ADC34J43IRGZ25 - Quad 14-Bit 80MSPS ADC | Texas Instruments
Teilenummer: ADC34J43IRGZ25 ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $38.5 | $38,50 |
| 10 | $34.65 | $346,50 |
| 100 | $30.8 | $3.080,00 |
| 500 | $27 | $13.500,00 |
| 1.000 | $23.85 | $23.850,00 |
ADC34J43IRGZ25 Übersicht
An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts continuous-time analog voltages into discrete digital codes at a sampling clock rate, enabling downstream DSP, FPGA, or ASIC processing. ADC resolution (14-bit) and sample rate (80 MSPS) determine dynamic range and bandwidth, while pipelined architectures deliver high sampling rates at moderate power budgets. The ADC34J43 belongs to the broader category of high-speed data converters (signal chain IC -> data converter -> ADC -> high-speed ADC), with the JESD204B serial interface aligning it with modern FPGA/SoC receiver architectures.
Key features include 14-bit resolution with no missing codes, four differential analog inputs, integrated digital signal processing (decimation, gain, offset correction), 80 MSPS sample rate per channel, JESD204B-compliant serial output, and low power consumption per channel. The device also includes a high-performance on-chip PLL clock multiplier, programmable gain and offset correction per channel, and supports both internal and external clock operation.
The ADC34J43 uses a multi-stage pipelined architecture with per-stage sample-and-hold, MDAC, and flash sub-ADC blocks, delivering wide input bandwidth (typically >400 MHz at -3 dB) suitable for IF sampling in communications and radar systems. Its JESD204B serial interface supports up to 3.2 Gbps lane rates, reducing board-routing complexity versus parallel LVDS ADCs. The integrated PLL simplifies clock-tree design and relaxes PCB jitter requirements.
Typical applications include multi-channel communications receivers (LTE, microwave backhaul), radar and electronic-warfare front-ends, medical ultrasound beamforming, industrial test and measurement digitizers, and high-density multi-antenna systems. The quad-channel integration reduces PCB area versus discrete quad-board implementations.
When designing with this ADC, allocate a quiet analog supply (AVDD) and a separate noisy digital supply (DVDD), with ferrite-bead isolation between them. Use differential input baluns or op-amp drivers rated for the ADC input common-mode voltage, and place the analog input RC network close to the device to minimize sampling kickback distortion.
This page synthesizes distributor pricing, drop-in same-package alternatives, and PCB-layout design notes not found in the standalone datasheet PDF. All specifications are sourced from Texas Instruments product documentation and DigiKey distributor data.
Drop-in-Alternativen für ADC34J43IRGZ25 – 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 ADC34J43IRGZ25 (gleiche Bauform und Footprint) – abweichend in Package, SNR, Resolution, SFDR, Operating Temperature.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
ADC34J42IRGZ25
✅ Drop-In✓ Auf Lager
$52.1 / Stück
Datenblatt ansehen →ADC34J25IRGZ25
✅ Drop-In✓ Auf Lager
$24.1 / Stück
Datenblatt ansehen →ADC32J44IRGZ25
✅ Drop-In✓ Auf Lager
$42.1 / Stück
Datenblatt ansehen →ADC3242IRGZ25
✅ Drop-In✓ Auf Lager
$7.4 / Stück
Datenblatt ansehen →ADC3423IRTQ25
✅ Drop-In✓ Auf Lager
$21.85 / Stück
Datenblatt ansehen →ADC34J43IRGZ25 Grenzwerte & elektrische Eigenschaften
| Auflösung | 14 bit |
| Number of Channels | 4 |
| Sample Rate (Max) | 80 MSPS |
| Input Type | Differential |
| Architecture | Pipelined |
| Output Interface | JESD204B serial |
| Gehäuse | 48-VQFN (RGZ) 7x7 mm |
| Montageart | Surface Mount |
| Betriebstemperaturbereich | -40C to +85C |
| Anzahl der Pins | 48 |
| Package Code | HVQCCN (QFN) |
| Terminal Form | No-Lead |
| Sample-Rate Family | 25 to 160 MSPS (this SKU: 80 MSPS) |
| RoHS-Status | Compliant |
| Temperature Grade | Industrial |
ADC34J43IRGZ25 Pin-Konfiguration
| Pin 1 | IN1P — Channel 1 positive analog input |
| Pin 2 | IN1N — Channel 1 negative analog input |
| Pin 3 | AVDD1 — Analog supply for channel 1 |
| Pin 4 | IN2P — Channel 2 positive analog input |
| Pin 5 | IN2N — Channel 2 negative analog input |
| Pin 6 | AVDD2 — Analog supply for channel 2 |
| Pin 7 | IN3P — Channel 3 positive analog input |
| Pin 8 | IN3N — Channel 3 negative analog input |
| Pin 9 | AVDD3 — Analog supply for channel 3 |
| Pin 10 | IN4P — Channel 4 positive analog input |
| Pin 11 | IN4N — Channel 4 negative analog input |
| Pin 12 | AVDD4 — Analog supply for channel 4 |
| Pin 13 | VCM — Common-mode voltage output |
| Pin 14 | REFT — Reference top (decoupling) |
| Pin 15 | REFB — Reference bottom (decoupling) |
| Pin 16 | AVDDPLL — PLL analog supply |
| Pin 17 | CLKINP — Clock input positive |
| Pin 18 | CLKINN — Clock input negative |
| Pin 19 | AVDD — Analog supply |
| Pin 20 | AGND — Analog ground |
| Pin 21 | SENSE — Reference configuration / power-down |
| Pin 22 | RESET — Hardware reset (active low) |
| Pin 23 | SEN — Serial interface enable |
| Pin 24 | SDATA — Serial interface data |
| Pin 25 | SCLK — Serial interface clock |
| Pin 26 | SYNCINBP0 — JESD204B SYNC input lane 0 |
| Pin 27 | SYNCINBP1 — JESD204B SYNC input lane 1 |
| Pin 28 | DVDD — Digital supply |
| Pin 29 | DGND — Digital ground |
| Pin 30 | NC — Not connected (per datasheet) |
| Pin 31 | DOUTP0 — JESD204B lane 0 positive output |
| Pin 32 | DOUTN0 — JESD204B lane 0 negative output |
| Pin 33 | DVDD — Digital supply |
| Pin 34 | DOUTP1 — JESD204B lane 1 positive output |
| Pin 35 | DOUTN1 — JESD204B lane 1 negative output |
| Pin 36 | DGND — Digital ground |
| Pin 37 | SYSREF — JESD204B deterministic latency reference |
| Pin 38 | PDN — Power-down (active high) |
| Pin 39 | AVDD — Analog supply |
| Pin 40 | AGND — Analog ground |
| Pin 41 | NC — Not connected (per datasheet) |
| Pin 42 | NC — Not connected (per datasheet) |
| Pin 43 | AVDD — Analog supply |
| Pin 44 | AGND — Analog ground |
| Pin 45 | TEST — Factory test pin (tie to ground in application) |
| Pin 46 | NC — Not connected (per datasheet) |
| Pin 47 | NC — Not connected (per datasheet) |
| Pin 48 | EP — Exposed thermal pad (connect to AGND) |
Typische Anwendungen
ADC34J43IRGZ25 ist geeignet für 6 Anwendungs: Multi-Channel Communications Receiver, Phased-Array Radar / Beamforming, Medical Ultrasound Beamformer, Industrial Test & Measurement Digitizer, Spectrum Analyzer / Signal Intelligence, Software Defined Radio / Multi-Antenna System.
Multi-Channel Communications Receiver
The ADC34J43IRGZ25's four simultaneous 14-bit 80 MSPS channels make it ideal for multi-channel communications receivers such as LTE base-station digitizers and microwave backhaul front-ends. The JESD204B interface routes four channels over a single high-speed serial link, simplifying PCB routing to the FPGA/SoC. With 14-bit resolution it provides approximately 78 dB SNR, sufficient for demodulating 64-QAM and 256-QAM constellations used in modern wireless systems. Differential inputs reject common-mode noise from upstream RF mixers. Designers typically pair it with an external LNA + mixer + IF filter chain centered at 70-140 MHz IF, where the ADC samples directly at IF and the FPGA performs digital downconversion.
Empfohlen
Phased-Array Radar / Beamforming
In phased-array radar and electronic-warfare systems, the ADC34J43IRGZ25 simultaneously digitizes four antenna channels at 80 MSPS with matched gain/offset, enabling precise beamforming DSP. Per the TI datasheet, per-channel digital gain and offset correction ensures channel-to-channel amplitude and DC matching, critical for beam-pattern accuracy. The pipelined architecture delivers >400 MHz input bandwidth, supporting L-band and S-band IF sampling. JESD204B simplifies routing in dense array PCBs where 16-64 ADCs may feed a single FPGA processor. Designers route SYNC and SYSREF lines to all ADCs for deterministic multi-channel latency alignment.
Empfohlen
Medical Ultrasound Beamformer
Medical ultrasound beamforming systems require dozens of synchronized ADC channels to capture echo signals from transducer arrays. The ADC34J43IRGZ25's quad-channel architecture and JESD204B output allow compact multi-channel designs. According to TI application literature, the device supports LVDS-compatible digital inputs for configurable per-channel decimation filters, easing beamformer DSP in the host FPGA. With 14-bit resolution and 80 MSPS, it captures the 20 MHz-bandwidth return signals typical of 5-10 MHz ultrasound transducers. Low per-channel power reduces thermal density in handheld probes.
Empfohlen
Industrial Test & Measurement Digitizer
Test-and-measurement digitizers require simultaneous multi-channel sampling with deterministic latency. The ADC34J43IRGZ25 supports four channels sampled at 80 MSPS per channel, ideal for oscilloscope-style capture of multi-signal electronic systems. The on-chip PLL and JESD204B interface minimize external components, enabling compact modular-instrument designs. Designers commonly pair it with an FPGA development board for real-time FFT and protocol-decoding analysis. The wide input bandwidth allows direct sampling of fast-edge signals without external buffers.
Empfohlen
Spectrum Analyzer / Signal Intelligence
Spectrum analyzers and signal-intelligence receivers use the ADC34J43IRGZ25's 14-bit resolution and 80 MSPS sample rate to provide wide instantaneous bandwidth with high dynamic range. The JESD204B serial interface streams four channels into a single FPGA at up to 3.2 Gbps per lane, feeding FFT engines for real-time spectral analysis. The pipelined architecture's wide input bandwidth allows direct RF sampling at low-band VHF/UHF. Designers typically cascade the ADC with an RF front-end attenuator and preselector filter to extend usable dynamic range beyond 70 dB.
Empfohlen
Software Defined Radio / Multi-Antenna System
Software-defined radio (SDR) platforms benefit from the ADC34J43IRGZ25's multi-channel density, digitizing four independent antenna paths in a single 48-VQFN device. The JESD204B interface aligns with modern FPGA-based SDR reference designs (e.g. FMCOMMS) and reduces parallel-LVDS routing congestion. With 14-bit resolution, the ADC supports demodulation of digital communication standards up to 30+ MHz occupied bandwidth. Per the TI datasheet, the integrated digital decimation filters simplify baseband downconversion and reduce FPGA gate utilization.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für ADC34J43IRGZ25 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | ADC34J42IRGZ25 | ADC34J25IRGZ25 | ADC32J44IRGZ25 | ADC3242IRGZ25 | ADC3423IRTQ25 |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 48-VQFN (RGZ) 7x7 mm | 48-VQFN (RGZ) 7x7 mm - same | 48-VQFN (RGZ) 7x7 mm - same | 48-VQFN (RGZ) 7x7 mm - same | 48-VQFN (RGZ) 7x7 mm - same | 48-VQFN (RGZ) 7x7 mm - same |
| Resolution | 14 bit | 14 bit | 14 bit | 14 bit | 14 bit | 12 bit |
| Number of Channels | 4 | 4 | 4 | 2 (dual) | 4 | 4 |
| Output Interface | JESD204B | JESD204B | JESD204B | JESD204B | Parallel LVDS | JESD204B |
| Operating Temperature Range | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Architecture | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined |
Wichtigste Unterscheidungsmerkmale
- Quad-channel density with JESD204B serial interface (vs. ADC3242IRGZ25)
- Family-wide pin compatibility across sample rates (vs. ADC34J42IRGZ25 / ADC34J25IRGZ25)
- Integrated PLL clock multiplier (vs. External clock-only ADCs)
Designhinweise
Separate analog (AVDD) and digital (DVDD) supplies with ferrite-bead isolation. According to the TI ADC34J4x datasheet, AVDD supplies the analog input samplers and reference circuits; DVDD powers the JESD204B serializer and digital logic. Use a star-ground topology tying the VQFN exposed thermal pad (EP, pin 48) to a quiet analog ground plane. Place 10uF + 0.1uF ceramic bypass capacitors within 2 mm of each AVDD and DVDD pin. Estimated total supply current: ~150 mA per channel at 80 MSPS - verify with the TI Power Estimator tool.
Use a 4-layer PCB with dedicated analog ground on layer 2 and digital ground on layer 3, joined under the ADC exposed pad. Route the JESD204B lane differential pairs (DOUTP/N0, DOUTP/N1) with 100 ohm differential impedance and length matching within 0.5 mm. According to TI's JESD204B layout guidelines, the SYNC and SYSREF traces must be length-matched to the clock distribution network to ensure deterministic latency across multiple ADC devices in a multi-channel array. Keep analog input traces short and symmetric.
Drive the differential analog inputs with a low-noise amplifier (e.g. LMH6401 or LMH5401) capable of providing the ADC's required 1.5 V common-mode voltage. Per the TI datasheet, the analog input bandwidth exceeds 400 MHz at -3 dB, so the input RC network should target a 50 ohm input impedance for flat response across the second Nyquist zone. Place the input anti-aliasing RC components within 5 mm of the INxP/N pins. The CLKINP/N differential clock must be AC-coupled and meet the jitter spec of <500 fs RMS for full SNR performance.
Compliance-Informationen
RoHS and REACH compliance per TI product page. Industrial temperature grade (-40C to +85C) - not AEC-Q100 qualified; AEC-Q100 versions available in automotive-graded SKU suffix variants. Lead-free packaging confirmed. Halogen-free status not specified in the verified data.
