CS5451A

4

DS635F3

2.

CHARACTERISTICS AND SPECIFICATIONS

RECOMMENDED OPERATING CONDITIONS

ANALOG CHARACTERISTICS

•

Min/Max characteristics and specifications are guaranteed over all Operating Conditions.

•

Typical characteristics and specifications are measured at nominal supply voltages and TA = 25 °C.

•

VA+ = VD+ = 3 V ±10%; VA- = -2 V ±10%; AGND = DGND = 0 V; VREFIN = +1.2 V. All voltages with respect to 0 V.

•

XIN = 4.096 MHz.

Parameter

Symbol

Min

Typ

Max

Unit

DC Power Supplies

Positive Digital

Positive Analog

Negative Analog

VD+

VA+

VA-

2.7

2.7

-2.2

3.0

3.0

-2.0

3.3

3.3

-1.8

V

V

V

Voltage Reference Input

VREF+

-

1.2

-

V

Parameter

Symbol

Min

Typ

Max

Unit

Accuracy (All Channels)

Total Harmonic Distortion

THD

74

-

-

dB

Common Mode Rejection

(DC, 50, 60 Hz)

CMRR

80

-

-

dB

Common Mode + Signal on Input

VA-

-

VA+

V

Input Sampling Rate

-

XIN/8

-

Hz

Analog Inputs (Note 1)

Differential Input Voltage Range

Gain=20

Gain=1

VIN

VIN

-

-

80

1.6

-

-

Bipolar Offset

Gain=20

Gain=1

VOS

VOS

-

-

±11.5

±0.5

±20

±4.0

mV

mV

Crosstalk (Channel-to-channel)

(50, 60 Hz)

-

-105

-

dB

Input Capacitance

Gain = 20

Gain = 1

IC

IC

-

-

-

-

20

1

pF

pF

Effective Input Impedance

Gain=20

Gain=1

EII

EII

50

500

60

600

-

-

k

Ω

k

Ω

Noise (Referred to Input)

0-60 Hz

Gain=20

Gain=1

0-1 kHz

Gain=20

Gain=1

0-2 kHz

Gain=20

Gain=1

-

-

-

-

-

-

-

-

-

-

-

-

1

20

2.5

50

3.75

75

Reference Output

Output Voltage

REFOUT

1.15

1.2

1.25

V

Temperature Coefficient

-

25

50

ppm/°C

Load Regulation

(Output Current 1

μA Source or Sink)

-6

10

mV

Power Supply Rejection

PSRR

60

-

-

dB

Reference Input

Input Voltage Range

VREF+

1.15

1.2

1.25

V

Input Capacitance

-

-

10

pF

Input CVF Current

-

-

1

µA