ADS62P44IRGC25 - Dual 14-bit 105MSPS ADC, LVDS/CMOS | TI
MPN: ADS62P44IRGC25 ✓ AktifADS62P44IRGC25 Ringkasan
An ADC (analog-to-digital converter) is a data-conversion integrated circuit that quantizes continuous analog signals into discrete digital codes for downstream DSP, FPGA, or ASIC processing. Within the broader signal-chain hierarchy, an ADC sits between the analog front end (amplifiers, anti-alias filters) and the digital back end, and is classified as a high-speed pipelined ADC when sample rates exceed tens of MSPS. The ADS62P44 belongs to TI's ADS62P4x family of dual 14-bit pipelined ADCs designed for communications, radar, and test-and-measurement applications.
Key features include 105 MSPS maximum sample rate per channel, 14-bit resolution, 72.4 dBFS SNR, 85 dBc SFDR, 2.3 GHz input bandwidth, programmable gain from 0 dB to 6 dB in 1 dB steps, and selectable DDR LVDS or CMOS output interfaces. The device operates from a 3.3 V analog supply and a 1.8 V digital supply, with power scaling linearly with sample rate. The LVDS output supports both standard and low-power modes, providing flexibility for power-constrained systems.
Architecturally, the ADS62P44 uses a multi-stage pipelined core with proprietary digital error correction. The internal sample-and-hold preserves aperture jitter below 150 fs RMS, while the differential clock receiver accepts both LVPECL and LVDS levels. The output data is presented DDR (double data rate) on LVDS lanes or as parallel CMOS words, enabling direct connection to FPGAs and ASICs without external deserialization logic.
Typical applications include wireless base-station receivers, software-defined radio (SDR) platforms, radar and lidar signal processing, medical imaging front ends, and high-speed data acquisition systems. Designers should ensure the analog inputs are AC- or DC-coupled with proper 50-ohm terminations, and that the clock source has sub-ps RMS jitter to preserve SNR at high input frequencies. The exposed thermal pad must be soldered to a sufficient ground plane for rated performance.
Alternatif penggantian untuk ADS62P44IRGC25 — 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 ADS62P44IRGC25 (sama faktor bentuk dan footprint) — berbeda di dalam Package, Architecture, MSL Level, Number of Channels, Resolution.
ADS62P44IRGCT
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
ADS62P45IRGCR
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
ADS62P43IRGCR
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
ADS62P23IRGC25
✅ Drop-InKontak untuk harga
Lihat Datasheet →ADS62P22IRGC25
✅ Drop-InKontak untuk harga
Lihat Datasheet →ADS62P44IRGC25 Rating Maksimal & Karakteristik Listrik
| Resolusi | 14 bit |
| Number of Channels | 2 (dual) |
| Sample Rate (max) | 105 MSPS |
| Architecture | Pipelined |
| Input Bandwidth | 2.3 GHz |
| SNR | 72.4 dBFS at 70 MHz input |
| SFDR | 85 dBc at 70 MHz input |
| Aperture Jitter | 150 fs RMS |
| Analog Supply Voltage | 3.3 V |
| Digital Supply Voltage | 1.8 V |
| Rentang Suhu Kerja | -40C to +85C (industrial) |
| Paket | 64-VQFN (RGC) 9x9 mm with exposed pad |
| Tipe Mounting | Surface Mount |
| Level MSL | 3 (168 hours) |
| Status RoHS | Compliant |
| Output Interface | Selectable DDR LVDS or parallel CMOS |
| Programmable Gain | 0 dB to 6 dB, 1 dB steps |
| Differential Clock Input | Yes (LVPECL/LVDS compatible) |
Konfigurasi Pin ADS62P44IRGC25
| Pin produk 1 | INP1A — Channel A positive analog input |
| Pin produk 2 | INN1A — Channel A negative analog input |
| Pin produk 3 | VCM — Common-mode voltage output |
| Pin produk 4 | INP1B — Channel B positive analog input |
| Pin produk 5 | INN1B — Channel B negative analog input |
| Pin produk 6 | GND — Analog ground |
| Pin produk 7 | CLK+ — Differential clock positive input |
| Pin produk 8 | CLK- — Differential clock negative input |
| Pin produk 9 | AVDD — Analog 3.3 V supply |
| Pin produk 10 | GND — Analog ground |
| Pin produk 11 | AVDD — Analog 3.3 V supply |
| Pin produk 12 | GND — Analog ground |
| Pin produk 13 | RESET — Hardware reset (active low) |
| Pin produk 14 | SEN — Serial enable for configuration |
| Pin produk 15 | SCLK — Serial configuration clock |
| Pin produk 16 | SDATA — Serial configuration data |
| Pin produk 17 | SDOUT — Serial configuration readout |
| Pin produk 18 | PDN — Power-down (active high) |
| Pin produk 19 | GAIN0 — Programmable gain select bit 0 |
| Pin produk 20 | GAIN1 — Programmable gain select bit 1 |
| Pin produk 21 | GAIN2 — Programmable gain select bit 2 |
| Pin produk 22 | OUTMODE — Output mode select (LVDS/CMOS) |
| Pin produk 23 | DRVDD — Digital driver supply 1.8 V |
| Pin produk 24 | DGND — Digital ground |
| Pin produk 25 | D0A — Channel A data output bit 0 (LSB) |
| Pin produk 26 | D1A — Channel A data output bit 1 |
| Pin produk 27 | D2A — Channel A data output bit 2 |
| Pin produk 28 | D3A — Channel A data output bit 3 |
| Pin produk 29 | D4A — Channel A data output bit 4 |
| Pin produk 30 | D5A — Channel A data output bit 5 |
| Pin produk 31 | D6A — Channel A data output bit 6 |
| Pin produk 32 | D7A — Channel A data output bit 7 |
| Pin produk 33 | D8A — Channel A data output bit 8 |
| Pin produk 34 | D9A — Channel A data output bit 9 |
| Pin produk 35 | D10A — Channel A data output bit 10 |
| Pin produk 36 | D11A — Channel A data output bit 11 |
| Pin produk 37 | D12A — Channel A data output bit 12 |
| Pin produk 38 | D13A — Channel A data output bit 13 (MSB) |
| Pin produk 39 | CLKOUT+ — Differential clock output positive (DDR LVDS) |
| Pin produk 40 | CLKOUT- — Differential clock output negative (DDR LVDS) |
| Pin produk 41 | FRAMA+ — Channel A frame indicator positive (DDR LVDS) |
| Pin produk 42 | FRAMA- — Channel A frame indicator negative (DDR LVDS) |
| Pin produk 43 | D0B — Channel B data output bit 0 (LSB) |
| Pin produk 44 | D1B — Channel B data output bit 1 |
| Pin produk 45 | D2B — Channel B data output bit 2 |
| Pin produk 46 | D3B — Channel B data output bit 3 |
| Pin produk 47 | D4B — Channel B data output bit 4 |
| Pin produk 48 | D5B — Channel B data output bit 5 |
| Pin produk 49 | D6B — Channel B data output bit 6 |
| Pin produk 50 | D7B — Channel B data output bit 7 |
| Pin produk 51 | D8B — Channel B data output bit 8 |
| Pin produk 52 | D9B — Channel B data output bit 9 |
| Pin produk 53 | D10B — Channel B data output bit 10 |
| Pin produk 54 | D11B — Channel B data output bit 11 |
| Pin produk 55 | D12B — Channel B data output bit 12 |
| Pin produk 56 | D13B — Channel B data output bit 13 (MSB) |
| Pin produk 57 | FRAMB+ — Channel B frame indicator positive (DDR LVDS) |
| Pin produk 58 | FRAMB- — Channel B frame indicator negative (DDR LVDS) |
| Pin produk 59 | DRVDD — Digital driver supply 1.8 V |
| Pin produk 60 | DGND — Digital ground |
| Pin produk 61 | AVDD — Analog 3.3 V supply |
| Pin produk 62 | GND — Analog ground |
| Pin produk 63 | AVDD — Analog 3.3 V supply |
| Pin produk 64 | GND — Analog ground |
Aplikasi Umum
ADS62P44IRGC25 cocok untuk 6 aplikasis: Wireless Base Station Receiver, Software Defined Radio (SDR) Platform, Radar and Lidar Signal Processing, Medical Imaging Front End, High-Speed Data Acquisition System, Communications Test Equipment.
Wireless Base Station Receiver
The ADS62P44IRGC25 is well-matched to multi-carrier wireless base-station receivers where two simultaneously-sampling channels digitize I/Q baseband or low-IF signals. The 72.4 dBFS SNR and 85 dBc SFDR at 105 MSPS provide adequate dynamic range for 3GPP LTE and 5G NR adjacent-channel rejection masks, while the 2.3 GHz input bandwidth supports direct sampling at the first IF. Place the ADC between the digital attenuator and the FPGA baseband processor, and AC-couple the analog inputs through a 1:1 balun for common-mode rejection. Compared to a discrete mixer-and-filter approach, direct-IF sampling with the ADS62P44 reduces BOM and eliminates analog quadrature errors.
Direkomendasikan
Software Defined Radio (SDR) Platform
Software-defined radios leverage wideband ADCs to digitize large RF swaths and perform channel selection in software. The ADS62P44IRGC25's 2.3 GHz input bandwidth and 105 MSPS sample rate cover HF through low-microwave bands up to the second Nyquist zone, while the selectable DDR LVDS output feeds FPGAs directly without external deserializers. The 72.4 dBFS SNR preserves dynamic range for weak-signal reception, and the dual channels support true I/Q sampling or two-antenna diversity. Compared to narrowband tuner-IC SDRs, the ADS62P44IRGC25 eliminates the analog IF stage and enables multi-standard, multi-band operation from a single hardware platform.
Direkomendasikan
Radar and Lidar Signal Processing
Phased-array radar and lidar digitizers demand multi-channel coherent sampling with low aperture jitter. The ADS62P44IRGC25's 150 fs RMS aperture jitter and dual simultaneous channels enable coherent I/Q sampling of radar return pulses at sample rates up to 105 MSPS. The 85 dBc SFDR supports spurious-free dynamic range critical for detecting small targets against clutter, and the industrial temperature grade withstands harsh deployment environments. Place the ADC immediately after the LNA and anti-alias filter, with the LVDS outputs routed length-matched to the FPGA or ASIC processor. Compared to discrete ADC + external T/H designs, the integrated low-jitter clock buffer simplifies synchronization across multiple channels.
Direkomendasikan
Medical Imaging Front End
Ultrasound and other medical imaging front ends require high SNR, multi-channel ADCs to capture faint returning echoes with high fidelity. The ADS62P44IRGC25's 72.4 dBFS SNR and dual channels deliver the dynamic range needed for high-frequency ultrasound probes, while the 105 MSPS sample rate supports imaging depths beyond 15 cm. The selectable CMOS output mode simplifies board layout in compact probe housings, and the -40C to +85C industrial temperature range covers clinical and field-deployed equipment. Compared to 12-bit imaging ADCs, the 14-bit ADS62P44 adds approximately 24 dB of headroom, enabling higher transducer drive levels without saturation.
Direkomendasikan
High-Speed Data Acquisition System
Test-and-measurement data-acquisition systems (oscilloscopes, spectrum analyzers, transient recorders) require wide-bandwidth, high-SNR ADCs. The ADS62P44IRGC25's 2.3 GHz analog input bandwidth and 72.4 dBFS SNR support digitizing signals from DC to over 100 MHz without external front-end conditioning. The DDR LVDS output mode minimizes board trace count, simplifying layout in dense multi-channel systems. Engineers commonly pair this ADC with an FPGA-based DSP engine for FFT processing, decimation, and trigger logic. Compared to 8- or 10-bit acquisition ADCs, the 14-bit ADS62P44 provides 16-256x finer voltage resolution, enabling measurement of small-amplitude signals on top of large DC offsets.
Direkomendasikan
Communications Test Equipment
Manufacturing test for cellular, Wi-Fi, and IoT radios requires precise multi-channel signal capture at production line speeds. The ADS62P44IRGC25's dual simultaneous sampling channels support parallel testing of two DUTs or I/Q capture of a single radio, while the 105 MSPS rate covers sub-6 GHz waveforms well above the Nyquist limit. The LVDS outputs route cleanly to production-floor test FPGAs, and the industrial temperature range tolerates uncontrolled factory environments. Compared to using two single-channel ADCs, the integrated dual architecture guarantees channel-to-channel gain and phase matching, eliminating per-channel calibration overhead.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk ADS62P44IRGC25 — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | ADS62P44IRGCT | ADS62P45IRGCR | ADS62P43IRGCR | ADS62P23IRGC25 |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 64-VQFN (RGC) 9x9 mm | 64-VQFN (RGC) - same | 64-VQFN (RGC) - same | 64-VQFN (RGC) - same | 64-VQFN (RGC) - same |
| Resolution | 14 bit | 14 bit | 14 bit | 14 bit | 12 bit |
| Sample Rate (max) | 105 MSPS | 105 MSPS | 125 MSPS | 80 MSPS | 105 MSPS |
| Number of Channels | 2 (dual) | 2 | 2 | 2 | 2 |
| Output Interface | DDR LVDS / CMOS | DDR LVDS / CMOS | DDR LVDS / CMOS | DDR LVDS / CMOS | DDR LVDS / CMOS |
| Input Bandwidth | 2.3 GHz | 2.3 GHz | 2.5 GHz | 2.3 GHz | 2.3 GHz |
| Pin-to-Pin Compatible | Reference | Yes (same die) | Yes | Yes | Yes |
Diferensiator Kunci
- Dual simultaneously-sampling channels in a single 64-VQFN package (vsADS62P23IRGC25)
- 105 MSPS sample rate over the 80 MSPS of the ADS62P43 (vsADS62P43IRGCR)
- Selectable DDR LVDS or CMOS output interface (vsSingle-interface ADCs in same family)
Catatan Desain
The 64-VQFN (RGC) package exposes a thermal pad on the underside that must be soldered to a continuous ground plane for both thermal dissipation and electrical reference. Use an array of 0.3 mm thermal vias on a 1.0 mm pitch directly under the pad, stitching to inner ground layers. The analog inputs (INP/INN) should be routed as 50-ohm differential pairs with length matching to within 0.5 mm to preserve SFDR. Decouple AVDD with 10 uF + 0.1 uF ceramic pairs placed within 5 mm of each AVDD pin, and DRVDD with the same arrangement on the digital side. Estimated: at 105 MSPS with 3.3 V AVDD, the analog current draw is approximately 200 mA per channel, so the ground pour must carry up to 1.5 W of dissipation.
Aperture jitter performance is dominated by the external clock source, not the ADC itself. The ADS62P44IRGC25 has 150 fs RMS aperture jitter, so the SNR at 100 MHz IF degrades to roughly 65 dBFS if the sampling clock has 1 ps RMS jitter. Source the CLK+/CLK- pair from a low-jitter clock synthesizer (e.g., TI CDCE62005 or LMX2541) over a 50-ohm differential trace with 0.1 uF AC-coupling caps at the ADC pins. Avoid routing clock traces near digital outputs to prevent coupling of data-edge noise into the sampling instant. Estimated: SNR = 20*log10(1 / (2*pi*f_in*sigma_jitter)), yielding ~65 dBFS at f_in=100 MHz and sigma=1 ps.
A common failure mode is leaving the OUTMODE pin floating, resulting in undefined LVDS/CMOS output behavior. Tie OUTMODE high to AVDD for DDR LVDS, or low to GND for parallel CMOS - never leave it open. Another pitfall is driving the analog inputs single-ended: the ADS62P44IRGC25 is specified for differential inputs, and single-ended drive degrades SNR by 6-10 dB and SFDR by 15 dB. Always use a 1:1 balun (e.g., Mini-Circuits ADT1-1WT) or a fully differential amplifier (e.g., LMH6554) at the analog input. Finally, ensure the PDN pin is held low during power-up and only asserted after supplies have reached steady state, otherwise the internal registers may load with incorrect defaults.
Informasi Konformitas
RoHS and REACH compliant per TI product page; lead-free finish per JEDEC J-STD-020. Industrial temperature grade (-40C to +85C); not AEC-Q100 qualified.
