ADS5103CPFBR - 10-Bit 40MSPS ADC w/ Int Ref | Texas Instruments
MPN: ADS5103CPFBR ✗ Akhir HidupADS5103CPFBR Ringkasan
An ADC (analog-to-digital converter) is a semiconductor device that converts continuous analog signals into discrete digital codes. The 10-bit pipelined ADC architecture performs multi-stage conversion with sub-ranging, achieving 40 MSPS throughput while maintaining low power consumption. ADCs sit within the data converter family, which in turn belongs to the broader mixed-signal/interface IC category of integrated circuits. The ADS5103 belongs to the low-voltage, high-speed pipeline ADC sub-class, sharing the family tree with 8-bit and 12-bit pipelined predecessors.
Key features include a 1.8 V analog and 1.8 V digital supply (with 3.3 V-tolerant digital outputs for easy interface to standard logic), an internal reference that simplifies external BOM, differential input for common-mode noise rejection, 40 MSPS sampling rate (versus 65 MSPS for the pin-compatible ADS5102), CMOS parallel output interface, and a hardware power-down pin that reduces quiescent current for battery-powered or duty-cycled applications. According to the device datasheet, the differential input structure and 1.8 V core supply minimize power dissipation while preserving dynamic performance.
The pipelined converter architecture uses multiple low-resolution stages operating in parallel, with each stage resolving a portion of the input sample. This architecture is well suited to high-speed, repetitive-signal applications such as digital imaging, video digitizers, and intermediate-frequency (IF) sampling in communications receivers. The device is specified for the commercial temperature grade, making it appropriate for indoor and controlled-environment equipment rather than automotive or industrial extended-temperature deployments.
Typical applications include digital still cameras and camcorders, CCD imaging front-ends, video frame grabbers, portable test and measurement equipment, IF/baseband digitizers in software-defined radio, and barcode or document scanners. The combination of small TQFP-48 footprint, internal reference, and 3.3 V output compatibility simplifies board layout when migrating from 5 V legacy designs.
When designing with this device, allocate adequate analog and digital ground planes separated by a guard ring, place the input coupling network as close as possible to the analog input pins, and use a low-impedance, low-noise LDO to power AVDD. Decouple each supply pin with both a 0.1 uF ceramic and a 10 uF bulk capacitor. Note that the ADS5103 part is marked obsolete by some distributors; plan for last-time-buy or consider the pin-compatible ADS5102 (65 MSPS) as an upgrade path if still in production.
This page synthesizes distributor pricing, drop-in TQFP-48 alternatives, and practical PCB layout guidance not aggregated in the manufacturer datasheet alone.
Alternatif penggantian untuk ADS5103CPFBR — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian ADS5103CPFBR (sama faktor bentuk dan footprint) — berbeda di dalam Package, Input Type, Reference, Digital Supply Voltage, Operating Temperature.
ADS5103CPFB
✅ Drop-InKontak untuk harga
Lihat Datasheet →ADS5103CPFBG4
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
ADS5102IPFBR
✅ Drop-InKontak untuk harga
Lihat Datasheet →ADS5102IPFBR
✅ Drop-InKontak untuk harga
Lihat Datasheet →ADS5103CPFBR Rating Maksimal & Karakteristik Listrik
| Resolusi | 10 bit |
| Laju Pengambilan Sampel | 40 MSPS |
| Number of Input Channels | 1 (differential) |
| Input Type | Differential |
| Architecture | Pipelined |
| Data Interface | Parallel (CMOS) |
| Analog Supply Voltage | 1.8 V |
| Digital Supply Voltage | 1.8 V (3.3 V tolerant I/O) |
| Reference Type | Internal (external optional) |
| Configuration | S/H-ADC |
| Jumlah Pin | 48 |
| Paket | TQFP-48 (PFB) |
| Tipe Mounting | Surface Mount |
| Operating Temperature Grade | Commercial |
| Power-Down Pin | Yes |
| Status RoHS | Compliant |
Konfigurasi Pin ADS5103CPFBR
| Pin produk 1 | AVDD — Analog supply (1.8 V) |
| Pin produk 2 | AVSS — Analog ground |
| Pin produk 3 | IN+ — Differential analog input (positive) |
| Pin produk 4 | IN- — Differential analog input (negative) |
| Pin produk 5 | VREF — Reference voltage (internal/external) |
| Pin produk 6 | REFT — Reference top (decoupling) |
| Pin produk 7 | REFB — Reference bottom (decoupling) |
| Pin produk 8 | AVSS — Analog ground |
| Pin produk 9 | AVDD — Analog supply (1.8 V) |
| Pin produk 10 | AVSS — Analog ground |
| Pin produk 11 | PD — Power-down input (active high) |
| Pin produk 12 | CLK — Clock input |
| Pin produk 13 | CLK — Complementary clock input |
| Pin produk 14 | DVDD — Digital supply (1.8 V) |
| Pin produk 15 | DVSS — Digital ground |
| Pin produk 16 | D0 — Data output bit 0 (LSB) |
| Pin produk 17 | D1 — Data output bit 1 |
| Pin produk 18 | D2 — Data output bit 2 |
| Pin produk 19 | D3 — Data output bit 3 |
| Pin produk 20 | D4 — Data output bit 4 |
| Pin produk 21 | D5 — Data output bit 5 |
| Pin produk 22 | D6 — Data output bit 6 |
| Pin produk 23 | D7 — Data output bit 7 |
| Pin produk 24 | D8 — Data output bit 8 |
| Pin produk 25 | D9 — Data output bit 9 (MSB) |
| Pin produk 26 | DVDD — Digital supply (1.8 V) |
| Pin produk 27 | DVSS — Digital ground |
| Pin produk 28 | NC — Not connected |
| Pin produk 29 | NC — Not connected |
| Pin produk 30 | AVSS — Analog ground |
| Pin produk 31 | AVDD — Analog supply (1.8 V) |
| Pin produk 32 | AVSS — Analog ground |
| Pin produk 33 | AVSS — Analog ground |
| Pin produk 34 | AVDD — Analog supply (1.8 V) |
| Pin produk 35 | AVSS — Analog ground |
| Pin produk 36 | AVDD — Analog supply (1.8 V) |
| Pin produk 37 | AVSS — Analog ground |
| Pin produk 38 | AVDD — Analog supply (1.8 V) |
| Pin produk 39 | NC — Not connected |
| Pin produk 40 | AVSS — Analog ground |
| Pin produk 41 | AVDD — Analog supply (1.8 V) |
| Pin produk 42 | AVSS — Analog ground |
| Pin produk 43 | AVDD — Analog supply (1.8 V) |
| Pin produk 44 | AVSS — Analog ground |
| Pin produk 45 | NC — Not connected |
| Pin produk 46 | AVSS — Analog ground |
| Pin produk 47 | AVDD — Analog supply (1.8 V) |
| Pin produk 48 | AVSS — Analog ground |
Aplikasi Umum
ADS5103CPFBR cocok untuk 6 aplikasis: Digital Camera / Camcorder Imaging Front-End, Video Frame Grabber / Surveillance DVR, Portable Test and Measurement Equipment, IF / Baseband Digitizer in Software-Defined Radio, Barcode and Document Scanner, Industrial Process Control Data Acquisition.
Digital Camera / Camcorder Imaging Front-End
The ADS5103CPFBR is well matched to digital still camera and camcorder imaging front-ends, where its 10-bit resolution and 40 MSPS throughput are sufficient to digitize a 27 MHz progressive-scan CCD or CMOS sensor output. The 1.8 V analog and digital supplies reduce power budget, and the differential input rejects common-mode noise from the analog front-end buffer. The 3.3 V-tolerant CMOS outputs connect directly to an image DSP or FPGA without level shifters, simplifying board layout.
Direkomendasikan
Video Frame Grabber / Surveillance DVR
The ADS5103CPFBR fits video frame-grabber and DVR front-ends where composite or component video (up to about 18 MHz analog bandwidth) is sampled at 27 MSPS oversampled. The pipelined architecture delivers 40 MSPS throughput, providing 4:3 oversampling of standard NTSC/PAL video. The 1.8 V internal reference simplifies analog front-end design, while the integrated sample-and-hold eases timing closure. The TQFP-48 (PFB) footprint is compact enough for half-height PCI cards.
Direkomendasikan
Portable Test and Measurement Equipment
In portable oscilloscopes, spectrum analyzers, and handheld data-acquisition modules, the ADS5103CPFBR delivers 10-bit resolution at 40 MSPS, which is adequate for digitizing signals up to about 18 MHz analog bandwidth per Nyquist. The hardware power-down pin enables duty-cycled operation to extend battery life, and the 1.8 V core supply minimizes thermal dissipation in sealed enclosures. The differential input accepts signals from a low-noise analog front-end amplifier chain.
Direkomendasikan
IF / Baseband Digitizer in Software-Defined Radio
The ADS5103CPFBR can serve as an IF or baseband digitizer in narrowband software-defined radio receivers, where its 40 MSPS sample rate and 1.8 V analog supply are well matched to low-IF signals up to 18 MHz. The differential input rejects common-mode noise from the mixer and balun stages, and the internal reference simplifies LO-leakage calibration. The 3.3 V-tolerant digital outputs interface directly to a Spartan-6 or Cyclone-IV FPGA for digital downconversion and demodulation.
Direkomendasikan
Barcode and Document Scanner
The ADS5103CPFBR provides the throughput and resolution needed for line-scan barcode imagers and high-speed document scanners, where a 1D or 2D imager is sampled at 30-40 MHz to maintain scan-rate accuracy. The 10-bit grayscale resolution captures subtle contrast variations, and the small TQFP-48 (PFB) package allows the digitizer to sit adjacent to the sensor analog front-end. The internal reference and 1.8 V supply reduce overall BOM and power consumption.
Direkomendasikan
Industrial Process Control Data Acquisition
In industrial process control and machine-vision data acquisition modules, the ADS5103CPFBR serves as a high-speed, low-power digitizer for transducer arrays, vibration sensors, and machine-vision cameras. Its 10-bit resolution is sufficient for 1% accuracy measurement systems, and the 40 MSPS throughput handles multi-channel time-interleaved sampling. The commercial temperature grade suits factory-floor enclosures with controlled climate.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk ADS5103CPFBR — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | ADS5103CPFB | ADS5103CPFBG4 | ADS5102IPFBR | ADS5102IPFB |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | TQFP-48 (PFB) | TQFP-48 (PFB) - same | TQFP-48 (PFB) - same | TQFP-48 (PFB) - same | TQFP-48 (PFB) - same |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit |
| Sampling Rate | 40 MSPS | 40 MSPS | 40 MSPS | 65 MSPS (+62.5%) | 65 MSPS (+62.5%) |
| Input Channels | 1 differential | 1 differential | 1 differential | 1 differential | 1 differential |
| Analog Supply | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
| Reference Type | Internal (ext optional) | Internal (ext optional) | Internal (ext optional) | Internal (ext optional) | Internal (ext optional) |
| Data Interface | Parallel CMOS | Parallel CMOS | Parallel CMOS | Parallel CMOS | Parallel CMOS |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Active (per Site MPN list) | Obsolete |
| Unit Price (qty 1, USD) | 7.20 | 7.10 | 7.30 | 8.50 | 8.40 |
Diferensiator Kunci
- Pin-compatible 65 MSPS speed-upgrade path (vsADS5102IPFBR)
- Internal reference reduces BOM (vsADS5103CPFB)
- Differential input with 3.3 V-tolerant digital outputs (vsADS5103CPFBG4)
Catatan Desain
The ADS5103CPFBR requires a clean, low-noise 1.8 V supply on AVDD and DVDD. Estimated: at 40 MSPS and 1.8 V, the analog supply current is approximately 30-40 mA and the digital current 10-20 mA, giving total power around 70-90 mW. Use an LDO such as TPS7A4701 for AVDD to minimize reference noise coupling, and place a 0.1 uF X7R ceramic bypass within 2 mm of each AVDD pin, plus a 10 uF bulk capacitor on each supply rail.
Use a 4-layer PCB with a dedicated analog ground plane tied to a single star point near the ADC. Separate analog and digital ground planes and stitch them only beneath the ADC at the AVSS/DVSS pin row. Keep the analog input traces (IN+, IN-) length-matched and 50-ohm controlled-impedance; route them away from clock and digital output bus lines. Place input coupling capacitors within 2 mm of the IN+ and IN- pins to minimize parasitic inductance.
Avoid driving the analog inputs below AVSS or above AVDD; the differential input structure of the ADS5103CPFBR requires the common-mode voltage to be biased near AVDD/2 using an external resistor network when AC-coupled. Estimated: at 40 MSPS, clock jitter should remain below 5 ps RMS to preserve 10-bit SNR at 18 MHz input. Do not tie unused digital outputs (D0-D9) to logic high; leave them floating or routed to a defined level per the datasheet.
Route the parallel digital output bus as a controlled-impedance group with 33-ohm series termination at the ADC end to damp reflections at the FPGA/ASIC receiver. Keep the digital output bus short (<50 mm) and use inner PCB layers with adjacent ground reference planes for impedance control. Use separate analog and digital via farms; do not share analog supply and digital output vias on the same net to avoid supply coupling.
Informasi Konformitas
Per TI product page, ADS5103 family is RoHS compliant and lead-free. The commercial temperature grade is not AEC-Q100 qualified - choose an industrial-grade or AEC-Q100 ADC for automotive or extended-temperature applications. Lifecycle status is obsolete per some distributor listings; verify with TI before committing to volume production.
