IC-PI datasheet(8/49 Pages) ICHAUS

8 / 49 page

preliminary

iC-PI PROGRAMMABLE 12-BIT

Sin/Cos INTERPOLATION IC WITH RS422 DRIVER

Rev B1, Page 8/48

ELECTRICAL CHARACTERISTICS

Operating Conditions: VDD = 4.3 ... 5.5 V, Tj = -40 °C ... 125 °C, IBN calibrated to 200 µA, unless otherwise stated.

Item

Symbol

Parameter

Conditions

Unit

No.

Min.

Typ.

Max.

Total Device

001 V(VDD)

Permissible Supply Voltage

load current I(VDDS) to 10 mA

4.3

5.5

load current I(VDDS) to 20 mA

4.5

5.5

002 I(VDD)

Supply Current

Tj = -40...125 °C, no load

Tj = 27 °C, no load

003 I(VDDS)

Permissible Load Current VDDS

-20

004 Vcz()hi

Clamp-Voltage hi at all pins

005 Vc()hi

Clamp-Voltage hi at Inputs

SCL, SDA

Vc()hi = V() - V(VDDS), I() = 1 mA

0.4

1.5

006 Vc()hi

Clamp-Voltage hi at Inputs

X1...X6

Vc()hi = V() - V(VDDS), I() = 4 mA

0.3

1.2

007 Vc()lo

Clamp-Voltage lo at all pins

I() = -4 mA

-1.2

-0.3

008 Irev(VDD) Reverse-Polarity Current VDD

V(VDD) = −5.5V...−4.3 V relative to GND

PGA Inputs X1...X6 (i = 0 for CH0, i = 12 for CH1 and CH2)

101 fin()

Permissible Maximum Input

Frequency

500

kHz

102 Vin()sig

Permissible V-Mode Input

Voltage Range

Ri() = 0x01 (V-Mode 1:1)

0.75

VDDS

−

1.5

BIAS12 = 1, Ri() = 0x09 (V-Mode 4:1)

VDDS

BIAS12 = 0, Ri() = 0x09 (V-Mode 4:1)

VDDS

−

1.5

103 Vin()diff

Recommended Differential

V-Mode Input Voltage

Vin()diff = V(PCHx) − V(NCHx);

Ri() = 0x01 (V-Mode 1:1)

1000

mVpp

Ri() = 0x09 (V-Mode 4:1)

4000

mVpp

104 Vin()os

V-Mode Input Offset Voltage

relative to side of input, Ri() = 0x01;

-500

+500

µV

GRi and GFi = max. (max. gain)

106 Iin()

V-Mode Input Current

Ri() = 0x01 (V-Mode 1:1)

-0.5

0.5

µA

107 Iin()sig

Permissible I-Mode Input Current

Range

BIASi = 0, Ri(0) = 0

300

µA

BIASi = 1, Ri(0) = 0

-300

-10

µA

108 Rin()

I-Mode / V-Mode Input

Resistance

relative to VREFin, Tj = 27 °C

Ri() = 0x00

1.1

1.7

2.1

kΩ

Ri() = 0x02

1.6

2.5

3.0

kΩ

Ri() = 0x04

2.2

3.5

4.2

kΩ

Ri() = 0x06

3.2

4.9

6.0

kΩ

Ri() = 0x09 (V-Mode 4:1)

kΩ

109 R2()

I-Mode Conversion Resistor

Tj = 27 °C; Ri() = 0x00

1.6

kΩ

Ri() = 0x02

2.3

kΩ

Ri() = 0x04

3.2

kΩ

Ri() = 0x06

4.6

kΩ

Ri() = 0x09 (V-Mode 4:1)

5.0

kΩ

110 TC(Rin)

Temperature Coefficient of Rin

0.15

%/K

111

Vin(X2)

Permissible Inp. Voltage VREXex

at X2 (during reference function)

MUX = 0x30...0x3F

0.5

VDDS

−

112 Rin(X2)

Input Resistance at X2

(during reference function)

MUX = 0x30...0x3F, R0(3:0) = 0x01,

R12(3:0) = 0x01 (all channels in V-Mode 1:1)

kΩ

113 C(X2)

Permissible C-Load at X2

(during output function)

MUX = 0x20...0x2F, I(X2) = -150...+150 µA

100

114 Vout(X2)

Output Voltage at X2

(during output function)

MUX = 0x20...0x2F, relative to VREFin12;

I(X2) = -10...+10 µA

100

105

I(X2) = -150...+150 µA

110

115 VREFI()

Internal Reference Voltages

VREFI0, VREFI12

BIASi = 1

1.35

1.5

1.65

BIASi = 0

2.25

2.5

2.75

116 Vt()hi

Input Threshold Hi at X1, X2

(during digital input mode)

DUAL = 1, R0 = 0x0, MUX(5:4) = 0

117 Vt()lo

Input Threshold Lo at X1, X2

(during digital input mode)

DUAL = 1, R0 = 0x0, MUX(5:4) = 0

0.8

118 Vt()hys

Input Hysteresis at X1, X2

(during digital input mode)

Vt()hys = Vt()hi - Vt()lo;

200

DUAL = 1, R0 = 0x0, MUX(5:4) = 0

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