Cirrus-logic CS5460A User Manual download pdf (Page 5)

CS5460A

DS487F5 5

1. CHARACTERISTICS & SPECIFICATIONS

ANALOG CHARACTERISTICS

= -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:

1. 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.

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

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

4. 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+.

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

6. 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 80 - - dB

Offset Drift (Without the High Pass Filter) - 5 - nV/°C

Analog Inputs (Current Channel)

Maximum Differential Input Voltage Range (Gain = 10)

{(V

IIN+) - (VIIN-)} (Gain = 50)

IN -

500

100

P-P

Total Harmonic Distortion THDI 80 - - dB

Common Mode + Signal on IIN+ or IIN- (Gain = 10 or 50) -0.25 - VA+ V

Crosstalk with Voltage Channel at Full Scale (50, 60 Hz) - - -115 dB

Input Capacitance (Gain = 10)

(Gain = 50)

in -

Effective Input Impedance (Note 6)

(Gain = 10)

(Gain = 50)

inI

ZinI

k

Noise (Referred to Input) (Gain = 10)

(Gain = 50)

µV

rms

µV

rms

Accuracy (Current Channel)

Bipolar Offset Error (Note 1) VOS

I - ±0.001 - %F.S.

Full-Scale Error (Note 1) FSE

I - ±0.001 - %F.S.

Analog Inputs (Voltage Channel)

Maximum Differential Input Voltage Range {(V

VIN+) - (VVIN-)} VIN --500mV

P-P

Total Harmonic Distortion THDV 62 - - dB

Common Mode + Signal on VIN+ or VIN- VA- - VA+ V

Crosstalk with Current Channel at Full Scale (50, 60 Hz) - - -70 dB

Input Capacitance C

inV -0.2-pF

Effective Input Impedance (Note 6) Z

inV -5-M

Noise (Referred to Input) - - 250 µV

rms

Accuracy (Voltage Channel)

Bipolar Offset Error (Note 1) VOS

V - ±0.01 - %F.S.

Full-Scale Error (Note 1) FSE

V - ±0.01 - %F.S.

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Cirrus-logic CS5460A User Manual Page 5

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