900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






Cirrus Logic

CS5525 Datasheet Preview

CS5525 Datasheet

16 BIT / 20 BIT MULTI RANGE ADC

No Preview Available !

CS5525
CS5526
16-Bit/20-Bit Multi-Range ADC with 4-Bit Latch
Features
Delta-Sigma A/D Converter
- Linearity Error: 0.0015%FS
- Noise Free Resolution: 18-bits
Bipolar/Unipolar Input Ranges
- 25 mV, 55 mV, 100 mV, 1 V, 2.5 V and 5 V
Chopper Stabilized Instrumentation Amplifier
On-Chip Charge Pump Drive Circuitry
4-Bit Output Latch
Simple three-wire serial interface
- SPI™ and Microwire™ Compatible
- Schmitt Trigger on Serial Clock (SCLK)
Programmable Output Word Rates
- 3.76 Hz to 202Hz (XIN = 32.768 kHz)
- 11.47 Hz to 616 Hz (XIN = 100 kHz)
Output Settles in One Conversion Cycle
Simultaneous 50/60 Hz Noise Rejection
System and Self-Calibration with
Read/Write Registers
Single +5 V Analog Supply
+3.0 V or +5 V Digital Supply
Low Power Mode Consumption: 4.9 mW
- 1.8 mW in 1 V, 2.5 V, and 5 V Input Ranges
General Description
The 16-bit CS5525 and the 20-bit CS5526 are highly in-
tegrated ∆Σ A/D converters which include an
instrumentation amplifier, a PGA (programmable gain
amplifier), eight digital filters, and self and system cali-
bration circuitry.
The converters are designed to provide their own nega-
tive supply which enables their on-chip instrumentation
amplifiers to measure bipolar ground-referenced signals
±100 mV. By directly supplying NBV with -2.5 V and
with VA+ at 5 V, ±2.5 V signals (with respect to ground)
can be measured.
The digital filters provide programmable output update
rates between 3.76 Hz to 202 Hz (XIN = 32.768 kHz).
Output word rates can be increased by approximately 3X
by using XIN = 100 kHz. Each filter is designed to settle
to full accuracy for its output update rate in one conver-
sion cycle. The filters with word rates of 15 Hz or less
(XIN = 32.768 kHz) reject both 50 and 60 Hz (±3 Hz) line
interference simultaneously.
Low power, single conversion settling time, programma-
ble output rates, and the ability to handle negative input
signals make these single supply products ideal solu-
tions for isolated and non-isolated applications.
ORDERING INFORMATION
See page26.
VA+ AGND
VREF+ VREF-
DGND
VD+
AIN+
AIN-
+
X20
-
Programmable
Gain
NBV
A0
A1
A2
A3
Latch
Calibration
Memory
Differential
4th Order
Delta-Sigma
Modulator
Digital Filter
Calibration µC
Clock
Gen.
Calibration
Register
Control
Register
Output
Register
CS
SCLK
SDI
SDO
Cirrus Logic, Inc.
www.cirrus.com
CPD
XIN XOUT
Copyright Cirrus Logic, Inc. 2003
(All Rights Reserved)
Nov ‘03
DS202F3
1




Cirrus Logic

CS5525 Datasheet Preview

CS5525 Datasheet

16 BIT / 20 BIT MULTI RANGE ADC

No Preview Available !

CS5525 CS5526
ANALOG CHARACTERISTICS (TA = 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 Hz, Bipolar Mode, Input Range = ±100 mV;
See Notes 1 and 2.)
CS5525
CS5526
Parameter
Min Typ Max
Accuracy
Linearity Error
- ±0.0015 ±0.003
No Missing Codes
16 -
-
Bipolar Offset
(Note 3) -
±1 ±2
Unipolar Offset
(Note 3) -
±2 ±4
Offset Drift
(Notes 3 and 4) - 20 -
Bipolar Gain Error
- ±8 ±31
Unipolar Gain Error
- ±16 ±62
Gain Drift
(Note 4) - 1 3
Voltage Reference Input
Range
(VREF+) - (VREF-) 1 2.5 3.0
Common Mode Rejection dc
50, 60 Hz
- 110 -
- 130 -
Input Capacitance
- 16 -
CVF Current
(Note 5) - 0.6 -
Min Typ Max Unit
- ±0.0007 ±0.0015 %FS
20 -
- Bits
- ±16 ±32 LSB
- ±32 ±64 LSB
- 20 - nV/°C
- ±8 ±31 ppm
- ±16 ±62 ppm
- 1 3 ppm/°C
1 2.5 3.0 V
- 110 - dB
- 130 - dB
- 16 - pF
- 0.6 - µA/V
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 = LSB16 for the CS5525, and LSB20 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)
Output Rate
(Hz)
3.76
7.51
15.0
30.1
60.0
123.2 (Note 8)
168.9 (Note 8)
202.3 (Note 8)
-3 dB Filter
Frequency
3.27
6.55
12.7
25.4
50.4
103.6
141.3
169.2
25 mV
90 nV
110 nV
170 nV
250 nV
500 nV
2.0 µV
10 µV
30 µV
Input Range, (Bipolar/Unipolar Mode)
55 mV
100 mV
1V
2.5 V
90 nV
130 nV
1.0 µV
2.0 µV
130 nV
190 nV
1.5 µV
3.0 µV
200 nV
250 nV
2.0 µV
5.0 µV
300 nV
500 nV
4.0 µV
10 µV
1.0 µV
1.5 µV
15 µV
45 µV
4.0 µV
8.0 µV
72 µV
190 µV
20.0 µV
30 µV
340 µV
900 µV
55 µV
105 µV
1.1 mV
2.4 mV
5V
4.0 µV
7 µV
10 µV
15 µV
85 µV
350 µV
2.0 mV
5.3 mV
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 Hz, 32.768 kHz chopping frequency is used.
Specifications are subject to change without notice.
2 DS202F3


Part Number CS5525
Description 16 BIT / 20 BIT MULTI RANGE ADC
Maker Cirrus Logic
PDF Download

CS5525 Datasheet PDF






Similar Datasheet

1 CS5520 16-Bit/20-Bit Bridge Transducer A/D Converter
Crystal
2 CS5521 ADC
Cirrus Logic
3 CS5522 ADC
Cirrus Logic
4 CS5523 ADC
Cirrus Logic
5 CS5524 ADC
Cirrus Logic
6 CS5525 16 BIT / 20 BIT MULTI RANGE ADC
Cirrus Logic
7 CS5526 16 BIT / 20 BIT MULTI RANGE ADC
Cirrus Logic
8 CS5528 ADC
Cirrus Logic
9 CS5529 16-BIT PROGRAMMABLE ADC
Cirrus Logic





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy