CS5460A datasheet(5/54 Pages) CIRRUS

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CS5460A

DS487F4

1. CHARACTERISTICS & SPECIFICATIONS

ANALOG CHARACTERISTICS

(TA = -40 °C to +85 °C; VA+ = VD+ = +5 V ±10%; VREFIN = +2.5 V; VA- = AGND = 0 V; MCLK = 4.096 MHz,

K = 1; N = 4000 ==> OWR = 4000 Sps.)(See Notes 1, 2, 3, 4, and 5.)

Notes:

Bipolar Offset Errors and Full-Scale Gain Errors for the current and voltage channels refer to the respective Irms

mode, after offset/gain system calibration sequences have been executed. These specs do not apply to the error

of the Instantaneous Current/Voltage Register output.

Specifications guaranteed by design, characterization, and/or test.

Analog signals are relative to VA- and digital signals to DGND unless otherwise noted.

In requiring VA+ = VD+ =5 V ±10%, note that it is allowable for VA+, VD+ to differ by as much as ±200 mV, as long

as VA+ > VD+.

Note that “Sps” is an abbreviation for units of “samples per second”.

Effective Input Impedance (Zin) is determined by clock frequency (DCLK) and Input Capacitance (IC).

Zin = 1/(IC*DCLK/4). Note that DCLK = MCLK / K.

Parameter

Symbol

Min

Typ

Max

Unit

Accuracy (Both Channels)

Common Mode Rejection

(DC, 50, 60 Hz)

CMRR

Offset Drift (Without the High Pass Filter)

nV/°C

Analog Inputs (Current Channel)

Maximum Differential Input Voltage Range

(Gain = 10)

{(VIIN+) - (VIIN-)}

(Gain = 50)

IIN

500

100

mVP-P

Total Harmonic Distortion

THDI

Common Mode + Signal on IIN+ or IIN-

(Gain = 10 or 50)

-0.25

VA+

Crosstalk with Voltage Channel at Full Scale

(50, 60 Hz)

-115

Input Capacitance

(Gain = 10)

(Gain = 50)

Cin

Effective Input Impedance

(Note 6)

(Gain = 10)

(Gain = 50)

ZinI

Ω

Noise (Referred to Input)

(Gain = 10)

(Gain = 50)

µVrms

Accuracy (Current Channel)

Bipolar Offset Error

(Note 1)

VOSI

±0.001

%F.S.

Full-Scale Error

(Note 1)

FSEI

±0.001

%F.S.

Analog Inputs (Voltage Channel)

Maximum Differential Input Voltage Range

{(VVIN+) - (VVIN-)}

VIN

500

mVP-P

Total Harmonic Distortion

THDV

Common Mode + Signal on VIN+ or VIN-

VA-

VA+

Crosstalk with Current Channel at Full Scale

(50, 60 Hz)

-70

Input Capacitance

CinV

-0.2

Effective Input Impedance

(Note 6)

ZinV

-5

Ω

Noise (Referred to Input)

250

µVrms

Accuracy (Voltage Channel)

Bipolar Offset Error

(Note 1)

VOSV

±0.01

%F.S.

Full-Scale Error

(Note 1)

FSEV

±0.01

%F.S.

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