TSA1401

ELECTRICAL CHARACTERISTICS

6/19

External Reference Voltage

Power Consumption

RrefO

Reference output impedance

REFMODE=’0’: int references

18.7

Ω

Symbol

Parameter

Test conditions

Min

Typ

Max

Unit

Symbol

Parameter

Test conditions

Min

Typ

Max

Unit

VREFP

Forced Top reference voltage

REFMODE=’1’

0.8

1.3

V

VREFM

Bottom reference voltage

0

0.2

V

VINCM

Forced common mode voltage

0.4

1

V

RrefI

Reference input impedance

7.5

k

Ω

Vpol

Analog bias voltage

REFMODE=’1’

1.22

1.27

1.34

V

Symbol

Parameter

Test conditions

Min

Typ

Max

Unit

ICCA

Analog Supply current

REFMODE=’0’

REFMODE=’1’

40

30

37

mA

ICCD

Digital Supply Current

595

700

µA

ICCBI

Digital Buffer Supply Current

1

1.5

mA

ICCBE

Digital Buffer Supply Current

2.3

6

mA

ICCBEZ

Digital Buffer Supply Current in High

Impedance Mode

10

150

µA

Pd

Power consumption in normal opera-

tion mode

REFMODE=’0’

REFMODE=’1’

110

110

mW

PdZ

Power consumption in High Imped-

ance mode

REFMODE=’0’

REFMODE=’1’

104

96

mW

Rthja

Thermal resistance (TQFP48)

80

°C/W

1)

Typical values have been measured using the evaluation board on a dedicated test bench.