Cirrus Logic CS5526 - Manual (Page 2)

CS5525 CS5526
2 DS202F5
ANALOG CHARACTERISTICS
(T
A
= 25 °C; VA+, VD+ = 5 V ±5%; VREF+ = 2.5 V, VREF- = AGND,
NBV = -2.1 V, FCLK = 32.768 kHz, OWR (Output Word Rate) = 15 Sps, Bipolar Mode, Input Range = ±100 mV;
See Notes 1 and 2.)
Notes: 1. Applies after system calibration at any temperature within -40 °C ~ +85 °C.
2. Specifications guaranteed by design, characterization, and/or test.
3. Specification applies to the device only and does not include any effects by external parasitic
thermocouples. LSB = LSB
16
for the CS5525, and LSB
20
for the CS5526.
4. Drift over specified temperature range after calibration at power-up at 25 °C.
5. See the section of the data sheet which discusses input models on page 15.
RMS NOISE
(Notes 6 and 7)
Notes: 6. Wideband noise aliased into the baseband. Referred to the input. Typical values shown for 25 °C.
7. For Peak-to-Peak Noise multiply by 6.6 for all ranges and output rates.
8. For input ranges <100 mV and output word rates >60 Sps, 32.768 kHz chopping frequency is used.
Specifications are subject to change without notice.
Parameter
CS5525 CS5526
Min Typ Max Min Typ Max Unit
Accuracy
Linearity Error -
±0.0015 ±0.003
-
±0.0007 ±0.0015 %FS
No Missing Codes 16 - - 20 - - Bits
Bipolar Offset (Note 3) -
±1
±2 -
±16
±32 LSB
Unipolar Offset (Note 3) -
±2 ±4
-
±32 ±64
LSB
Offset Drift (Notes 3 and 4) - 20 - - 20 - nV/°C
Bipolar Gain Error -
±8 ±31
-
±8 ±31
ppm
Unipolar Gain Error -
±16 ±62
-
±16 ±62
ppm
Gain Drift (Note 4) - 1 3 - 1 3 ppm/°C
Voltage Reference Input
Range (VREF+) - (VREF-) 1 2.5 3.0 1 2.5 3.0 V
Common Mode Rejection dc
50, 60 Hz -
- 110
130
-
- -
- 110
130
-
- dB
dB
Input Capacitance - 16 - - 16 - pF
CVF Current (Note 5) - 0.6 - - 0.6 - µA/V
Output Rate
(Sps)
-3 dB Filter
Frequency
Input Range, (Bipolar/Unipolar Mode)
25 mV 55 mV 100 mV 1 V 2.5 V 5 V
3.76 3.27 90 nV 90 nV 130 nV 1.0 µV 2.0 µV 4.0 µV
7.51 6.55 110 nV 130 nV 190 nV 1.5 µV 3.0 µV 7 µV
15.0 12.7 170 nV 200 nV 250 nV 2.0 µV 5.0 µV 10 µV
30.1 25.4 250 nV 300 nV 500 nV 4.0 µV 10 µV 15 µV
60.0 50.4 500 nV 1.0 µV 1.5 µV 15 µV 45 µV 85 µV
123.2 (Note 8) 103.6 2.0 µV 4.0 µV 8.0 µV 72 µV 190 µV 350 µV
168.9 (Note 8) 141.3 10 µV 20.0 µV 30 µV 340 µV 900 µV 2.0 mV
202.3 (Note 8) 169.2 30 µV 55 µV 105 µV 1.1 mV 2.4 mV 5.3 mV