
Pin Descriptions
PIN
MAX5494/ MAX5496/ MAX5498/
MAX5495 MAX5497 MAX5499
1
1
1
2
2
2
3
3
3
4
—
—
5
5
5
6, 7,14,15 6, 7,14,15 6, 7,14,15
8
8
8
9
—
9
10
10
10
11
11
11
12
12
12
13
13
13
16
16
16
—
4, 9
4
EP
EP
EP
NAME
CS
W2
L2
H2
VDD
N.C.
VSS
H1
L1
W1
GND
DIN
SCLK
D.N.C
Exposed
Pad
FUNCTION
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.
Wiper Terminal 2
Low Terminal 2
High Terminal 2
Positive Power-Supply Input. 2.7V ≤ VDD ≤ 5.25V. Bypass with a 0.1µF
capacitor from VDD to GND as close to the device as possible
No Connection. Not internally connected.
Negative Power-Supply Input.
Single-supply operation: VSS = GND = 0.
Dual-supply operation: -2.5V ≤ VSS ≤ -0.2V (VSS can vary as long as
(VDD - VSS) ≤ 5.25V).
Bypass with a 0.1µF capacitor from VSS to GND as close to the device
as possible.
High Terminal 1
Low Terminal 1
Wiper Terminal 1
Ground
Serial-Data Input. The data at DIN synchronously loads into the serial shift
register on each SCLK rising edge.
Serial-Clock Input . SCLK clocks in the data when CS is low.
Do Not Connect. Leave unconnected for proper operation.
Exposed Pad. Externally connect EP to VSS to provide a low thermal resistance
path from the IC junction to the PC board or leave unconnected.
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