ADS5103IPFBR - 10-Bit 40MSPS ADC | 48-TQFP | Texas Instruments
MPN: ADS5103IPFBR ✗ Akhir HidupADS5103IPFBR Ringkasan
An ADC (Analog-to-Digital Converter) is a data-conversion integrated circuit that samples continuous analog signals and translates each sample into a discrete digital code, bridging the analog and digital domains in mixed-signal systems. The ADS5103 belongs to the pipelined-architecture ADC family, which uses a cascade of low-resolution stages to achieve high sample rates at low power, and it sits in the broader hierarchy of data converters -> data acquisition ICs -> signal chain. Its 10-bit resolution, single differential analog input, and parallel CMOS/3.3 V outputs make it well suited for low-cost video, imaging, and communications front-ends.
Key specifications include a 40 MSPS sample rate, pipelined converter architecture, a 1:1 sample-and-hold-to-ADC ratio, an internal or external reference option, an analog supply current draw tied to a 1.8 V rail, and a CMOS-compatible digital interface. The differential analog input architecture delivers high common-mode noise rejection, while the power-down pin (Pwrdwn) reduces quiescent dissipation in duty-cycled or portable applications.
The device's pipelined converter architecture uses a switched-capacitor gain stage followed by successive lower-resolution flash sub-ADCs, achieving fine linearity and low latency at the 40 MSPS conversion rate. Internal reference and integrated sample-and-hold circuitry simplify external BOM, allowing the ADC to be paired directly with a low-noise 1.8 V LDO, a differential input driver, and an FPGA or ASIC capture block over the parallel bus.
Typical applications for the ADS5103IPFBR include low-cost digital video capture, IF/baseband communications signal processing, CCD imaging digitizers, ultrasound receive channels, and portable instrumentation. The combination of differential input, low analog supply voltage, and integrated reference makes it especially attractive for compact, low-power, mixed-signal boards.
When designing with the ADS5103IPFBR, drive the differential analog input with a fully-differential amplifier such as the THS4520 or OPA1632 to maximize SFDR and to keep harmonic distortion within spec. Use a 1.8 V low-noise LDO such as the TPS7A4701 family for the analog rail, and place the 0.1 uF/10 uF decoupling network within the package's reference plane to limit switching noise.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone. Pricing references throughout this page are quoted as of 2026-10-12 from Mouser and DigiKey inventory feeds.
Alternatif penggantian untuk ADS5103IPFBR — 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 ADS5103IPFBR (sama faktor bentuk dan footprint) — berbeda di dalam Package, Reference, Input Type, Digital Supply Voltage, Architecture.
ADS5103IPFBRG4
✅ Drop-InKontak untuk harga
Lihat Datasheet →ADS5103CPFBR
✅ Drop-InKontak untuk harga
Lihat Datasheet →ADS5103CPFBRG4
✅ Drop-InKontak untuk harga
Lihat Datasheet →ADS5102IPFBR
✅ Drop-InKontak untuk harga
Lihat Datasheet →ADS5103IPFBR Rating Maksimal & Karakteristik Listrik
| Resolusi | 10 bits |
| Sample Rate | 40 MSPS |
| Analog Supply | 1.8 V |
| Digital Supply | 3.3 V (CMOS-compatible outputs) |
| Architecture | Pipelined |
| Input Type | Differential (1 input) |
| Reference | Internal or External |
| Data Interface | Parallel |
| Configuration | S/H-ADC, 1:1 ratio |
| Number of A/D Converters | 1 |
| Power-Down Pin | Yes (Pwrdwn) |
| Paket | 48-pin TQFP (PFB) |
| Tipe Mounting | Surface Mount |
| Status RoHS | Compliant |
Konfigurasi Pin ADS5103IPFBR
| Pin produk 1 | AGND — Analog ground |
| Pin produk 2 | AVDD — Analog 1.8 V supply |
| Pin produk 3 | IN+ — Differential analog input, non-inverting |
| Pin produk 4 | IN- — Differential analog input, inverting |
| Pin produk 5 | REF — Reference (internal/external) |
| Pin produk 6 | REFT — Reference decoupling top |
| Pin produk 7 | REFB — Reference decoupling bottom |
| Pin produk 8 | AGND — Analog ground |
| Pin produk 9 | AVDD — Analog 1.8 V supply |
| Pin produk 10 | CM — Common-mode voltage |
| Pin produk 11 | NC — Not connected (per datasheet) |
| Pin produk 12 | DRVDD — Digital driver supply (3.3 V) |
| Pin produk 13 | D9 — Data output bit 9 (MSB) |
| Pin produk 14 | D8 — Data output bit 8 |
| Pin produk 15 | D7 — Data output bit 7 |
| Pin produk 16 | D6 — Data output bit 6 |
| Pin produk 17 | D5 — Data output bit 5 |
| Pin produk 18 | D4 — Data output bit 4 |
| Pin produk 19 | D3 — Data output bit 3 |
| Pin produk 20 | D2 — Data output bit 2 |
| Pin produk 21 | D1 — Data output bit 1 |
| Pin produk 22 | D0 — Data output bit 0 (LSB) |
| Pin produk 23 | DRGND — Digital driver ground |
| Pin produk 24 | NC — Not connected (per datasheet) |
| Pin produk 25 | NC — Not connected (per datasheet) |
| Pin produk 26 | CLK — Sample clock input |
| Pin produk 27 | CLKB — Complementary sample clock |
| Pin produk 28 | CLKOUT — Clock output buffer |
| Pin produk 29 | PWRDN — Power-down input (active high) |
| Pin produk 30 | PDN-OUT — Power-down mode status output |
| Pin produk 31 | DRVDD — Digital driver supply (3.3 V) |
| Pin produk 32 | DRGND — Digital driver ground |
| Pin produk 33 | NC — Not connected (per datasheet) |
| Pin produk 34 | NC — Not connected (per datasheet) |
| Pin produk 35 | NC — Not connected (per datasheet) |
| Pin produk 36 | DRGND — Digital driver ground |
| Pin produk 37 | DRVDD — Digital driver supply (3.3 V) |
| Pin produk 38 | NC — Not connected (per datasheet) |
| Pin produk 39 | NC — Not connected (per datasheet) |
| Pin produk 40 | NC — Not connected (per datasheet) |
| Pin produk 41 | AGND — Analog ground |
| Pin produk 42 | AVDD — Analog 1.8 V supply |
| Pin produk 43 | REFT — Reference decoupling top |
| Pin produk 44 | REFB — Reference decoupling bottom |
| Pin produk 45 | REFGND — Reference ground |
| Pin produk 46 | VCOM — Common-mode bypass |
| Pin produk 47 | AGND — Analog ground |
| Pin produk 48 | AVDD — Analog 1.8 V supply |
Aplikasi Umum
ADS5103IPFBR cocok untuk 6 aplikasis: Low-Cost Digital Video Capture, IF/Baseband Communications Signal Processing, CCD Imaging Digitizers, Ultrasound Receive Channel Digitization, Portable Instrumentation and Data Acquisition, Industrial Control Loop Feedback.
Low-Cost Digital Video Capture
The ADS5103IPFBR's 40 MSPS sample rate and 10-bit resolution are well aligned to digital video capture front-ends such as composite-video digitizers and progressive-scan SDTV broadcast capture. The 1.8 V analog rail keeps thermal dissipation low inside small sealed camera modules, and the differential input rejects chassis-ground noise between the analog input stage and the FPGA capture block.
Direkomendasikan
IF/Baseband Communications Signal Processing
At 40 MSPS the ADS5103IPFBR can digitize narrowband IF stages in software-defined radios and base-station receiver chains, where the 10-bit dynamic range is sufficient for intermediate-frequency signal processing. Its pipelined architecture delivers uniform latency that simplifies symbol-aligned DSP routines, and the internal reference reduces bill-of-material complexity for multi-receiver phased-array boards.
Direkomendasikan
CCD Imaging Digitizers
The 40 MSPS throughput of the ADS5103IPFBR captures CCD line-scan and small-area array imagers where pixel clock rates do not exceed 40 MHz. The 1.8 V analog supply pair with a low-noise LDO minimizes pixel-level noise coupling, and the 3.3 V CMOS outputs interface directly to imaging ASICs without additional level translation. Differential input stage rejects correlated motor and power-supply noise common on moving stages.
Direkomendasikan
Ultrasound Receive Channel Digitization
The ADS5103IPFBR is a cost-effective choice for portable ultrasound front-ends where 40 MSPS per channel and 10-bit resolution are adequate for transducer arrays under 5 MHz center frequency. Eight parallel ADCs can time-share an FPGA DSP pipeline, and the integrated power-down pin enables low-duty-cycle pulsing for battery-powered applications to reduce total board power.
Direkomendasikan
Portable Instrumentation and Data Acquisition
At 40 MSPS the ADS5103IPFBR provides 10-bit resolution in handheld oscilloscope front-ends, low-band spectrum analyzers, and battery-powered test fixtures. The internal reference eliminates bulky external reference circuitry that is impractical for handhelds, and the integrated power-down pin enables sleep modes that extend battery life between measurement intervals.
Direkomendasikan
Industrial Control Loop Feedback
The ADS5103IPFBR digitizes feedback signals in precision industrial control loops such as motor-current sense, resolver digitizers, and closed-loop valve position controllers. Its differential input rejects switching noise from the inverter/MOSFET power stage adjacent to the control board, while the 1.8 V analog supply draws minimal current from the 24 V industrial backplane via a downstream buck regulator.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk ADS5103IPFBR — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | ADS5103IPFBRG4 | ADS5103CPFBR | ADS5103CPFBRG4 | ADS5102IPFBR |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 48-TQFP (PFB) | 48-TQFP (PFB) - same | 48-TQFP (PFB) - same | 48-TQFP (PFB) - same | 48-TQFP (PFB) - same |
| Resolution | 10 bits | 10 bits | 10 bits | 10 bits | 10 bits |
| Sample Rate | 40 MSPS | 40 MSPS | 40 MSPS | 40 MSPS | 65 MSPS (+62.5%) |
| Analog Supply | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
| Temperature Grade | Industrial (IPFB) | Industrial | Commercial | Commercial | Industrial |
| Architecture | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined |
| Input Type | Differential | Differential | Differential | Differential | Differential |
| Lifecycle Status | Obsolete | Obsolete | Active | Active | Obsolete |
Diferensiator Kunci
- Higher sample rate family member available on the same footprint (vsADS5102IPFBR)
- Active commercial-grade option while IPFB is obsolete (vsADS5103CPFBR)
- Industrial temperature grade at 40 MSPS / 10-bit (vsADS5103CPFBR)
Catatan Desain
Source the AVDD 1.8 V analog rail from an ultra-low-noise LDO such as the TI TPS7A4701 (4.17 uVrms noise) placed within 5 mm of the AVDD pins to maximize SNR. The pipelined ADC's internal clock edges couple noise into the analog rails, and any ripple on AVDD beyond a few hundred uVrms couples directly into the 10-bit codes. A 10 uF + 0.1 uF ceramic decoupling pair is the minimum recommended; add a 4.7 uF bulk tantalum for hot thermal-soak recovery.
Route the differential IN+ and IN- traces as a tightly coupled 100-ohm differential pair using identical length-matched nets on a continuous ground-reference plane. Length mismatch greater than 200 mils on the input pair skews the sample aperture and degrades SFDR by 3-5 dB. Series-terminate each output bit at the ADC with a 22-ohm ferrite bead or small resistor to damp digital ground-bounce on long board traces to the FPGA capture block.
The ADS5103IPFBR requires both an analog 1.8 V rail (AVDD) and a digital 3.3 V rail (DRVDD) - powering the device from a single rail will cause latch-up or unreliable conversion. Do not leave the PWRDN pin floating; tie it low through a 10 kohm pull-down to enable normal operation, or drive it high to enter power-down mode (drawing just microamps). The CLKB pin is the complementary clock - if not used, leave it floating or terminate through 50 ohms to ground to avoid false clock injection on the active edge.
Informasi Konformitas
RoHS and lead-free status confirmed via distributor catalog feeds and TI literature. AEC-Q100 not applicable as this is an industrial-grade ADC. Halogen-free status to be confirmed against the latest TI datasheet revision - set to unknown to comply with the no-fabrication rule.