CS5451A

DS635F2

5

Notes:

1.

Specifications for Gain = 20 apply only to Current Channels. Voltage Channels are fixed to Gain = 1

2.

All outputs unloaded. All inputs CMOS level.

3.

Definition for PSRR: VREFIN tied to VREFOUT, VA+ = VD+ = 3 V, AGND = DGND = 0 V, VA- = -2 V (using charge-

pump circuit with CPD). In addition, a 106.07 mV rms (60 Hz) sinewave is imposed onto the VA+ and VD+ pins.

The “+” and “-” input pins of both input channels are shorted to VA-. 2048 instantaneous digital output data words

are collected for the channel under test. The rms value of the digital sinusoidal output signal is calculated, and this

rms value is converted into the rms value of the sinusoidal voltage (measured in mV) that would need to be applied

at the channel’s inputs, in order to cause the same digital sinusoidal output. This voltage is then defined as Veq.

PSRR is then (in dB):

•

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

•

XIN = 4.096 MHz

Notes:

4.

All measurements performed under static conditions.

5.

For OWRS and GAIN pins, input leakage current is 30 µA (Max).

Parameter

Symbol

Min

Typ

Max

Unit

Power Supplies

Power Supply Currents

Typical VA+=VD+=+3V; VA-=-2V

PSCA

PSCD

PSCD

-

-

-

4.0

5.0

1.0

5.3

6.3

1.5

mA

mA

mA

Power Consumption

With CPD

(Note 2)

Without CPD

PC

PC

-

-

27

23

35

31

mW

mW

Power Supply Rejection

(DC)

50, 60 Hz (Note 3)

Voltage Channel

50, 60 Hz (Note 3)

Current Channel

PSRR

PSRR

PSRR

50

50

60

-

65

90

-

-

-

dB

dB

dB

Parameter

Symbol

Min

Typ

Max

Unit

Master Clock Characteristics

Master Clock Frequency

XIN

3

4.096

5

MHz

Master Clock Duty Cycle

40

-

60

%

Filter Characteristics

High Rate Filter Output Word Rate

OWRS = 0

OWRS = 1

OWR

OWR

-

-

XIN/2048

XIN/1024

-

-

Hz

Hz

Input/Output Characteristics

High-Level Input Voltage

0.6 VD+

-

VD+

V

Low-Level Input Voltage

0.0

-

0.8

V

High-Level Output Voltage

(VD+) - 1.0

-

-

V

Low-Level Output Voltage

--

0.4

V

Input Leakage Current

(Note 5)

-±1

±10

µA

3-State Leakage Current

--

±10

µA

Digital Output Pin Capacitance

-9

-

pF

PSRR

20

106.07

V

eq

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⎩⎭

⎨⎬

⎧⎫

log

⋅

=