ADS5103CPFBRG4 - 10-Bit 40MSPS ADC, 1.8V, 48-TQFP | Texas Instruments
Référence : ADS5103CPFBRG4 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $9.45 | $9,45 |
| 10 | $8.62 | $86,20 |
| 100 | $7.1 | $710,00 |
| 500 | $5.85 | $2 925,00 |
| 1 000 | $4.95 | $4 950,00 |
ADS5103CPFBRG4 Présentation
An analog-to-digital converter (ADC) is a data-conversion integrated circuit that samples a continuous-time analog signal and quantizes it into a discrete digital codeword. Pipelined ADCs use a multi-stage switched-capacitor architecture to achieve sampling rates from a few MSPS to over 100 MSPS while maintaining low power consumption. Within the broader IC taxonomy, pipelined ADCs sit under successive-approximation (SAR) and flash converters as a class of data converters, themselves a sub-class of mixed-signal ICs in the data-acquisition family. The ADS5103 belongs to TI's ADS510x family, the slower (40 MSPS) counterpart to the 65 MSPS ADS5102, sharing the same die and pinout.
Key specifications include 10-bit resolution, 40 MSPS maximum sampling rate, single 1.8 V supply operation, internal 1.25 V reference (with external-reference option), differential input with 1 Vp-p full-scale range, and an integrated power-down (Pwrdwn) pin for low standby current. Output data is delivered on a 10-bit parallel CMOS bus and the device typically dissipates under 100 mW at 40 MSPS. A separate output supply pin allows the digital bus to interface directly to 1.8 V, 2.5 V, or 3.3 V logic without level shifters.
Internally, the ADS5103 uses a multi-stage pipelined switched-capacitor architecture with digital error correction, eliminating the need for laser trimming. The internal bandgap-derived reference can be overdriven by an external reference if system-level calibration or higher stability is required. The differential input stage provides good common-mode rejection, which is critical when digitizing signals driven from a single-ended source through an external balun or driver.
Typical applications include portable ultrasound front-ends, digital still cameras, CCD digitizers, digital video broadcast (DVB) set-top box baseband, and handheld instrumentation. The 1.8 V single-supply operation and integrated reference make it a low-BOM-cost choice for compact embedded designs. Industrial imaging, multi-channel data acquisition, and low-power medical imaging platforms are also common deployment scenarios.
When designing with the ADS5103, the most important consideration is the analog input network. The differential input should be AC- or DC-coupled through a driver such as the THS4520 or OPA1632, with 50 Ω termination resistors chosen to match the source. Place the input RC network as close to the AINP/AINN pins as possible, and use a solid ground plane on layer 2 to isolate the analog front-end from the noisy digital outputs. A 0.1 µF decoupling capacitor as close as possible to each AVDD/DVDD pin is essential for clean conversion at 40 MSPS.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for the ADS5103CPFBRG4 not found in the manufacturer datasheet alone.
Alternatives de remplacement direct pour ADS5103CPFBRG4 — 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 ADS5103CPFBRG4 (même facteur de forme et même empreinte) — différant par Package, Reference, Resolution, Input Type, Operating Temperature.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ADS5103CPFBR
✅ Remplacement direct✓ En stock
$4.45 / unité
Voir la fiche technique →ADS5102IPFBR
✅ Remplacement direct✓ En stock
$5.05 / unité
Voir la fiche technique →ADS5102IPFBRG4
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$4.1 / unité
Voir la fiche technique →ADS5102CPFBR
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$5.85 / unité
Voir la fiche technique →ADS5102CPFBRG4
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$7.1 / unité
Voir la fiche technique →ADS5103CPFBRG4 Valeurs maximales et caractéristiques électriques
| Résolution | 10 bit |
| Fréquence d'échantillonnage | 40 MSPS (max) |
| Number of Channels | 1 |
| Architecture | Pipelined CMOS |
| Analog Supply Voltage | 1.8 V (typical, single supply) |
| Digital I/O Supply | 1.8 V to 3.3 V (separate DVDD pin) |
| Input Type | Differential analog input |
| Full-Scale Input Range | 1.0 Vp-p differential |
| Reference | Internal 1.25 V, external-reference option |
| Output Interface | 10-bit parallel CMOS |
| Output Logic Compatibility | 1.8 V / 2.5 V / 3.3 V |
| Power-Down Pin | Yes (Pwrdwn) |
| Boîtier | 48-pin TQFP (PFB), 7x7 mm |
| Température de fonctionnement | 0C to +70C (commercial) |
| Statut RoHS | Compliant |
Configuration des broches de ADS5103CPFBRG4
| Broche 1 | AVDD — Analog 1.8V supply |
| Broche 2 | AINP — Differential analog input positive |
| Broche 3 | AINN — Differential analog input negative |
| Broche 4 | AGND — Analog ground |
| Broche 5 | REFT — Internal reference top (decoupling) |
| Broche 6 | REFB — Internal reference bottom (decoupling) |
| Broche 7 | REFRES — Reference resistor (connect to AGND) |
| Broche 8 | REFIN — Reference input (internal/external select) |
| Broche 9 | AGND — Analog ground |
| Broche 10 | AVDD — Analog 1.8V supply |
| Broche 11 | CLK — Sample clock input |
| Broche 12 | CLKB — Complementary clock input (for differential drive) |
| Broche 13 | AGND — Analog ground |
| Broche 14 | DGND — Digital ground |
| Broche 15 | DVDD — Digital output supply (1.8V-3.3V) |
| Broche 16 | DGND — Digital ground |
| Broche 17 | D9 — Data output bit 9 (MSB) |
| Broche 18 | D8 — Data output bit 8 |
| Broche 19 | D7 — Data output bit 7 |
| Broche 20 | D6 — Data output bit 6 |
| Broche 21 | D5 — Data output bit 5 |
| Broche 22 | D4 — Data output bit 4 |
| Broche 23 | D3 — Data output bit 3 |
| Broche 24 | D2 — Data output bit 2 |
| Broche 25 | D1 — Data output bit 1 |
| Broche 26 | D0 — Data output bit 0 (LSB) |
| Broche 27 | DVDD — Digital output supply |
| Broche 28 | DGND — Digital ground |
| Broche 29 | Pwrdwn — Power-down input (active high) |
| Broche 30 | NC — Not connected (per datasheet) |
| Broche 31 | NC — Not connected (per datasheet) |
| Broche 32 | NC — Not connected (per datasheet) |
| Broche 33 | NC — Not connected (per datasheet) |
| Broche 34 | NC — Not connected (per datasheet) |
| Broche 35 | AGND — Analog ground |
| Broche 36 | AVDD — Analog 1.8V supply |
| Broche 37 | NC — Not connected (per datasheet) |
| Broche 38 | NC — Not connected (per datasheet) |
| Broche 39 | NC — Not connected (per datasheet) |
| Broche 40 | NC — Not connected (per datasheet) |
| Broche 41 | NC — Not connected (per datasheet) |
| Broche 42 | NC — Not connected (per datasheet) |
| Broche 43 | NC — Not connected (per datasheet) |
| Broche 44 | AGND — Analog ground |
| Broche 45 | AVDD — Analog 1.8V supply |
| Broche 46 | AVDD — Analog 1.8V supply |
| Broche 47 | AGND — Analog ground |
| Broche 48 | AVDD — Analog 1.8V supply |
Applications typiques
ADS5103CPFBRG4 convient pour 6 applications: Portable Ultrasound Front-End, Digital Still Camera CCD/CIS Digitizer, DVB / Set-Top Box Baseband Digitizer, Handheld Instrumentation and Data Acquisition, Industrial Imaging and Machine Vision, Low-Power Medical Imaging Platform.
Portable Ultrasound Front-End
The ADS5103CPFBRG4's 10-bit resolution at 40 MSPS is a classic fit for portable ultrasound receive-channel digitization, where the probe's baseband signal is amplified by a time-gain-compensated LNA then AC-coupled into the ADC. Its 1.8 V single-supply operation simplifies the power tree, and the 1 Vp-p differential input pairs cleanly with a low-noise fully-differential driver such as the THS4520. The integrated power-down pin allows duty-cycled sampling to extend battery life between transmit pulses, a critical feature for handheld diagnostic probes. The 48-TQFP package footprint is large enough to allow clean analog/digital plane separation on the PCB.
Recommandé
Digital Still Camera CCD/CIS Digitizer
In a digital still camera, the ADS5103CPFBRG4 digitizes the analog output of a CCD or CMOS image sensor's analog front-end. The 40 MSPS sample rate is sufficient for VGA-to-3 megapixel sensors at typical pixel clock rates, and the 10-bit resolution captures the dynamic range required for sRGB color rendering. The single 1.8 V supply and small 7x7 mm TQFP package are well matched to the compact, battery-powered form factor of consumer cameras. The internal reference and integrated power-down pin further reduce BOM cost by eliminating external reference ICs and allowing low standby current between shots.
Recommandé
DVB / Set-Top Box Baseband Digitizer
The ADS5103CPFBRG4 is widely used in digital video broadcast (DVB) and cable set-top box baseband signal chains, where the IF output of the tuner is digitized for demodulation by a downstream DSP. At 40 MSPS, the converter provides ample oversampling for QAM and OFDM demodulators while keeping power consumption under 100 mW on a single 1.8 V rail. The 3.3 V-compatible CMOS output bus allows direct connection to legacy MPEG decoder ASICs without level shifters, simplifying board layout. The differential analog input rejects common-mode noise from the tuner module, improving carrier-to-noise ratio at the digital baseband output.
Recommandé
Handheld Instrumentation and Data Acquisition
Portable oscilloscopes, spectrum analyzers, and field data loggers benefit from the ADS5103CPFBRG4's combination of 10-bit resolution, 40 MSPS sample rate, and 1.8 V single-supply operation. The low power dissipation extends battery runtime in field-deployed instruments, while the 48-TQFP package is easy to reflow on multilayer FR-4 boards. The internal 1.25 V reference provides adequate accuracy for general-purpose measurement, and an external reference can be applied if calibration traceability is required. The CMOS parallel output interfaces directly to low-cost FPGAs such as the Lattice ECP5 or Xilinx Spartan-6 for real-time DSP.
Recommandé
Industrial Imaging and Machine Vision
In industrial machine vision systems, the ADS5103CPFBRG4 digitizes line-scan or area-scan camera analog outputs at up to 40 MSPS, providing 10-bit grayscale or color depth suitable for automated inspection, barcode reading, and pick-and-place alignment. The single 1.8 V supply integrates cleanly with 1.8 V image sensors, and the 48-TQFP footprint supports the compact camera-link form factors common in factory automation. The integrated power-down pin enables synchronous shutter capture with low standby current, reducing thermal load inside sealed industrial camera housings.
Recommandé
Low-Power Medical Imaging Platform
Beyond ultrasound, the ADS5103CPFBRG4 is used in low-power medical imaging front-ends such as pulse oximeter signal digitizers, digital stethoscope basebands, and portable ECG monitors. The 40 MSPS sample rate provides substantial oversampling for the relatively narrowband physiological signals (typically under 10 kHz), and the 1.8 V operation minimizes thermal dissipation on the patient's skin. The differential input rejects common-mode 50/60 Hz interference from the mains environment, improving signal-to-noise ratio in clinical settings. The integrated power-down pin supports duty-cycled sampling to extend battery life in wearable monitors.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ADS5103CPFBRG4 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ADS5103CPFBR | ADS5102IPFBR | ADS5102IPFBRG4 | ADS5102CPFBR | ADS5102CPFBRG4 |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 48-TQFP (PFB), 7x7 mm | 48-TQFP (PFB) - same | 48-TQFP (PFB) - same | 48-TQFP (PFB) - same | 48-TQFP (PFB) - same | 48-TQFP (PFB) - same |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit |
| Sampling Rate | 40 MSPS | 40 MSPS | 65 MSPS (+62.5%) | 65 MSPS | 65 MSPS | 65 MSPS |
| Analog Supply | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
| Temperature Grade | 0C to +70C (commercial) | 0C to +70C | -40C to +85C (industrial) | -40C to +85C | 0C to +70C | 0C to +70C |
| Reference | Internal 1.25V (ext option) | Internal 1.25V | Internal 1.25V | Internal 1.25V | Internal 1.25V | Internal 1.25V |
| Output Interface | 10-bit parallel CMOS | 10-bit parallel CMOS | 10-bit parallel CMOS | 10-bit parallel CMOS | 10-bit parallel CMOS | 10-bit parallel CMOS |
| Pin-to-Pin Compatible | Reference | Yes (exact) | Yes (same package) | Yes | Yes | Yes |
Principaux différenciateurs
- 1.8V single-supply operation with 3.3V-tolerant CMOS outputs (vs ADS5102IPFBR)
- Lower-cost commercial temperature grade (vs ADS5102IPFBR)
- Pin-to-pin drop-in compatibility across the entire ADS510x family (vs ADS5103CPFBR)
Notes de conception
Use a four-layer PCB with a dedicated ground plane on layer 2 directly under the ADC. Place input AC-coupling capacitors and termination resistors within 5 mm of the AINP/AINN pins. Route the analog input pair as a 100 Ω differential microstrip with matched length to within 0.5 mm to preserve common-mode rejection. Keep the 40 MSPS clock trace short and route it on the opposite side of the ground plane from the analog inputs to minimize digital coupling into the analog front-end.
Decouple each AVDD pin with a 0.1 µF X7R 0402 ceramic placed as close as possible to the pin, with a 10 µF bulk tantalum or ceramic at the supply entry point. Use a ferrite bead between the analog and digital 1.8 V rails to break high-frequency ground loops. The DVDD pin should be tied to the same 1.8 V as AVDD if no level-shifting to 3.3 V is required; otherwise, a separate 3.3 V rail with its own ferrite bead is recommended. Estimated: a 0.1 µF + 10 µF combo gives >40 dB of supply noise rejection at the 40 MHz clock fundamental.
The differential inputs MUST be driven by a true differential amplifier (e.g. THS4520, OPA1632). Single-ended drive with a resistor-divider bias will reduce SFDR by 10-15 dB and may violate the input common-mode range. The REFRES pin must be connected to AGND through a 10 kΩ resistor (not left floating) to set the internal reference bias current. Driving the Pwrdwn pin high before the AVDD rail has stabilized may cause latch-up; always sequence the 1.8 V rail before enabling the converter.
Informations de conformité
RoHS and Pb-free per TI product page (G4 suffix). Halogen-free per TI Green marking. Not AEC-Q100 qualified - this is a commercial-grade part. REACH compliance status is unknown from the provided data.