ADS5203IPFBG4 - Dual 10-Bit 40MSPS Low-Power ADC | TI
MPN: ADS5203IPFBG4 ✓ نشطADS5203IPFBG4 نظرة عامة
An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples continuous analog voltage waveforms and produces discrete digital codes proportional to the input amplitude. ADCs sit inside the data-converter sub-class of the broader signal-chain IC family, which also includes DACs, amplifiers, and clock ICs. Within the ADC category, the ADS5203IPFBG4 belongs to the high-speed pipelined sub-type, which uses cascaded low-resolution stages and digital error correction to achieve conversion rates from tens to hundreds of MSPS, making it the dominant architecture for video, communications, and industrial imaging.
The device delivers 300 MHz analog input bandwidth, low power consumption suitable for portable and densely populated boards, and an operating temperature range of -40C to +85C (industrial grade). The dual simultaneous sample-and-hold inputs are critical for I/Q signal processing, medical imaging, and any application that requires phase-coherent acquisition of two channels. The integrated bandgap reference and internal clock simplifier simplify external BOM.
Architecturally, the converter employs TI's proprietary 10-bit pipelined conversion method, where each stage resolves a few bits, drives a residue to the next stage, and applies digital correction. The 3.3 V single-supply operation is decoupled with a 10 uF bulk and 0.1 uF ceramic cap placed within 5 mm of the AVDD pins. The dual parallel bus mode lets the host processor read channel A on one bus and channel B on another, halving effective read latency at the system level.
Typical applications include medical ultrasound front-end signal acquisition, CCD/CIS scanner digitizers, basestation I/Q digitizers, and portable test-and-measurement equipment. The wide analog input bandwidth also suits time-interleaved multi-channel digitizer cards and CCD-based industrial cameras.
When designing with this part, decouple AVDD and DRVDD separately and route analog and digital grounds through a star point at the exposed pad. The pipelined architecture typically exhibits a 2.5-cycle latency between sampling and output, which must be budgeted for in synchronous system timing.
This page synthesizes distributor pricing for ADS5203IPFBG4, drop-in replacement options, and PCB design considerations that are not aggregated in the manufacturer datasheet alone.
بدائل مباشرة لـ ADS5203IPFBG4 — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع ADS5203IPFBG4 (نفس عامل الشكل والبصمة) — يختلف في Package, Operating Temperature, Input Type, Number of Channels, Output Interface.
ADS5203IPFB
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
ADS5203IPFBRG4
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ADS5103IPFBRG4
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ADS5103CPFBRG4
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ADS5103CPFBR
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ADS5102IPFBR
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ADS5203IPFBG4 الحدود القصوى والخصائص الكهربائية
| الدقة | 10 bits |
| Sample Rate | 40 MSPS per channel |
| Number of Channels | 2 (dual, simultaneous) |
| Architecture | Pipelined |
| جهد التغذية | 3.3 V single supply |
| Analog Input Bandwidth | 300 MHz |
| Input Type | Differential or single-ended |
| SNR | 60 dB at fIN = 10.5 MHz |
| SFDR | 73 dB at fIN = 10.5 MHz |
| Output Interface | Single or dual parallel bus |
| Sample-and-Hold | Dual simultaneous |
| درجة حرارة التشغيل | -40C to +85C |
| العلبة | 48-TQFP (7x7 mm) |
| نوع التركيب | Surface Mount |
| Temperature Grade | Industrial |
| Terminal Form | Gull wing |
| Number of Terminals | 48 |
| Package Code | TFQFP |
تكوين أطراف ADS5203IPFBG4
| دبوس 1 | AVDD — Analog supply voltage (3.3 V) |
| دبوس 2 | AINP — Channel A positive analog input |
| دبوس 3 | AINN — Channel A negative analog input |
| دبوس 4 | AGND — Analog ground |
| دبوس 5 | BINP — Channel B positive analog input |
| دبوس 6 | BINN — Channel B negative analog input |
| دبوس 7 | REFT — Top reference decoupling |
| دبوس 8 | REFB — Bottom reference decoupling |
| دبوس 9 | VREF — Reference voltage bypass |
| دبوس 10 | AGND — Analog ground |
| دبوس 11 | CLK — ADC sample clock input |
| دبوس 12 | CLKB — Complementary clock input |
| دبوس 13 | OE — Output enable (active low) |
| دبوس 14 | DRVDD — Digital output supply (3.3 V) |
| دبوس 15 | DRGND — Digital ground |
| دبوس 16 | D0A — Channel A data bit 0 (LSB) |
| دبوس 17 | D1A — Channel A data bit 1 |
| دبوس 18 | D2A — Channel A data bit 2 |
| دبوس 19 | D3A — Channel A data bit 3 |
| دبوس 20 | D4A — Channel A data bit 4 |
| دبوس 21 | D5A — Channel A data bit 5 |
| دبوس 22 | D6A — Channel A data bit 6 |
| دبوس 23 | D7A — Channel A data bit 7 |
| دبوس 24 | D8A — Channel A data bit 8 |
| دبوس 25 | D9A — Channel A data bit 9 (MSB) |
| دبوس 26 | DRGND — Digital ground |
| دبوس 27 | DRVDD — Digital output supply (3.3 V) |
| دبوس 28 | D0B — Channel B data bit 0 (LSB) |
| دبوس 29 | D1B — Channel B data bit 1 |
| دبوس 30 | D2B — Channel B data bit 2 |
| دبوس 31 | D3B — Channel B data bit 3 |
| دبوس 32 | D4B — Channel B data bit 4 |
| دبوس 33 | D5B — Channel B data bit 5 |
| دبوس 34 | D6B — Channel B data bit 6 |
| دبوس 35 | D7B — Channel B data bit 7 |
| دبوس 36 | D8B — Channel B data bit 8 |
| دبوس 37 | D9B — Channel B data bit 9 (MSB) |
| دبوس 38 | DRGND — Digital ground |
| دبوس 39 | PD — Power-down mode control |
| دبوس 40 | MODE — Output mode select (single/dual bus) |
| دبوس 41 | AVDD — Analog supply voltage (3.3 V) |
| دبوس 42 | AGND — Analog ground |
| دبوس 43 | BIASJ — Bias current setting |
| دبوس 44 | CM — Common-mode voltage bypass |
| دبوس 45 | REFCAP — Reference decoupling capacitor |
| دبوس 46 | RESET — Digital reset input |
| دبوس 47 | DRVDD — Digital output supply (3.3 V) |
| دبوس 48 | GND — Exposed pad / primary ground |
التطبيقات النموذجية
ADS5203IPFBG4 مناسب لـ 6 التطبيقs: Medical Ultrasound Front-End, CCD/CIS Scanner Digitizer, Basestation I/Q Digitizer, Industrial CCD Camera Imaging, Portable Test and Measurement, Communications IF Sampling.
Medical Ultrasound Front-End
The ADS5203IPFBG4 fits medical ultrasound front-end digitizers where two phase-coherent analog channels per transducer element must be sampled simultaneously. Its dual simultaneous sample-and-hold inputs preserve phase and amplitude alignment between the I and Q receive paths, and the 300 MHz analog input bandwidth handles the wideband echoes from broadband piezoelectric transducers. The 60 dB SNR at fIN = 10.5 MHz supports the dynamic range required for harmonic imaging modes. Place the ADC on a low-noise inner layer with split AVDD/DRVDD planes and decouple each rail with 10 uF bulk plus 0.1 uF ceramic caps within 5 mm of the supply pins.
موصى به
CCD/CIS Scanner Digitizer
The ADS5203IPFBG4 suits CCD and CIS (contact image sensor) scanner digitizers where color channels must be captured with tight channel-to-channel matching. The dual pipelined ADC lets the designer sample two color stripes per pixel clock, halving the analog front-end component count. The 3.3 V single-supply operation simplifies scanner power architecture, while the differential input mode rejects common-mode noise from the high-speed shift-register clocks. Use the dual parallel bus output mode to feed both channels directly into a single FPGA at half the per-channel latency.
موصى به
Basestation I/Q Digitizer
The ADS5203IPFBG4 is a strong fit for cellular base-station I/Q digitizers in receiver signal chains, where the I and Q baseband outputs of a quadrature demodulator must be captured with precise amplitude and phase balance. Its 10-bit resolution at 40 MSPS supports GSM/EDGE and early WCDMA receiver paths. The 73 dB SFDR at fIN = 10.5 MHz rejects out-of-band blocker distortion, and the 300 MHz analog input bandwidth enables direct IF sampling at low intermediate frequencies. Use a TCXO or OCXO reference to drive the ADC clock input for low-jitter sampling.
موصى به
Industrial CCD Camera Imaging
The ADS5203IPFBG4 supports industrial CCD-based machine-vision cameras where two synchronized analog video channels must be digitized at high throughput. The dual simultaneous sample-and-hold maintains pixel-to-pixel registration between adjacent sensor rows, critical for accurate line-scan measurements in factory automation. The 48-TQFP footprint integrates cleanly onto compact camera PCBs alongside the sensor, FPGA, and DRAM. The industrial -40C to +85C temperature grade supports factory floor deployments, and the low power dissipation simplifies sealed-enclosure thermal design.
موصى به
Portable Test and Measurement
The ADS5203IPFBG4 is well suited to portable two-channel oscilloscope and data-acquisition front-ends where dual simultaneous digitizing channels are required in a battery-powered form factor. The 3.3 V single-supply operation runs directly from Li-ion chemistry without complex regulator cascades. The 40 MSPS per channel rate handles audio-bandwidth and IF-bandwidth signal capture, and the differential input mode rejects ground bounce in mixed analog-digital portable enclosures. Low power dissipation extends battery runtime, and the 48-TQFP compact footprint preserves PCB real estate for the display, battery, and user interface.
موصى به
Communications IF Sampling
The ADS5203IPFBG4 fits communications IF-sampling receiver cards where analog signals at intermediate frequencies must be digitized directly without an analog downconversion stage. The 300 MHz input bandwidth supports undersampling of IF signals in the 70-150 MHz range, while the 73 dB SFDR keeps spur performance acceptable for narrowband channel extraction. Use a low-jitter clock oscillator to drive the ADC clock input, and decouple AVDD and DRVDD with separate ferrite beads to prevent digital switching noise from coupling into the analog input. The dual parallel bus mode allows the FPGA to process two IF channels independently in real time.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ ADS5203IPFBG4 — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | ADS5203IPFB | ADS5203IPFBRG4 | ADS5103IPFBRG4 | ADS5103CPFBRG4 | ADS5102IPFBR |
|---|---|---|---|---|---|---|
| Package | 48-TQFP (7x7) | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 10 bits | 10 bits | 10 bits | 10 bits | 10 bits | 10 bits |
| Channels | 2 (dual) | 2 (dual) | 2 (dual) | 2 (dual) | 2 (dual) | 2 (dual) |
| Supply Voltage | 3.3 V single | 3.3 V single | 3.3 V single | 3.3 V single | 3.3 V single | 3.3 V single |
| Temperature Grade | Industrial -40C to +85C | Industrial | Industrial | Industrial | Industrial | Industrial |
| Packaging Code | G4 (tube, lead-free) | non-G4 | RG4 (tape and reel) | RG4 (tape and reel) | RG4 (tape and reel) | non-G4 |
أبرز الفروقات
- Dual simultaneous sample-and-hold at 40 MSPS per channel (مقابلADS5203IPFB)
- 48-TQFP pin-compatible across the ADS5203 / ADS5103 family (مقابلADS5103IPFBRG4)
- 300 MHz analog input bandwidth supports undersampling (مقابلADS5102IPFBR)
ملاحظات التصميم
Decouple AVDD and DRVDD with separate ferrite beads or filter sections to prevent digital switching noise from coupling into the analog supply. Place a 10 uF bulk capacitor and a 0.1 uF ceramic bypass within 5 mm of each supply pin. The analog supply (AVDD) is the most noise-sensitive node and must use a low-noise LDO, not a switching regulator, for optimal SNR and SFDR performance.
Use a four-layer PCB with separate analog and digital ground planes joined at a single star point beneath the exposed pad (pin 48). Route analog input traces as differential pairs with controlled 100 ohm differential impedance, and keep them away from digital output bus traces to avoid coupling clock-related spurs into the analog front end. The exposed pad must be soldered to the analog ground plane for thermal dissipation and electrical reference.
Drive the CLK input with a low-jitter clock source (TCXO or OCXO); the SNR performance of the ADS5203IPFBG4 degrades proportionally to clock jitter, especially at high input frequencies. Keep the CLK trace short and impedance-controlled, and use complementary CLKB if available. For best SFDR, match the common-mode voltage of the analog input drive to the ADC internal common-mode reference (CM pin).
Do not exceed the absolute maximum analog input voltage; the differential input range is centered around the internal common-mode voltage. Always enable the internal reference (VREF) with the recommended bypass capacitor on REFCAP - omitting this degrades SNR and SFDR. The pipelined architecture introduces a fixed 2.5-clock-cycle latency between sampling and output, which must be budgeted in synchronous systems.
معلومات الامتثال
Lead-free per G4 finish suffix; RoHS compliant per TI product page. Not AEC-Q100 qualified - this is an industrial/consumer ADC, not an automotive grade part.
