CS5507-ASZR - 16-Bit Sigma-Delta ADC, 20-SOIC | Cirrus Logic
Référence : CS5507-ASZR ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $8.1 | $8,10 |
| 10 | $7.28 | $72,80 |
| 100 | $5.85 | $585,00 |
| 500 | $4.92 | $2 460,00 |
| 1 000 | $4.18 | $4 180,00 |
CS5507-ASZR Présentation
A sigma-delta ADC is a class of oversampling converter that trades raw speed for very high resolution by pushing quantisation noise out of the baseband with a modulator and a digital decimation filter. In this hierarchy, the CS5507 sits below general-purpose successive-approximation (SAR) ADCs in speed but above them in effective resolution at low input frequencies, making it a member of the precision low-frequency data-acquisition category of mixed-signal integrated circuits.
Key features include 16-bit (no missing codes) resolution, single +5V analog supply operation, low power consumption suitable for battery-powered measurement systems, and a serial output interface that simplifies galvanic isolation and PCB routing. The differential input stage allows direct connection to bridge sensors such as load cells and strain gauges without additional instrumentation amplifiers in many cases.
Typical applications include weigh scales, industrial pressure transducers, temperature-bridge digitisation using RTDs or thermocouple front-ends, and portable medical or environmental monitoring instruments. The wide-body 20-SOIC package aids hand prototyping and inspection while still supporting automated assembly.
When designing with the CS5507-ASZR, place the external reference bypass capacitor as close to the REFIN+/REFIN- pins as practical and keep digital and analog grounds separated under a single tie-point to preserve CMRR. The complete ordering suffix -ASZR indicates 20-SOIC package, commercial temperature grade, and tape-and-reel packaging.
Alternatives de remplacement direct pour CS5507-ASZR — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec CS5507-ASZR (même facteur de forme et même empreinte) — différant par Package, Resolution, Architecture, Power Consumption.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
CS5507-ASZ
✅ Remplacement direct✓ En stock
$9.2 / unité
Voir la fiche technique →CS5508-ASZ
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
CS5507-AS
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
CS5507-AP
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
CS5507-ASR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADS1220IPWR
✅ Remplacement direct✓ En stock
$1.91 / unité
Voir la fiche technique →CS5507-ASZR Valeurs maximales et caractéristiques électriques
| Résolution | 16 bit |
| Number of Channels | 1 input (differential) |
| Architecture | Sigma-Delta |
| Boîtier | 20-SOIC (0.295", 7.50 mm width) |
| Input Type | Differential |
| Reference Type | External or Internal |
| Series | CS5507 |
| Type de montage | Surface Mount |
| Converter Type | Data Acquisition - ADC |
| Power Consumption | Low power |
| Packaging Detail | Tape and Reel (-R suffix), 20-SOIC (-ASZ package code) |
Configuration des broches de CS5507-ASZR
| Broche 1 | VA+ — Analog positive supply |
| Broche 2 | VA+ — Analog positive supply |
| Broche 3 | AGND — Analog ground |
| Broche 4 | AIN+ — Differential analog input positive |
| Broche 5 | AIN- — Differential analog input negative |
| Broche 6 | REFIN+ — Differential reference input positive |
| Broche 7 | REFIN- — Differential reference input negative |
| Broche 8 | AGND — Analog ground |
| Broche 9 | DGND — Digital ground |
| Broche 10 | VD+ — Digital positive supply |
| Broche 11 | DGND — Digital ground |
| Broche 12 | [DATA_NEEDED: pin 12 name] — [DATA_NEEDED: pin 12 function] |
| Broche 13 | [DATA_NEEDED: pin 13 name] — [DATA_NEEDED: pin 13 function] |
| Broche 14 | [DATA_NEEDED: pin 14 name] — [DATA_NEEDED: pin 14 function] |
| Broche 15 | [DATA_NEEDED: pin 15 name] — [DATA_NEEDED: pin 15 function] |
| Broche 16 | [DATA_NEEDED: pin 16 name] — [DATA_NEEDED: pin 16 function] |
| Broche 17 | [DATA_NEEDED: pin 17 name] — [DATA_NEEDED: pin 17 function] |
| Broche 18 | [DATA_NEEDED: pin 18 name] — [DATA_NEEDED: pin 18 function] |
| Broche 19 | [DATA_NEEDED: pin 19 name] — [DATA_NEEDED: pin 19 function] |
| Broche 20 | [DATA_NEEDED: pin 20 name] — [DATA_NEEDED: pin 20 function] |
Applications typiques
CS5507-ASZR convient pour 6 applications: Weigh Scales and Load Cells, Industrial Pressure Transducers, Temperature Measurement Systems (RTD / Thermocouple), Portable Medical Monitoring Devices, Data Acquisition Front-Ends, Process Control and Sensor Signal Conditioning.
Weigh Scales and Load Cells
The CS5507-ASZR's 16-bit sigma-delta architecture and differential input make it well suited to digitising the output of bridge-type load cells in weigh-scale designs. Its low output word rate aligns with the slow mechanical settling time of a weighing platform, allowing the digital filter to reject mains-line interference. Pair the ADC with a low-drift reference such as the ADR4520 and drive the bridge directly from the differential inputs to achieve stable, repeatable readings across the scale's full capacity.
Recommandé
Industrial Pressure Transducers
Pressure transducers using strain-gauge bridges produce small differential voltages that benefit from the CS5507-ASZR's high common-mode rejection and differential input stage. The sigma-delta architecture's inherent digital filtering attenuates 50/60 Hz line noise that often appears in industrial environments. Designers commonly pair this ADC with on-board linear regulators and TVS protection to satisfy the EMC requirements of process-control installations.
Recommandé
Temperature Measurement Systems (RTD / Thermocouple)
RTD and thermocouple front-ends deliver low-frequency, low-amplitude signals, an ideal match for the CS5507-ASZR's 16-bit effective resolution and built-in digital filter. The differential input accommodates the inherent common-mode voltage of an RTD bridge, and the wide noise rejection bandwidth eliminates the need for complex analog filtering. The result is a compact, low-power temperature acquisition channel with simplified calibration.
Recommandé
Portable Medical Monitoring Devices
Battery-powered medical monitors demand low current draw and high measurement integrity. The CS5507-ASZR's low-power CMOS design preserves battery life while the 16-bit noise floor captures subtle physiological signals such as respiration rate or slow blood-pressure trends. Its small 20-SOIC footprint is also amenable to handheld-form-factor PCBs.
Recommandé
Data Acquisition Front-Ends
Multi-channel data acquisition boards can use the CS5507-ASZR as the digitiser for dedicated low-frequency transducer channels where high resolution outweighs sample rate. The serial output simplifies isolation between the analog front-end and the digital host processor. A small FPGA or microcontroller can read multiple CS5507-ASZR devices on independent serial ports, building scalable acquisition subsystems for laboratory and test equipment.
Recommandé
Process Control and Sensor Signal Conditioning
Industrial process-control loops often require precise 4-20 mA current-loop or bridge-sensor readout with galvanic isolation. The CS5507-ASZR's differential input accepts a conditioned bridge or shunt voltage directly, while its serial output easily passes through digital isolators to the controller side. Combined with adequate TVS protection and a regulated excitation supply, this ADC provides reliable long-term operation in harsh plant environments.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour CS5507-ASZR — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | CS5507-ASZ | CS5508-ASZ | CS5507-ASR | CS5507-AS | ADS1220IPW |
|---|---|---|---|---|---|---|
| Brand | Cirrus Logic | Cirrus Logic | Cirrus Logic | Cirrus Logic | Cirrus Logic | Texas Instruments |
| Package | 20-SOIC | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same | 20-SOIC (TSSOP-20 variant) - same footprint family |
| Resolution | 16 bit | 16 bit | 20 bit | 16 bit | 16 bit | 24 bit |
| Architecture | Sigma-Delta | Sigma-Delta | Sigma-Delta | Sigma-Delta | Sigma-Delta | Sigma-Delta |
| Number of Channels | 1 (differential) | 1 (differential) | 1 (differential) | 1 (differential) | 1 (differential) | 1 (differential) or 2 single-ended |
| Reference Type | External or Internal | External or Internal | External or Internal | External or Internal | External or Internal | External only |
| Packaging Format | Tape and Reel | Tube | Tube | Tape and Reel | Unspecified | Tube or Reel |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | Active |
Principaux différenciateurs
- Tape-and-reel factory format (vs CS5507-ASZ)
- 20-bit upgrade path in same footprint (vs CS5508-ASZ)
- Modern active alternative (vs ADS1220IPW)
Notes de conception
Place the REFIN+/REFIN- reference bypass capacitor (typically 0.1 uF in parallel with 10 uF) as close to the package pins as physically possible. Route the differential traces (AIN+, AIN- and REFIN+, REFIN-) as guarded parallel pairs with matched lengths to preserve CMRR. The 20-SOIC wide-body package provides generous pin spacing that simplifies hand layout but does not excuse sloppy grounding - keep the analog and digital ground planes joined at a single tie-point near the ADC.
Estimated: at a typical +5V analog supply, the CS5507-ASZR's power dissipation will be on the order of a few tens of milliwatts; the 20-SOIC wide-body easily handles this without derating. Designers should confirm the supply voltage and current from the datasheet, since over-voltage on VA+ or VA- will permanently damage the part. Avoid driving the analog inputs beyond the supply rails even with the protection diodes - the input fault current must be limited to 10 mA externally.
Sigma-delta converters rely on quiet supply rails for best noise performance. Place a ferrite bead or small RC filter between the analog and digital +5V rails, and bulk-decouple each supply pin individually. If the CS5507-ASZR shares a board with switching regulators or microcontrollers, route its analog section on the opposite side of a ground-plane split to minimise digital-coupled noise injection into the modulator.
Informations de conformité
Compliance information for the CS5507-ASZR was not explicitly listed in the verified distributor data; contact Cirrus Logic for the material declaration datasheet.
