IDTADC1210S105HN-C18 - 12-bit 105MSPS ADC, 40-VFQFPN | IDT/Renesas
MPN: IDTADC1210S105HN-C18 ✓ نشطIDTADC1210S105HN-C18 نظرة عامة
An Analog-to-Digital Converter (ADC) is a mixed-signal integrated circuit that converts real-world analog signals - typically voltage or current from sensors, antennas, or audio sources - into discrete digital codes that a microcontroller, DSP, or FPGA can process. ADCs sit within the broader data-acquisition signal chain: sensor -> signal conditioning -> ADC -> digital processor. High-speed pipelined ADCs like the ADC1210S use a multi-stage switched-capacitor architecture to balance conversion speed, resolution, and power dissipation.
Key features of this device include a flexible analog input range from 1 Vp-p to 2 Vp-p, selectable CMOS or LVDS DDR digital outputs, a serial peripheral interface (SPI) for configuration, an integrated duty-cycle stabilizer, and fast Out-of-Range (OTR) detection. Power consumption is 430 mW at 80 Msps from a single 3 V analog supply, with the 1.8 V digital supply independently adjustable for low-power digital interface modes. The device supports offset binary, two's complement, and gray code output formats.
The ADC1210S series uses a 12-bit pipelined core with a sample-and-hold front end that includes on-die ESD protection and matched input parasitics. The clock input is divided by 2 internally to relax source jitter requirements, while the duty-cycle stabilizer maintains sample-to-sample timing accuracy even with non-50% clock duty cycles. Output data is delivered as either parallel CMOS words or LVDS DDR pairs depending on system EMI and trace-length requirements.
Typical applications include wireless base-station receive IF digitizers, medical ultrasound beamformers, portable test-and-measurement instrumentation, software-defined radio front ends, and high-speed imaging digitizers. The wide 600 MHz input bandwidth makes the part particularly suited for undersampling IF signals in communications receivers where the ADC samples below the carrier frequency.
Designers should note that the exposed pad must be soldered to a continuous ground plane to achieve specified thermal performance (theta-JA depends on PCB copper area) and that the analog and digital supply domains require separate decoupling networks. The SPI register map controls output format, input full-scale range, and test patterns - consult the Renesas datasheet before committing to a PCB layout.
This page consolidates distributor pricing, pin-compatible drop-in alternatives, and practical design notes that go beyond the bare datasheet - giving engineers a faster path from evaluation to production.
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الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع IDTADC1210S105HN-C18 (نفس عامل الشكل والبصمة) — يختلف في Package, Resolution, RoHS Status, Input Type, Architecture.
IDTADC1210S065HN-C18
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←IDTADC1213S125HN-C1
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
IDTADC1213S080HN-C18
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
ADC1613S105HN-C18
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←IDTADC1206S040H-C18
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←IDTADC1210S105HN-C18 الحدود القصوى والخصائص الكهربائية
| الدقة | 12 bit |
| Sample Rate (this grade) | 105 Msps |
| Maximum Sample Rate (family) | 125 Msps |
| Number of Channels | 1 |
| Architecture | Pipelined |
| Analog Input Bandwidth | 600 MHz |
| SNR | 70 dBFS |
| SFDR | 86 dBc |
| Analog Supply Voltage (VDDA) | 3 V (typical) |
| Output Supply Voltage (VDDO) | 1.8 V (typical) |
| Analog Supply Range | 0.4 V to 3.9 V (absolute max) |
| Power Dissipation | 430 mW at 80 Msps |
| نطاق جهد الدخل | 1 Vp-p to 2 Vp-p (flexible) |
| Digital Output Format | CMOS or LVDS DDR |
| Output Coding | Offset binary, two's complement, gray code |
| Configuration Interface | SPI (Serial Peripheral Interface) |
| Clock Input Division | Divided by 2 internally |
| Duty Cycle Stabilizer | Integrated |
| Out-of-Range Detection | Fast OTR flag |
| العلبة | 40-VFQFPN Exposed Pad |
| Operating Temperature (Tamb) | -40 C to +85 C |
| Storage Temperature | -55 C to +125 C |
| Maximum Junction Temperature | 125 C |
| حالة RoHS | Compliant (per Renesas product page) |
تكوين أطراف IDTADC1210S105HN-C18
| دبوس 1 | VDD — Analog supply voltage (3 V typical) |
| دبوس 2 | IN+ — Differential analog input positive |
| دبوس 3 | IN- — Differential analog input negative |
| دبوس 4 | GND — Analog ground reference |
| دبوس 5 | REFT — Internal reference top decoupling |
| دبوس 6 | REFB — Internal reference bottom decoupling |
| دبوس 7 | CMO — Common-mode output for input drive |
| دبوس 8 | VCM — Input common-mode voltage bypass |
| دبوس 9 | CLK+ — Differential clock input positive |
| دبوس 10 | CLK- — Differential clock input negative |
| دبوس 11 | VDDO — Digital output supply voltage (1.8 V typical) |
| دبوس 12 | DGND — Digital ground |
| دبوس 13 | D11+/D11 — Bit 11 output (MSB, LVDS or CMOS) |
| دبوس 14 | D10+/D10 — Bit 10 output (LVDS or CMOS) |
| دبوس 15 | D9+/D9 — Bit 9 output (LVDS or CMOS) |
| دبوس 16 | D8+/D8 — Bit 8 output (LVDS or CMOS) |
| دبوس 17 | D7+/D7 — Bit 7 output (LVDS or CMOS) |
| دبوس 18 | D6+/D6 — Bit 6 output (LVDS or CMOS) |
| دبوس 19 | D5+/D5 — Bit 5 output (LVDS or CMOS) |
| دبوس 20 | D4+/D4 — Bit 4 output (LVDS or CMOS) |
| دبوس 21 | D3+/D3 — Bit 3 output (LVDS or CMOS) |
| دبوس 22 | D2+/D2 — Bit 2 output (LVDS or CMOS) |
| دبوس 23 | D1+/D1 — Bit 1 output (LVDS or CMOS) |
| دبوس 24 | D0+/D0 — Bit 0 output (LSB, LVDS or CMOS) |
| دبوس 25 | OTR — Out-of-Range indicator flag |
| دبوس 26 | DCLK+/DCLK — Data clock output (LVDS or CMOS) |
| دبوس 27 | SPI_CLK — SPI serial clock input |
| دبوس 28 | SPI_DOUT — SPI serial data output |
| دبوس 29 | SPI_DIN — SPI serial data input |
| دبوس 30 | SPI_CSN — SPI chip select (active low) |
| دبوس 31 | RESET — Hardware reset (active low) |
| دبوس 32 | PD — Power-down control input |
| دبوس 33 | MODE — Output mode select (CMOS/LVDS) |
| دبوس 34 | FSR — Full-scale range select |
| دبوس 35 | DCS — Duty-cycle stabilizer enable |
| دبوس 36 | NC — Not connected (per datasheet) |
| دبوس 37 | NC — Not connected (per datasheet) |
| دبوس 38 | NC — Not connected (per datasheet) |
| دبوس 39 | NC — Not connected (per datasheet) |
| دبوس 40 | EP — Exposed pad - thermal/ground connection |
التطبيقات النموذجية
IDTADC1210S105HN-C18 مناسب لـ 6 التطبيقs: Wireless Base-Station IF Digitizer, Medical Ultrasound Beamformer, Software-Defined Radio Front End, Test & Measurement Instrumentation, High-Speed Imaging Digitizer, Radar and Lidar Signal Acquisition.
Wireless Base-Station IF Digitizer
The IDTADC1210S105HN-C18 is well suited to digitizing the intermediate-frequency (IF) signal chain in 3G/4G/5G base-station receivers, where the 600 MHz analog input bandwidth enables direct undersampling of IF carriers well above the Nyquist limit. At 105 Msps with 70 dBFS SNR and 86 dBc SFDR, the part captures weak in-band signals while rejecting out-of-band blockers, directly improving receiver sensitivity. Designers typically place the ADC between the SAW filter and the baseband DSP/FPGA, driving the analog input with a differential amplifier or balun; the LVDS DDR output mode then minimizes EMI on the long trace to the FPGA. Compared to a higher-resolution 16-bit ADC, the 12-bit resolution is sufficient for cellular IF digitization and saves significant power.
موصى به
Medical Ultrasound Beamformer
In medical ultrasound imaging, the IDTADC1210S105HN-C18 digitizes the time-gained-compensated RF signal from each transducer channel, where 70 dBFS SNR and 86 dBc SFDR are essential for capturing subtle echo amplitude differences that translate to diagnostic image quality. The 105 Msps sample rate comfortably covers ultrasound bandwidths up to 50 MHz, while the 600 MHz input bandwidth supports harmonic imaging modes that use frequency doubling of the transmit signal. A typical ultrasound front-end places the ADC directly after the LNA and TGC amplifier, with the LVDS DDR outputs routed to a high-channel-count FPGA beamforming engine. Compared to 14/16-bit ADCs, the 12-bit resolution of this part is well matched to ultrasound's dynamic-range requirements and reduces per-channel power.
موصى به
Software-Defined Radio Front End
Software-defined radio (SDR) platforms use the IDTADC1210S105HN-C18 to digitize wideband RF signals directly, where the 600 MHz analog input bandwidth allows reception of HF, VHF, and low-UHF bands without an analog downconversion stage. At 105 Msps with 70 dBFS SNR, the part captures enough dynamic range for AM, FM, SSB, and basic digital modulation schemes such as APCO25 and DMR in a single direct-sampling architecture. The SPI interface lets the host FPGA dynamically retune the input full-scale range and output format, supporting multi-mode operation across bands. Compared to a narrowband IF-sampling ADC, this direct-RF approach eliminates mixers, LO synthesizers, and analog filters, dramatically reducing BOM count and PCB area in portable SDR designs.
موصى به
Test & Measurement Instrumentation
Portable oscilloscopes, spectrum analyzers, and signal-analyzer digitizer boards use the IDTADC1210S105HN-C18 in their input acquisition stage, where 70 dBFS SNR and 86 dBc SFDR directly determine measurement accuracy and spurious-tone visibility. The 105 Msps rate supports 50 MHz-class signal bandwidth with proper anti-alias filtering, sufficient for many mid-range oscilloscope and modular-instrument products. Engineers typically pair this ADC with an input-protection front end (attenuators, amplifiers) and route the LVDS DDR outputs to an FPGA for real-time FFT and triggering. Compared to a 10-bit or 8-bit ADC, the 12-bit resolution yields 12 dB better dynamic range per channel - critical for distinguishing small signals in the presence of large ones.
موصى به
High-Speed Imaging Digitizer
Industrial and scientific high-speed cameras use the IDTADC1210S105HN-C18 to digitize analog CCD/CIS sensor output streams at rates up to 105 Msps, enabling line-scan imaging at kilohertz frame rates for machine-vision inspection. The 12-bit resolution captures subtle intensity variations in scientific imaging applications, while the flexible 1 Vp-p to 2 Vp-p input range accommodates different sensor output levels without external gain stages. A typical camera-board design places the ADC immediately after the sensor amplifier, with CMOS output mode chosen for short board-trace distances to keep EMI low. Compared to 10-bit alternatives, this 12-bit part provides 4x more grayscale resolution, directly improving defect-detection accuracy in automated optical inspection systems.
موصى به
Radar and Lidar Signal Acquisition
Phased-array radar and pulsed-lidar systems use the IDTADC1210S105HN-C18 to digitize narrow IF pulses and baseband detector outputs, where the 600 MHz analog input bandwidth supports wideband linear-FM chirp demodulation and direct digitization of pre-amplified lidar return signals. At 105 Msps, the part captures IF bandwidths up to 50 MHz while the 12-bit resolution provides the dynamic range needed to detect small targets in clutter. The part's fast Out-of-Range (OTR) detection flag is critical for radar blanking, immediately indicating when a return exceeds the ADC's full-scale range to prevent downstream DSP saturation. Compared to a 14/16-bit ADC, the 12-bit resolution trades dynamic range for cost and power - acceptable for short-range automotive and industrial radar where target RCS spreads are limited.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ IDTADC1210S105HN-C18 — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | IDTADC1210S065HN-C18 | IDTADC1213S125HN-C1 | IDTADC1213S080HN-C18 | ADC1613S105HN-C18 | IDTADC1206S040H-C18 |
|---|---|---|---|---|---|---|
| Brand | Renesas Electronics (formerly IDT) | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 40-VFQFPN | 40-VFQFPN - same | 40-VFQFPN - same | 40-VFQFPN - same | 40-VFQFPN - same | 40-VFQFPN - same |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 16 bit | 12 bit |
| Sample Rate | 105 Msps | 65 Msps (-38%) | 125 Msps (+19%) | 80 Msps (-24%) | 105 Msps (same) | 40 Msps (-62%) |
أبرز الفروقات
- Up to 125 Msps family speed with 105 Msps production-grade speed bin (مقابلIDTADC1206S040H-C18)
- Selectable CMOS or LVDS DDR output in a single part (مقابلIDTADC1206S040H-C18)
- Integrated duty-cycle stabilizer and OTR detection (مقابلGeneric ADC1210 family ADC without DCS)
ملاحظات التصميم
The exposed pad (pin 40) on the 40-VFQFPN package MUST be soldered to a continuous ground plane that connects to both analog and digital grounds through a star-point or ferrite-bead isolation scheme. Estimated: without the EP soldered, thermal resistance exceeds 100 C/W and the junction will rapidly exceed 125 C at full 105 Msps operation. A minimum of 4 thermal vias (0.3 mm diameter) under the EP is recommended, with the via pattern stitching to the internal ground plane.
Use separate decoupling networks for VDDA (analog) and VDDO (digital) - a 10 uF bulk + 100 nF + 10 nF ceramic capacitor stack on each supply pin, placed as close to the package as possible (within 2 mm). Estimated: a single shared supply without separate decoupling will allow switching noise from the digital output stage to couple back into the analog input, degrading SNR by 3-5 dB. Place a ferrite bead between the analog and digital supply rails if they are sourced from the same LDO.
Differential analog inputs (IN+ and IN-) and differential clock inputs (CLK+ and CLK-) should be routed as 100 ohm differential transmission lines with matched length, sourced by a low-jitter clock generator and a differential-input amplifier respectively. Use the internal clock divider-by-2 (selectable via SPI) to relax source jitter - per the ADC1210S datasheet, this relaxes external clock jitter requirements by 2x. Enable the duty-cycle stabilizer (DCS) if the incoming clock has non-50% duty cycle.
Do not exceed the absolute maximum analog supply voltage of 3.9 V on VDDA, or 3.9 V on VDDO - both rails have identical 0.4 V to 3.9 V absolute ranges per the datasheet. The flexible analog input range of 1 Vp-p to 2 Vp-p is set via SPI registers, NOT by changing input termination; attempting to drive a 2 Vp-p signal into a 1 Vp-p-configured ADC will saturate the input. After reset, the SPI defaults must be reloaded before the OTR flag becomes valid.
معلومات الامتثال
RoHS and REACH compliance per Renesas (formerly IDT) product page. Not AEC-Q100 qualified - this part is intended for communications, instrumentation, and industrial applications rather than automotive. Lead-free and halogen-free per MSL marking on the VFQFPN package.
