ISL90840 View Datasheet(PDF) - Intersil

Part Name

Description

Manufacturer

ISL90840

Quad Digitally Controlled Potentiometers (XDCP™)

Intersil 

ISL90840

SDA vs SCL Timing

tF

tHIGH

tLOW

SCL

tSU:STA

SDA

(INPUT TIMING)

tSU:DAT

tHD:STA

tHD:DAT

SDA

(OUTPUT TIMING)

tR

tAA tDH

A0, A1, and A2 Pin Timing

START

STOP

SCL

CLK 1

SDA IN

A0, A1, OR A2

tSU:A

tHD:A

tSU:STO

tBUF

Typical Performance Curves

160

VCC=2.7, T=+85°C

140 VCC=2.7, T=-40°C

VCC=2.7, T=+25°C

120

100

80

60

40

20 VCC=5.5, T=-40°C

VCC= 5.5, T=+85°C

VCC=5.5, T=+25°C

0

0

50

100

150

200

250

TAP POSITION (DECIMAL)

FIGURE 1. WIPER RESISTANCE vs TAP POSITION

[I(RW) = VCC / RTOTAL] FOR 50kΩ (U)

1.8

1.6

1.4

1.2

1

0.8

0.6

0.4

0.2

0

2.7

-40°C

+25°C

3.2

3.7

4.2

VCC (V)

+85°C

4.7

5.2

FIGURE 2. STANDBY ICC vs VCC

7

FN8086.2

November 14, 2006

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