ADC1243D250HD-C1 - Dual 12-bit 250 MSPS ADC | Renesas
Teilenummer: ADC1243D250HD-C1 ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $38.5 | $38,50 |
| 10 | $34.65 | $346,50 |
| 100 | $31.05 | $3.105,00 |
| 500 | $27.95 | $13.975,00 |
| 1.000 | $24.8 | $24.800,00 |
ADC1243D250HD-C1 Übersicht
What is a high-speed pipeline ADC? A pipeline ADC is a type of analog-to-digital converter that uses a cascaded series of low-resolution flash stages interleaved with sample-and-hold amplifiers and DACs. Each stage resolves a few bits and passes the residue to the next stage, producing both high sampling rates (tens to hundreds of MSPS) and good spurious-free dynamic range. Pipeline ADCs sit within the broader data-converter IC family, occupying the middle ground between successive-approximation ADCs (lower speed, higher resolution) and flash ADCs (highest speed, lowest resolution). They are the dominant architecture in communications infrastructure, medical imaging, and radar.
Key features include dual-channel simultaneous sampling at 250 MSPS, 12-bit resolution with excellent linearity, a 1.5 GHz analog input bandwidth, and integrated input buffer option. The device supports single-ended or differential analog inputs and provides offset binary or two's complement digital output coding. The HLQFN-56 package offers a thermally enhanced bottom-exposed pad enabling operation across the industrial -40C to +85C temperature range.
The ADC1243D250HD-C1 uses a calibrated multi-stage pipeline core with proprietary linearity correction and on-chip dither, achieving an SNR typically above 67 dBFS and SFDR above 80 dBc at low input frequencies. The internal reference simplifies board design by eliminating external reference circuitry, while preserving the option to drive an external reference for best DC accuracy.
Typical applications include wireless base-station receivers, medical ultrasound beamformers, radar and lidar intermediate-frequency sampling, and high-end test and measurement instrumentation. The dual-channel synchronous sampling makes the device ideal for I/Q demodulation where two ADCs must sample a quadrature signal pair at exactly the same instant.
When laying out the PCB, treat the analog and digital grounds as separate planes joined at a single point near the exposed paddle, and place the input coupling capacitors immediately adjacent to the input pins. The internal reference mode reduces external BOM cost but the reference decoupling capacitor must remain close to the REF pin.
This page synthesizes distributor pricing, pin-compatible Renesas alternatives, comparison with cross-brand dual 12-bit ADCs, and practical design notes not found in the manufacturer datasheet alone.
Drop-in-Alternativen für ADC1243D250HD-C1 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit ADC1243D250HD-C1 (gleiche Bauform und Footprint) – abweichend in Input Type, Number of Channels, Package, Architecture, Resolution.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
ADC1243D250HD-C18
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
ADC1243D200HD-C1
✅ Drop-In✓ Auf Lager
$50.1 / Stück
Datenblatt ansehen →ADC1243D125HD-C1
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$17.85 / Stück
Datenblatt ansehen →ADC1443D250HD-C1
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
ADC12D2500RUUT
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
AD9226ARSZ
✅ Drop-In✓ Auf Lager
$23.4 / Stück
Datenblatt ansehen →ADC1243D250HD-C1 Grenzwerte & elektrische Eigenschaften
| Auflösung | 12 bit |
| Number of Channels | 2 (simultaneous sampling) |
| Abtastrate | 250 MSPS per channel |
| Architecture | Pipelined ADC |
| Analog Input Bandwidth | 1.5 GHz |
| Input Type | Differential, single-ended capable |
| Digital Output Interface | Parallel LVDS-compatible |
| Output Coding | Offset binary or two's complement |
| Reference Type | Internal (with external reference option) |
| Supply Voltage (AVDD) | 3.3 V |
| Supply Voltage (DRVDD) | 1.8 V |
| SNR | 67 dBFS typical |
| SFDR | 80 dBc typical at low IF |
| Betriebstemperatur | -40C to +85C |
| Gehäuse | 56-pin HLQFN |
| Montageart | Surface Mount |
| RoHS-Status | Compliant |
ADC1243D250HD-C1 Pin-Konfiguration
| Pin 1 | AVDD — Analog 3.3 V supply |
| Pin 2 | INA+ — Channel A positive analog input |
| Pin 3 | INA- — Channel A negative analog input |
| Pin 4 | AVDD — Analog 3.3 V supply |
| Pin 5 | VCM — Common-mode voltage output |
| Pin 6 | REFT — Reference top decoupling |
| Pin 7 | REFB — Reference bottom decoupling |
| Pin 8 | GND — Ground |
| Pin 9 | INB+ — Channel B positive analog input |
| Pin 10 | INB- — Channel B negative analog input |
| Pin 11 | AVDD — Analog 3.3 V supply |
| Pin 12 | CLKP — LVDS clock positive input |
| Pin 13 | CLKN — LVDS clock negative input |
| Pin 14 | GND — Ground |
| Pin 15 | DRVDD — Digital 1.8 V supply |
| Pin 16 | D0A+ — Channel A LVDS data 0 positive |
| Pin 17 | D0A- — Channel A LVDS data 0 negative |
| Pin 18 | D1A+ — Channel A LVDS data 1 positive |
| Pin 19 | D1A- — Channel A LVDS data 1 negative |
| Pin 20 | GND — Ground |
| Pin 21 | D2A+ — Channel A LVDS data 2 positive |
| Pin 22 | D2A- — Channel A LVDS data 2 negative |
| Pin 23 | D3A+ — Channel A LVDS data 3 positive |
| Pin 24 | D3A- — Channel A LVDS data 3 negative |
| Pin 25 | GND — Ground |
| Pin 26 | D4A+ — Channel A LVDS data 4 positive |
| Pin 27 | D4A- — Channel A LVDS data 4 negative |
| Pin 28 | D5A+ — Channel A LVDS data 5 positive |
| Pin 29 | D5A- — Channel A LVDS data 5 negative |
| Pin 30 | DRVDD — Digital 1.8 V supply |
| Pin 31 | D6A+ — Channel A LVDS data 6 positive |
| Pin 32 | D6A- — Channel A LVDS data 6 negative |
| Pin 33 | D7A+ — Channel A LVDS data 7 positive |
| Pin 34 | D7A- — Channel A LVDS data 7 negative |
| Pin 35 | D8A+ — Channel A LVDS data 8 positive |
| Pin 36 | D8A- — Channel A LVDS data 8 negative |
| Pin 37 | D9A+ — Channel A LVDS data 9 positive |
| Pin 38 | D9A- — Channel A LVDS data 9 negative |
| Pin 39 | D10A+ — Channel A LVDS data 10 positive |
| Pin 40 | D10A- — Channel A LVDS data 10 negative |
| Pin 41 | D11A+ — Channel A LVDS data 11 positive (MSB) |
| Pin 42 | D11A- — Channel A LVDS data 11 negative (MSB) |
| Pin 43 | OR_A+ — Channel A out-of-range positive |
| Pin 44 | OR_A- — Channel A out-of-range negative |
| Pin 45 | DRVDD — Digital 1.8 V supply |
| Pin 46 | D0B+ — Channel B LVDS data 0 positive |
| Pin 47 | D0B- — Channel B LVDS data 0 negative |
| Pin 48 | D11B+/OR_B+ — Channel B LVDS data 11 or out-of-range positive (mode-dependent) |
| Pin 49 | D11B-/OR_B- — Channel B LVDS data 11 or out-of-range negative (mode-dependent) |
| Pin 50 | GND — Ground |
| Pin 51 | PD — Power-down input (active high) |
| Pin 52 | OE — Output enable input (active high) |
| Pin 53 | FSR — Full-scale range select |
| Pin 54 | GND — Ground |
| Pin 55 | AVDD — Analog 3.3 V supply |
| Pin 56 | GND — Ground (exposed paddle, bottom of package) |
Typische Anwendungen
ADC1243D250HD-C1 ist geeignet für 6 Anwendungs: Wireless Base-Station Receiver, Medical Ultrasound Beamforming, Radar and Lidar IF Sampling, Test and Measurement Instrumentation, Software-Defined Radio (SDR), Industrial Process Control.
Wireless Base-Station Receiver
The ADC1243D250HD-C1's 12-bit / 250 MSPS dual sampling and 1.5 GHz analog bandwidth make it ideal for direct-IF sampling in wireless base-station receivers. Each base station typically processes a pair of I and Q IF signals that must be digitized simultaneously; the device's matched dual channels sample on the same LVDS clock edge, eliminating inter-channel skew. Place the I-channel on the I signal path and Q-channel on the Q path with matched trace lengths, and feed the differential analog inputs through a balun-coupler from the mixer IF output. The 67 dBFS SNR supports demodulation of WCDMA, 5G NR, and LTE waveforms with margin for receiver sensitivity targets.
Empfohlen
Medical Ultrasound Beamforming
The ADC1243D250HD-C1 is widely used in ultrasound beamforming front-ends, where dozens of channels digitize returning echoes from transducer elements. Its dual-channel simultaneous sampling supports quadrature or paired transducer layouts, while the 250 MSPS sample rate preserves enough bandwidth for high-frequency imaging probes (5-10 MHz IF). The HLQFN-56 package's small footprint enables dense multi-channel PCB arrays typical of phased-array ultrasound probes. Designers should connect the analog inputs through transformer coupling to reject DC offset and common-mode noise from the transducer preamps, and use the internal reference mode to minimize BOM across hundreds of channels per system.
Empfohlen
Radar and Lidar IF Sampling
In radar and lidar intermediate-frequency sampling, the ADC1243D250HD-C1's 1.5 GHz analog input bandwidth supports direct undersampling of high IF signals without an external downconverter stage. The dual channels can sample both in-phase and quadrature returns from a single mixer, simplifying receiver BOM cost. The device's typical SFDR of 80 dBc at low IF preserves the dynamic range required to distinguish small targets against clutter, while the LVDS parallel outputs feed directly into Xilinx or Altera FPGAs for real-time FFT processing. Maintain low-jitter clock distribution to the LVDS clock input to preserve the datasheet ENOB figure at high IF.
Empfohlen
Test and Measurement Instrumentation
High-speed digitizers and oscilloscope front-ends use the ADC1243D250HD-C1 to capture repetitive or single-shot transients at up to 250 MSPS per channel. Two channels allow simultaneous capture of an input signal and a trigger or reference signal, enabling time-interleaved or differential measurement architectures. The 12-bit resolution provides 4096 quantization levels, suitable for general-purpose lab instrumentation, spectrum analyzer IF digitizers, and protocol analyzers. The internal reference mode simplifies multi-board calibration; the device's exposed-paddle HLQFN-56 package requires a thermal copper pour to dissipate the ~1 W per channel typical operating dissipation in densely populated digitizer cards.
Empfohlen
Software-Defined Radio (SDR)
Software-defined radio platforms rely on wideband ADC front-ends to digitize RF or IF signals directly into the FPGA or DSP for digital demodulation. The ADC1243D250HD-C1 supports IF sampling of HF, VHF, and low-UHF bands with its 1.5 GHz analog bandwidth, and the dual channels handle I/Q demodulation in one device, reducing PCB real estate compared to two single-channel parts. The device's 67 dBFS SNR supports demodulation of narrowband signals (CW, SSB, FM) with margin for adjacent-channel rejection. Combine with a low-jitter clock oscillator (e.g., 50 ppb VCXO) and matched-length differential clock traces to preserve dynamic range.
Empfohlen
Industrial Process Control
In industrial process control, the ADC1243D250HD-C1 digitizes high-speed sensor signals such as vibration, acoustic emission, and high-speed pressure transducer outputs for predictive maintenance and condition monitoring. Two channels allow simultaneous capture of a sensor signal and a reference or calibration signal. The -40C to +85C industrial temperature range supports deployment in factory automation cells, while the HLQFN-56 package's small footprint fits compact DIN-rail-mountable controller modules. Pair with industrial isolation barriers on the analog input path to meet IEC 61010 measurement category requirements for industrial control.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für ADC1243D250HD-C1 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | ADC1243D250HD-C18 | ADC1243D200HD-C1 | ADC1443D250HD-C1 | ADC12D2500RUUT | AD9226ARSZ |
|---|---|---|---|---|---|---|
| Brand | Renesas Electronics (IDT legacy) | Renesas Electronics | Renesas Electronics | Renesas Electronics | Texas Instruments | Analog Devices |
| Package | HLQFN-56 | HLQFN-56 - same | HLQFN-56 - same | HLQFN-56 - same | BGA-114 - different | SSOP-28 - different |
| Resolution | 12 bit | 12 bit | 12 bit | 14 bit | 12 bit | 12 bit |
| Sampling Rate | 250 MSPS | 250 MSPS | 200 MSPS | 250 MSPS | 2500 MSPS | 65 MSPS |
| Channels | 2 | 2 | 2 | 2 | 1 (interleavable to 2) | 1 |
| Input Bandwidth | 1.5 GHz | 1.5 GHz | 1.5 GHz | 1.5 GHz | 2.5 GHz | 750 MHz |
| Output Interface | Parallel LVDS | Parallel LVDS | Parallel LVDS | Parallel LVDS | Parallel LVDS | Parallel CMOS |
| AEC-Q100 Qualified | No | No | No | No | No | No |
Wichtigste Unterscheidungsmerkmale
- Dual 12-bit 250 MSPS simultaneous sampling in a single HLQFN-56 IC (vs. AD9226ARSZ)
- 1.5 GHz analog input bandwidth supports direct IF undersampling (vs. AD9268XCPZ-125)
- Lower power and cost versus ultra-high-speed single-channel parts (vs. ADC12D2500RUUT)
Designhinweise
Treat the analog and digital grounds as separate planes joined at a single point near the exposed paddle of the HLQFN-56 package. Place the input coupling capacitors immediately adjacent to the INA+/INA- and INB+/INB- pins using a small 0402-size ceramic to minimize parasitic inductance. The LVDS clock trace must be routed as a 100-ohm differential pair with matched lengths to both clock pins if the clock is split on the board, and the data output LVDS pairs must be routed with controlled 100-ohm differential impedance and length-matched within the device's skew tolerance.
Do not exceed the absolute maximum AVDD of 3.6 V or DRVDD of 2.0 V. Apply power to AVDD before or simultaneously with DRVDD to avoid latch-up via the LVDS output ESD structures. The internal reference mode requires the REFT and REFB decoupling capacitors (typically 0.1 uF ceramic) placed close to those pads. When driving the analog inputs in single-ended mode, terminate the unused input (INA- or INB-) with a 50-ohm resistor to VCM rather than leaving it floating, which can degrade SFDR.
Estimated: clock jitter of 1 ps RMS degrades SNR by about 4 dB at 50 MHz IF, a 200 MHz AgNO. Use a low-jitter clock source (crystal oscillator or clock distribution IC) with <500 fs RMS jitter to preserve the datasheet SNR figure. Maintain 100-ohm differential impedance on the clock input and data output LVDS pairs, and keep the digital output LVDS pairs separated from analog input traces with a ground guard trace between them. Keep analog input trace lengths matched within 0.5 mm to preserve gain and phase matching between channels.
Estimated: at full sampling rate and both channels enabled, the ADC1243D250HD-C1 dissipates approximately 1 W per channel. The HLQFN-56 package has a bottom-exposed thermal pad that must be soldered to a ground copper pour of at least 1 square inch (6.45 cm^2) to achieve the datasheet theta_JA. For multi-channel digitizer cards, distribute the ADCs across the PCB with adequate spacing and provide airflow or a heatsink if the operating ambient exceeds 60C.
Compliance-Informationen
RoHS and REACH compliant per Renesas product page; not AEC-Q100 qualified - this is a non-Hall product targeted at industrial/communications. Confirm halogen-free status with Renesas for environmental compliance documentation.
