Cirrus Logic CS5451A - Manual (Page 4)

CS5451A
4 DS635F4
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
[(I
IN+
) - (I
IN-
)] or [(V
IN+
) - (V
IN-
)] Gain=1
VIN
VIN -
- 80
1.6
-
- mV
P-P
V
P-P
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

k

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
µV
rms
µV
rms
µV
rms
µV
rms
µV
rms
µV
rms
Reference Output
Output Voltage REFOUT 1.15 1.2 1.25 V
Temperature Coefficient - 25 50 ppm/°C
Load Regulation (Output Current 1
A Source or Sink) V
R
- 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