CS5460

4

DS279PP5

1. CHARACTERISTICS AND SPECIFICATIONS

VA- = AGND; MCLK = 4.096 MHz, K = 1; N = 4000, OWR = 4.0 kHz.)(See Notes 1, 2, and 3)

Notes: 1. Applies after system calibration

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. The minimum FSCR is limited by the maximum allowed gain register value.

5. Effective Input Impedance (EII) varies with clock frequency (DCLK) and Input Capacitance (IC)

EII = 1/(IC*DCLK/4)

Parameter

Symbol

Min

Typ

Max

Unit

Accuracy (Both Channels)

Total Harmonic Distortion

THD

74

-

-

dB

Common Mode Rejection

(DC, 50, 60 Hz)

CMRR

80

-

-

dB

Offset Drift (Without the High Pass Filter)

-

5

-

nV/°C

Full Scale DC Calibration Range

(Note 4)

FSCR

25

-

100

%F.S.

Input Sampling Rate

DCLK = MCLK/K

-

DCLK/4

-

Hz

Analog Inputs (Current Channel)

Differential Input Voltage Range

{(IIN+) - (IIN-)} (Gain = 10)

(Gain = 50)

IIN

-

-

150

30

-

-

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)

IC

-

-

5

25

-

-

pF

pF

Effective Input Impedance

(Note 5)

(Gain = 10)

(Gain = 50)

EII

30

30

-

-

-

-

k

Ω

k

Ω

Noise (Referred to Input)

(Gain = 10)

(Gain = 50)

-

-

-

-

20

4

Accuracy (Current Channel)

Bipolar Offset Error

(Note 1)

VOS

-

-

±0.001

%F.S.

Full-Scale Error

(Note 1)

FSE

-

-

±0.001

%F.S.

Analog Inputs (Voltage Channel)

Differential Input Voltage Range

{(VIN+) - (VIN-)}

VIN

-

150

-

Common Mode + Signal on VIN+ or VIN-

-0.25

-

VA+

V

Crosstalk with Current Channel at Full Scale

(50, 60 Hz)

-

-

-70

dB

Input Capacitance

IC

-

0.2

-

pF

Effective Input Impedance

(Note 5)

EII

5

-

-

M

Ω

Noise (Referred to Input)

-

-

250

Accuracy (Voltage Channel)

Bipolar Offset Error

(Note 1)

VOS

-

-

±0.01

%F.S.

Full-Scale Error

(Note 1)

FSE

-

-

±0.01

%F.S.