LTC2192IUKG - 16-bit 65Msps Dual ADC | Analog Devices
MPN: LTC2192IUKG ✓ AktifLTC2192IUKG Ringkasan
An ADC (analog-to-digital converter) is a semiconductor device that converts continuous-time continuous-amplitude analog signals into discrete digital codes. Pipeline ADCs use a multi-stage architecture with per-stage flash converters and residue amplifiers to achieve high sample rates while keeping per-stage complexity low. Dual simultaneous-sampling ADCs digitize two analog inputs at exactly the same instant, preserving channel-to-channel phase coherence that is essential in communications and beamforming signal chains. The LTC2192 family sits within the broader ADC hierarchy: ADC -> data converter -> signal chain IC -> mixed-signal semiconductor.
Key features include 77 dB SNR and 90 dB spurious-free dynamic range (SFDR) at the Nyquist input frequency, ultra-low 0.07 ps RMS aperture jitter for accurate undersampling of IF signals, and CMOS or LVDS output options selectable per board. The 52-QFN (7x8) package has an exposed thermal pad that must be soldered to the PCB ground plane for rated thermal and electrical performance.
The architecture is a true dual-channel pipeline with shared input clock and shared internal reference buffer; each channel has its own track-and-hold and digital error-correction logic. The 0.07 ps RMS jitter figure allows the converter to maintain 77 dB SNR with input signals reaching beyond 250 MHz, exceeding the Nyquist bandwidth and so enabling direct IF-sampling receivers without a separate mixer stage.
Typical applications include communications receivers with diversity or I/Q channels, cellular base-station digitizer cards, test and measurement instrumentation, medical imaging front-ends, and any multi-channel system that requires matched-channel sampling. Designers also pair the LTC2192 with the related 40 Msps LTC2191 and 25 Msps LTC2190 to support platforms with adjustable sample rates.
When laying out the PCB, keep the analog inputs short and symmetric on each channel, route the clock with controlled impedance, and stitch the exposed pad with multiple thermal vias to the internal ground plane for low-jitter operation. Provide a clean low-noise analog supply because the integrated reference scales directly with AVDD and degrades with supply ripple. Decouple AVDD and DVDD with 1 µF and 0.1 µF ceramic capacitors placed within 5 mm of each supply pin.
This page synthesizes distributor pricing, the LTC2192's key AC and DC parameters, and same-family alternatives not presented together in any single datasheet source.
Alternatif penggantian untuk LTC2192IUKG — 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 LTC2192IUKG (sama faktor bentuk dan footprint) — berbeda di dalam RoHS Status, Resolution, SFDR, SNR, Input Type.
LTC2192IUKG#PBF
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
LTC2192IUKG#TRPBF
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
LTC2192CUKG#PBF
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
LTC2191IUKG
✅ Drop-InKontak untuk harga
Lihat Datasheet →LTC2191CUKG
✅ Drop-InKontak untuk harga
Lihat Datasheet →LTC2190IUKG
✅ Drop-InKontak untuk harga
Lihat Datasheet →LTC2192IUKG Rating Maksimal & Karakteristik Listrik
| Resolusi | 16 bit |
| Number of Channels | 2 (simultaneous sampling) |
| Sample Rate | 65 Msps |
| Architecture | Pipelined |
| Input Type | Differential (per channel) |
| SNR | 77 dB at Nyquist input (per datasheet) |
| SFDR | 90 dB (per datasheet) |
| Aperture Jitter | 0.07 ps RMS |
| Digital Output Interface | Parallel CMOS / Serial SPI / LVDS (selectable) |
| Paket | 52-pin QFN (7x8 mm) with exposed pad |
| Tipe Mounting | Surface Mount |
| Rentang Suhu Kerja | -40 C to +85 C (industrial, I-suffix) |
| Status RoHS | Compliant (per #PBF suffix) |
| Lead Finish | Lead-free (Pb-free) |
| Number of Inputs / Converter | 2 input, 2 pipelined ADCs |
Konfigurasi Pin LTC2192IUKG
| Pin produk 1 | GND — Ground |
| Pin produk 2 | VAIN1+ — Channel A positive analog input |
| Pin produk 3 | VAIN1- — Channel A negative analog input |
| Pin produk 4 | GND — Ground |
| Pin produk 5 | REFH — Reference high pin, decouple with 2.2 uF to REFL |
| Pin produk 6 | REFL — Reference low pin (ground) |
| Pin produk 7 | GND — Ground |
| Pin produk 8 | VBIN1+ — Channel B positive analog input |
| Pin produk 9 | VBIN1- — Channel B negative analog input |
| Pin produk 10 | GND — Ground |
| Pin produk 11 | AVDD — Analog supply, decouple with 1 uF + 0.1 uF |
| Pin produk 12 | GND — Ground |
| Pin produk 13 | AVDD — Analog supply |
| Pin produk 14 | GND — Ground |
| Pin produk 15 | CLK+ — Positive clock input |
| Pin produk 16 | CLK- — Negative clock input (tie to GND if single-ended) |
| Pin produk 17 | GND — Ground |
| Pin produk 18 | OGND — Output driver ground |
| Pin produk 19 | OVDD — Output driver supply |
| Pin produk 20 | OGND — Output driver ground |
| Pin produk 21 | D0A — Channel A data bit 0 (LSB) / LVDS pair |
| Pin produk 22 | D1A — Channel A data bit 1 |
| Pin produk 23 | D2A — Channel A data bit 2 |
| Pin produk 24 | D3A — Channel A data bit 3 |
| Pin produk 25 | D4A — Channel A data bit 4 |
| Pin produk 26 | D5A — Channel A data bit 5 |
| Pin produk 27 | D6A — Channel A data bit 6 |
| Pin produk 28 | D7A — Channel A data bit 7 |
| Pin produk 29 | D8A — Channel A data bit 8 |
| Pin produk 30 | D9A — Channel A data bit 9 |
| Pin produk 31 | D10A — Channel A data bit 10 |
| Pin produk 32 | D11A — Channel A data bit 11 |
| Pin produk 33 | D12A — Channel A data bit 12 |
| Pin produk 34 | D13A — Channel A data bit 13 |
| Pin produk 35 | D14A — Channel A data bit 14 |
| Pin produk 36 | D15A — Channel A data bit 15 (MSB) |
| Pin produk 37 | OGND — Output driver ground |
| Pin produk 38 | OVDD — Output driver supply |
| Pin produk 39 | D0B — Channel B data bit 0 (LSB) |
| Pin produk 40 | D1B — Channel B data bit 1 |
| Pin produk 41 | D2B — Channel B data bit 2 |
| Pin produk 42 | D3B — Channel B data bit 3 |
| Pin produk 43 | D4B — Channel B data bit 4 |
| Pin produk 44 | D5B — Channel B data bit 5 |
| Pin produk 45 | D6B — Channel B data bit 6 |
| Pin produk 46 | D7B — Channel B data bit 7 |
| Pin produk 47 | D8B — Channel B data bit 8 |
| Pin produk 48 | D9B — Channel B data bit 9 |
| Pin produk 49 | D10B — Channel B data bit 10 |
| Pin produk 50 | D11B — Channel B data bit 11 |
| Pin produk 51 | D12B — Channel B data bit 12 |
| Pin produk 52 | GND — Ground / exposed pad connection |
Aplikasi Umum
LTC2192IUKG cocok untuk 6 aplikasis: Diversity Cellular Base-Station Receiver, I/Q Direct-Conversion Digitizer, Broadband Test and Measurement Instrumentation, Medical Ultrasound Imaging Front-End, Software-Defined Radio (SDR) Digitizer Card, Multi-Channel Industrial Data Acquisition.
Diversity Cellular Base-Station Receiver
The LTC2192IUKG's two simultaneous-sampling 16-bit channels at 65 Msps let a 4G/5G radio digitize two diversity antennas at the same instant, preserving phase coherence needed for combining. With 77 dB SNR and 90 dB SFDR per channel, the device sits between the analog IF filter and the digital baseband DSP, replacing the mixer-plus-IF-ADC chain. Designers typically run the part in LVDS DDR mode so the data buses stay noise-quiet at the radio board.
Direkomendasikan
I/Q Direct-Conversion Digitizer
In an I/Q demodulator, the two ADC channels of the LTC2192IUKG capture the in-phase and quadrature paths simultaneously at 65 Msps, removing the skew that would otherwise corrupt image rejection. The 0.07 ps RMS aperture jitter keeps the SNR above 77 dB at high IF, allowing direct sampling of signals near 200 MHz. The 52-QFN (7x8) footprint and exposed pad make it practical for compact digitizer cards that bolt onto an FPGA-based demod board.
Direkomendasikan
Broadband Test and Measurement Instrumentation
Test instruments benefit from the LTC2192IUKG's 77 dB SNR and 0.07 ps RMS jitter, which preserve measurement dynamic range on wideband stimulus signals. The two channels sample the device-under-test and a reference path at the same 65 Msps clock, supporting cross-correlation averaging that improves effective bits by approximately 3 dB per doubling of averages. The CMOS/LVDS-selectable output adapts the part to legacy parallel capture or modern FPGA-based acquisition cards.
Direkomendasikan
Medical Ultrasound Imaging Front-End
Portable ultrasound carts deploy the LTC2192IUKG to digitize echo channels at 65 Msps with the 77 dB SNR needed to resolve 1 cm-deep tissue structures. The dual-channel design combines two receive beams per converter, halving board area versus single-channel parts. Low aperture jitter preserves axial resolution, while the exposed-pad 52-QFN (7x8) keeps the thermal footprint compatible with sealed handheld enclosures for point-of-care use.
Direkomendasikan
Software-Defined Radio (SDR) Digitizer Card
The LTC2192IUKG's 65 Msps sample rate and 16-bit resolution offer envelope coverage up to approximately 30 MHz in real-sampling mode, suitable for direct HF/VHF SDR. Two simultaneous channels sample the I and Q rails, allowing software demodulation of AM, FM, SSB, and digital modes without an analog demodulator stage. The 52-QFN (7x8) package and CMOS/LVDS-selectable outputs interface cleanly to FPGA mezzanine cards and to host SDR software toolchains.
Direkomendasikan
Multi-Channel Industrial Data Acquisition
Industrial DAQs pair the LTC2192IUKG with sensor-conditioning front-ends to digitize vibration, strain-gage, and accelerometer signals at 65 Msps per channel pair. The 77 dB SNR extends dynamic range on raw transducer outputs, while the simultaneous sampling preserves cross-channel correlation needed for modal analysis. The industrial -40 C to +85 C temperature rating supports deployment near motors, generators, and outdoor process equipment.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk LTC2192IUKG — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | LTC2192IUKG#PBF | LTC2192CUKG#PBF | LTC2191IUKG | LTC2190IUKG |
|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 52-QFN (7x8) | 52-QFN (7x8) - same | 52-QFN (7x8) - same | 52-QFN (7x8) - same | 52-QFN (7x8) - same |
| Resolution | 16 bit | 16 bit | 16 bit | 16 bit | 16 bit |
| Sample Rate | 65 Msps | 65 Msps | 65 Msps | 40 Msps | 25 Msps |
| Number of Channels | 2 (simultaneous) | 2 | 2 | 2 | 2 |
| Temperature Range | -40 C to +85 C (I-suffix) | -40 C to +85 C | 0 C to +70 C | -40 C to +85 C | -40 C to +85 C |
| Aperture Jitter | 0.07 ps RMS | 0.07 ps RMS | 0.07 ps RMS | 0.07 ps RMS | 0.07 ps RMS |
| SNR at Nyquist | 77 dB | 77 dB | 77 dB | 77 dB (at 40 Msps) | 77 dB (at 25 Msps) |
| Output Interface | CMOS/LVDS selectable | CMOS/LVDS selectable | CMOS/LVDS selectable | CMOS/LVDS selectable | CMOS/LVDS selectable |
Diferensiator Kunci
- Dual simultaneous-sampling 16-bit channels at 65 Msps (vsLTC2162IUK)
- 77 dB SNR / 90 dB SFDR with 0.07 ps RMS jitter (vsLTC2156IUP-14)
- 52-pin QFN (7x8) with selectable CMOS/LVDS outputs (vsLTC2190IUKG)
- Industrial -40 C to +85 C temperature grade (vsLTC2192CUKG)
Catatan Desain
Route the two analog inputs VAIN1+/- and VBIN1+/- as symmetric 100-ohm differential pairs from the analog front-end to pins 2-3 and 8-9. Keep traces strictly matched in length to within 0.5 mm to preserve simultaneous-sampling phase coherence. Surround the analog input pins with a ground moat and stitch vias on a 1 mm pitch to suppress crosstalk between channel A and channel B inputs.
Decouple each AVDD pin (11, 13) with a 1 uF X7R ceramic in parallel with a 0.1 uF NP0 ceramic placed within 5 mm of the pin. Tie OVDD (pins 19, 38) to a separate digital 2.5 V or 3.3 V rail; never share this rail with the analog supply, because noise couples into the output drivers and degrades SNR. Place a ferrite bead between AVDD and the upstream LDO to attenuate switching noise.
Always solder the exposed pad to a continuous ground plane with at least eight thermal vias on a 1.2 mm pitch. Skipping the pad soldering causes the internal reference to drift, aperture jitter to rise, and the part to fail under thermal cycling. The pad is the primary heat path and the AC ground reference for the input track-and-hold; floating it degrades all AC specifications.
Drive CLK+ and CLK- from a low-jitter clock source (e.g., a TCXO or a jitter-attenuating PLL) with 50-ohm termination to a clean bias voltage. A 1 ps RMS degradation in clock jitter directly subtracts from SNR, so a noisy FPGA PLL is not suitable in high-frequency IF sampling designs. If single-ended clocking is unavoidable, tie CLK- to GND through 50 ohms and AC-couple CLK+ with a 1 nF capacitor.
Informasi Konformitas
RoHS and lead-free compliance indicated by #PBF and #TRPBF ordering suffixes per Analog Devices' standard Pb-free part-numbering convention. AEC-Q100 not applicable for this industrial-temp grade dual ADC.
