CS5371A CS5372A
4 DS748F3
1. CHARACTERISTICS AND SPECIFICATIONS
Min / Max characteristics and specifications are guaranteed over the Specified Operating Conditions.
Typical performance characteristics and specifications are measured at nominal supply voltages and T
A
= 25°C.
GND = 0 V. Single-ended voltages with respect to GND, differential voltages with respect to opposite half.
Device is connected as shown in Figure 9 on page 13 unless otherwise noted.
SPECIFIED OPERATING CONDITIONS
Notes: 1. VA- must always be the most-negative input voltage to avoid potential SCR latch-up conditions.
2. By design, a 2.500 V voltage reference input results in the best signal-to-noise performance.
3. Channel-to-channel gain accuracy is directly proportional to the voltage reference absolute accuracy.
4. VREF inputs must satisfy: VA- VREF- < VREF+ VA+.
ABSOLUTE MAXIMUM RATINGS
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
Notes: 5. Transient currents up to ±100 mA will not cause SCR latch-up.
6. Includes continuous over-voltage conditions at the modulator analog input pins.
Parameter Symbol Min Nom Max Unit
Bipolar Power Supplies
Positive Analog ± 2% VA+ 2.45 2.50 2.55 V
Negative Analog (Note 1) ± 2% VA- -2.45 -2.50 -2.55 V
Positive Digital ± 3% VD 3.20 3.30 3.40 V
Voltage Reference
[VREF+] - [VREF-] (Note 2, 3) VREF - 2.500 - V
VREF- (Note 4)VREF- - VA- - V
Thermal
Ambient Operating Temperature Industrial (-ISZ) T
A
-40 25 85 °C
Parameter Symbol Min Max Parameter
DC Power Supplies Positive Analog
Negative Analog
Digital
VA+
VA-
VD
-0.5
-6.8
-0.5
6.8
0.5
6.8
V
V
V
Analog Supply Differential (VA+) - (VA-) VA
DIFF
-6.8V
Digital Supply Differential (VD) - (VA-) VD
DIFF
-6.8V
Input Current, Power Supplies (Note 5)I
PWR
50mA
Input Current, Any Pin Except Supplies (Note 5, 6)I
IN
10mA
Output Current (Note 5)I
OUT
25mA
Power Dissipation PDN - 500 mW
Analog Input Voltages V
INA
(VA-) - 0.5 (VA+) + 0.5 V
Digital Input Voltages V
IND
-0.5 (VD) + 0.5 V
Storage Temperature Range T
STG
-65 150 ºC
CS5371A CS5372A
DS748F3 5
TEMPERATURE CONDITIONS
ANALOG INPUT CHARACTERISTICS
Notes: 7. Maximum integrated noise over the measurement bandwidth for the voltage reference device attached
to the VREF± inputs.
8. Anti-alias capacitors are discrete external components and must be of good quality (C0G, NPO, poly).
Poor quality capacitors will degrade total harmonic distortion (THD) performance. See Figure 1 on
page 5
Parameter Symbol Min Typ Max Unit
Ambient Operating Temperature T
A
-40 - 85 ºC
Storage Temperature Range T
STR
-65 - 150 ºC
Allowable Junction Temperature T
JCT
--125ºC
Junction to Ambient Thermal Impedance (4-layer PCB) θ
JA
-65-ºC/W
Parameter Symbol Min Typ Max Unit
VREF Input
[VREF+] - [VREF-] (Note 2, 3) VREF - 2.500 - V
VREF- (Note 4)VREF- - VA- - V
VREF Input Current VREF
IMOD
-120- µA
VREF Input Noise (Note 7)VREF
IN
--1µV
rms
Modulator INR±, INF± Inputs
External Anti-alias Filter Series Resistance
(Note 8) Differential Capacitance
R
AA
C
DIFF
-
-
680
20
-
-
Ω
nF
Differential Input Impedance INR±
INF±
ZDIF
INR
ZDIF
INF
-
-
20
1
-
-
kΩ
MΩ
Single-ended Input Impedance INR±
INF±
ZSE
INR
ZSE
INF
-
-
40
2
-
-
kΩ
MΩ
CS5371A / CS5372A
MODULATOR
INR+
INF+
INF-
INR-
20nF
C0G
20nF
C0G
680
CS3301A / CS3302A
AMPLIFIER
OUTR+
OUTF+
OUTF-
OUTR-
680
680
680
Figure 1. Anti-alias Filter Components
CS5371A CS5372A
6 DS748F3
PERFORMANCE CHARACTERISTICS
Notes: 9. Guaranteed by design and/or characterization.
10. The upper bandwidth limit is determined by the digital filter cut-off frequency.
11. Common mode voltage is defined as the mid-point of the differential signal.
12. Dynamic Range defined as 20 log [ (RMS full scale) / (RMS idle noise) ] where idle noise is measured
from a CS3301A / CS3302A amplifier terminated input at 1x gain.
13. Signal-dependent Noise defined as 20 log [ (RMS full scale) / (RMS signal noise) ] where signal noise
is measured by subtracting out the signal power at the fundamental and harmonic frequencies.
14. Tested with a 31.25 Hz sine wave at -1 dB amplitude and Vcm = (VA-) + 2.50V.
15. Characterized with a 31.25 Hz sine wave at -1 dB amplitude and Vcm = (VA-) + 2.35V. This
corresponds to the output Vcm of the CS4373A test DAC.
Parameter Symbol Min Typ Max Unit
Signal Characteristics
Input Signal Frequencies (Note 9, 10) V
BW
DC - 2000 Hz
Full-scale Differential AC Input (Note 9)V
AC
--5V
pp
Full-scale Differential DC Input (Note 9)V
DC
-2.5 - 2.5 V
Input Common Mode Voltage (Note 11) V
CM
- (VA-)+2.5 -V
Input Voltage Range (V
cm
±Signal) (Note 9) V
RNG
(VA-)+0.7
- (VA+)-1.25 V
Dynamic Performance
Dynamic Range (1/4 ms) DC to 1720 Hz
(Note 10, 12) (1/2 ms) DC to 860 Hz
(1 ms) DC to 430 Hz
(2 ms) DC to 215 Hz
(4 ms) DC to 108 Hz
(8 ms) DC to 54 Hz
(16 ms) DC to 27 Hz
SNR -
-
121
-
-
-
-
109
121
124
127
130
133
136
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
Signal-dependent Noise (1 ms) DC to 430 Hz
(Note 13, 14)
SDN 100 110 - dB
Total Harmonic Distortion (Note 14) THD - -118 -112 dB
Linearity (Note 14)LIN -
0.000126 0.000251
%
Total Harmonic Distortion (Note 15)THD - -110 - dB
Linearity (Note 15)LIN -
0.000316
-%
Common Mode Rejection Ratio CMRR - 110 - dB
Channel Crosstalk (CS5372A only) CXT - -150 - dB

CS5371A-ISZ

Mfr. #:
Manufacturer:
Cirrus Logic
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New from this manufacturer.
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