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Characteristics & specifications, Recommended operating conditions, Analog characteristics – Cirrus Logic CS5464 User Manual

Page 7: Accuracy, Analog inputs (all inputs), Analog inputs (current inputs), Cs5464

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CS5464

DS682F3

7

3. CHARACTERISTICS & SPECIFICATIONS

RECOMMENDED OPERATING CONDITIONS

ANALOG CHARACTERISTICS

• Min / Max characteristics and specifications are guaranteed over all

Recommended Operating Conditions

.

• Typical characteristics and specifications are measured at nominal supply voltages and TA = 25 °C.
• VA+ = VD+ = 5 V ±5%; AGND = DGND = 0 V; VREFIN = +2.5 V. All voltages with respect to 0 V.
• DCLK = 4.096 MHz.

Notes: 1. Applies when the HPF option is enabled.

2. Applies when the line frequency is equal to the product of the output word rate (OWR) and the value of

Epsilon.

Parameter

Symbol Min Typ

Max

Unit

Positive Digital Power Supply

VD+

3.135

5.0

5.25

V

Positive Analog Power Supply

VA+

4.75

5.0

5.25

V

Voltage Reference

VREFIN

-

2.5

-

V

Specified Temperature Range

T

A

-40

-

+85

°C

Parameter

Symbol Min Typ

Max

Unit

Accuracy

Active Power

All Gain Ranges

(Note 1)

Input Range 0.1% - 100%

P

Active

-

±0.1

-

%

Reactive Power

All Gain Ranges

(Note 1 and 2)

Input Range 0.1% - 100%

Q

Avg

-

±0.2

-

%

Power Factor

All Gain Ranges

(Note 1 and 2)

Input Range 1.0% - 100%

Input Range 0.1% - 1.0%

PF

-
-

±0.2

±0.27

-
-

%
%

Current RMS

All Gain Ranges

(Note 1)

Input Range 1.0% - 100%

Input Range 0.1% - 1.0%

I

RMS

-
-

±0.1

±0.17

-
-

%
%
%

Voltage RMS

All Gain Ranges

(Note 1)

Input Range 5% - 100%

V

RMS

-

±0.1

-

%

Analog Inputs (All Inputs)

Common Mode Rejection

(DC, 50, 60 Hz)

CMRR

80

-

-

dB

Common Mode + Signal

-0.25

-

VA+

V

Analog Inputs (Current Inputs)

Differential Input Range

(Gain = 10)

[(IIN+) – (IIN-)]

(Gain = 50)

IIN

-
-

500
100

-
-

mV

P-P

mV

P-P

Total Harmonic Distortion

(Gain = 50)

THD

80

94

-

dB

Crosstalk from Voltage Input at Full Scale

(50, 60 Hz)

-

-115

-

dB

Input Capacitance

IC

-

27

-

pF

Effective Input Impedance

EII

30

-

-

k

Noise (Referred to Input)

(Gain = 10)

(Gain = 50)

N

I

-
-

-
-

22.5

4.5

µV

rms

µV

rms

Offset Drift (Without the High-pass Filter)

OD

-

4.0

-

µV/°C

Gain Error

(Note 3)

GE

-

±0.4

%