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Thermal characteristics, Analog characteristics, Thermal characteristics analog characteristics – Cirrus Logic CS5374 User Manual

Page 5: Cs5374

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CS5374

CS5374

5

THERMAL CHARACTERISTICS

ANALOG CHARACTERISTICS

Notes: 7. Common mode signals pass through the differential amplifier architecture and are rejected by the

modulator CMRR.

8. Output impedance characteristics are approximate and can vary up to ±30% depending on process

parameters.

Parameter

Symbol Min Typ

Max

Unit

Ambient Operating Temperature

T

A

-10

-

70

°C

Storage Temperature Range

T

STR

-65

-

150

°C

Allowable Junction Temperature

T

JCT

-

-

125

°C

Junction to Ambient Thermal Impedance (4-layer PCB)

θ

JA

-

26

-

°C / W

Parameter

Symbol Min Typ

Max

Unit

Amplifier Inputs
Signal Frequencies

BW

DC

-

2000

Hz

Differential Gain

GAIN

x1

-

x64

Common Mode Gain

(

Note 7)

GAIN

CM

-

x1

-

Common Mode Voltage

V

cm

-

(VA-)+2.5

-

V

Voltage Range (Signal + Vcm)

x1

x2 - x64

V

IN

(VA-)+0.7
(VA-)+0.7

-
-

(VA+)-1.25
(VA+)-1.75

V

Full Scale Differential Input

x1
x2
x4
x8

x16
x32
x64

V

INFS

-
-
-
-
-
-
-

-
-
-
-
-
-
-

5

2.5

1.25

625

312.5

156.25
78.125

V

pp

V

pp

V

pp

mV

pp

mV

pp

mV

pp

mV

pp

Differential Input Impedance

Z

INDIFF

-

1, 20

-

T

Ω, pF

Common Mode Input Impedance

Z

INCM

-

0.5, 40

-

T

Ω, pF

Input Bias Current

I

IN

-

1

40

pA

Amplifier Outputs
Full Scale Output, Differential

V

OUT

-

-

5

V

pp

Output Voltage Range (Signal + Vcm)

V

RNG

(VA-)+0.5

-

(VA+)-0.5

V

Output Impedance

(

Note 8

)

Z

OUT

-

40

-

Ω

Output Impedance Drift

(

Note 8

)

Z

TC

-

0.38

-

Ω/°C

Output Current

I

OUT

-

-

+25

mA

Load Capacitance

C

L

-

-

100

nF

Guard Outputs
Guard Output Voltage

V

GUARD

-

V

cm

-

V

Guard Output Impedance

(

Note 8

)

ZG

OUT

-

500

-

Ω

Guard Output Current

IG

OUT

-

-

40

μA

Guard Load Capacitance

CG

L

-

-

100

pF