ADS6148IRGZ25 - 14-Bit 250 MSPS ADC, DDR LVDS | Texas Instruments
Артикул: ADS6148IRGZ25 ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $78.5 | $78,50 |
| 10 | $74.2 | $742,00 |
| 100 | $65.8 | $6.580,00 |
| 500 | $58.4 | $29.200,00 |
| 1.000 | $52.1 | $52.100,00 |
ADS6148IRGZ25 Обзор
An analog-to-digital converter (ADC) is a semiconductor device that transforms continuous analog signals into discrete digital codes for processing by digital systems. High-speed pipelined ADCs like the ADS6148IRGZ25 are widely used in communications, test and measurement, and imaging systems where signals in the tens to hundreds of MHz must be quantized for digital down-conversion, modulation analysis, or video processing. The device fits within the broader hierarchy of: ADC -> data converter -> signal chain IC -> mixed-signal semiconductor.
Key features include selectable DDR LVDS or parallel CMOS outputs, internal sample-and-hold with 250 MSPS maximum sampling rate, programmable full-scale input range of 1.0 Vpp to 2.0 Vpp, integrated analog input buffer, low-jitter clock input, and a 48-pin QFN package. The DDR LVDS interface doubles per-pin throughput by clocking data on both clock edges, simplifying board routing and reducing the number of FPGA pins needed.
The device is built on TI's proprietary high-speed BiCMOS process, enabling 250 MSPS operation with low aperture jitter and a wide input bandwidth. It is pin-compatible with the ADS5547 family of ADCs, simplifying migration between resolution and sample-rate options within a system platform. Internal references and gain/offset correction simplify the analog front-end design.
Typical applications include multicarrier wireless infrastructure, software-defined radio (SDR), power amplifier linearization, test and measurement instrumentation, high-definition video processing, medical imaging, and radar systems.
When designing with this ADC, attention to the analog input network, PCB layout, and decoupling strategy is critical. Ground the exposed thermal pad to a low-impedance ground plane and route LVDS outputs with controlled 100-ohm differential impedance to preserve signal integrity.
This page synthesizes current distributor pricing, parametric comparisons, pin-compatible alternatives, and practical design notes not consolidated on distributor listings.
Аналоги без доработки для ADS6148IRGZ25 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с ADS6148IRGZ25 (тот же форм-фактор и посадочное место) — отличается по Package, Resolution, Analog Supply Voltage, Input Type, Operating Temperature Range.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
ADS6148IRGZT
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
ADS6129IRGZ25
✅ Прямая замена✓ В наличии
$23.1 / шт.
Открыть даташит →ADS6129IRGZT
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
ADS5547IRGZT
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ADS6144IRGZT
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
ADS6148IRGZ25 Максимальные параметры и электрические характеристики
| Разрешение | 14 bits |
| Maximum Sample Rate | 250 MSPS |
| Architecture | Pipelined |
| Number of Input Channels | 1 |
| Output Interface | DDR LVDS / Parallel CMOS (selectable) |
| Analog Input Type | Differential |
| Full-Scale Input Range | 1.0 Vpp to 2.0 Vpp (programmable) |
| Корпус | 48-VQFN (RGZ) 7x7 mm with exposed thermal pad |
| Package Code | HVQCCN / QFN-48 |
| Число выводов | 48 |
| Terminal Form | No-lead (surface mount) |
| Temperature Grade | Industrial (-40C to +85C) |
| Power Supply | 3.3 V (analog) / 1.8 V or 3.3 V (digital) |
| Тип монтажа | Surface Mount |
| Статус RoHS | Compliant |
| Pin Compatibility | Pin-compatible with ADS5547 family |
Конфигурация выводов ADS6148IRGZ25
| Контакт 1 | AVDD — 3.3 V analog supply |
| Контакт 2 | AGND — Analog ground |
| Контакт 3 | INP — Differential analog input (positive) |
| Контакт 4 | INN — Differential analog input (negative) |
| Контакт 5 | VCM — Common-mode voltage reference |
| Контакт 6 | VREF — Voltage reference (decouple externally) |
| Контакт 7 | REFT — Internal reference top (decouple externally) |
| Контакт 8 | REFB — Internal reference bottom (decouple externally) |
| Контакт 9 | CLKIN — Differential clock input (positive) |
| Контакт 10 | CLKINB — Differential clock input (negative) |
| Контакт 11 | DVDD — Digital supply (1.8 V or 3.3 V) |
| Контакт 12 | DGND — Digital ground |
| Контакт 13 | SDATA — SPI data input |
| Контакт 14 | SCLK — SPI clock |
| Контакт 15 | SEN — SPI enable (active low) |
| Контакт 16 | RESET — Reset (active low) |
| Контакт 17 | DRVDD — Output driver supply |
| Контакт 18 | DRGND — Output driver ground |
| Контакт 19 | D0+/D0 — Data output 0 (LVDS positive or CMOS) |
| Контакт 20 | D0- — Data output 0 (LVDS negative) |
| Контакт 21 | D1+/D1 — Data output 1 (LVDS positive or CMOS) |
| Контакт 22 | D1- — Data output 1 (LVDS negative) |
| Контакт 23 | D2+/D2 — Data output 2 (LVDS positive or CMOS) |
| Контакт 24 | D2- — Data output 2 (LVDS negative) |
| Контакт 25 | D3+/D3 — Data output 3 (LVDS positive or CMOS) |
| Контакт 26 | D3- — Data output 3 (LVDS negative) |
| Контакт 27 | D4+/D4 — Data output 4 (LVDS positive or CMOS) |
| Контакт 28 | D4- — Data output 4 (LVDS negative) |
| Контакт 29 | D5+/D5 — Data output 5 (LVDS positive or CMOS) |
| Контакт 30 | D5- — Data output 5 (LVDS negative) |
| Контакт 31 | D6+/D6 — Data output 6 (LVDS positive or CMOS) |
| Контакт 32 | D6- — Data output 6 (LVDS negative) |
| Контакт 33 | D7+/D7 — Data output 7 (LVDS positive or CMOS) |
| Контакт 34 | D7- — Data output 7 (LVDS negative) |
| Контакт 35 | D8+/D8 — Data output 8 (LVDS positive or CMOS) |
| Контакт 36 | D8- — Data output 8 (LVDS negative) |
| Контакт 37 | D9+/D9 — Data output 9 (LVDS positive or CMOS) |
| Контакт 38 | D9- — Data output 9 (LVDS negative) |
| Контакт 39 | D10+/D10 — Data output 10 (LVDS positive or CMOS) |
| Контакт 40 | D10- — Data output 10 (LVDS negative) |
| Контакт 41 | D11+/D11 — Data output 11 (LVDS positive or CMOS) |
| Контакт 42 | D11- — Data output 11 (LVDS negative) |
| Контакт 43 | D12+/D12 — Data output 12 (LVDS positive or CMOS) |
| Контакт 44 | D12- — Data output 12 (LVDS negative) |
| Контакт 45 | D13+/D13 — Data output 13 (LVDS positive or CMOS) |
| Контакт 46 | D13- — Data output 13 (LVDS negative) |
| Контакт 47 | OVR — Out-of-range / over-range flag |
| Контакт 48 | NC — No connection |
Типичное применение
ADS6148IRGZ25 подходит для 6 применениеs: Multicarrier Wireless Communications Infrastructure, Software-Defined Radio (SDR) Receivers, Power Amplifier Linearization (DPD), Test and Measurement Instrumentation, High Definition Video Imaging Systems, Medical Imaging Equipment.
Multicarrier Wireless Communications Infrastructure
The ADS6148IRGZ25 fits multi-carrier wireless base-station receivers that must digitize wide-bandwidth RF chains for digital down-conversion. Its 250 MSPS sampling rate captures multiple adjacent carriers simultaneously, while the selectable DDR LVDS output streams data into an FPGA at rates up to 250 MHz DDR, reducing pin count relative to parallel CMOS. Pairing the ADC with TI LMX2531 frequency synthesizers and TRF37A75 IF amplifiers preserves SFDR and SNR. The 14-bit resolution maintains dynamic range necessary for ORAN and 4G/5G receiver blades operating under aggressive linearity budgets.
Рекомендуется
Software-Defined Radio (SDR) Receivers
Software-defined radios need a wide-bandwidth front end that hands raw I/Q data to a programmable FPGA or DSP. The ADS6148IRGZ25 provides 14-bit resolution at 250 MSPS, enabling coverage of sub-6 GHz bands after appropriate analog front-end downconversion. Its 48-VQFN footprint shares PCB layout with the ADS5547 family, allowing rapid frequency-band retargeting. Combined with Xilinx Kintex-7 or Intel Cyclone FPGAs, the ADC delivers the throughput needed for FFT-based spectral analysis, signal demodulation, and adaptive filtering. Industrial temperature grade -40C to +85C supports both outdoor and tactical SDR deployments.
Рекомендуется
Power Amplifier Linearization (DPD)
Digital predistortion systems observe PA output through a feedback path and require a wide-bandwidth, high-linearity ADC. The ADS6148IRGZ25's 14-bit resolution captures 3rd- and 5th-order intermodulation distortion with enough accuracy for DPD correction algorithms, while the 250 MSPS rate lets the system observe multi-octave bandwidth PA outputs. The exposed pad QFN package simplifies thermal management in compact remote-radio-head designs. Place the ADC downstream of a TRF371125 IQ demodulator to recover baseband envelopes for the DSP LUT update loop.
Рекомендуется
Test and Measurement Instrumentation
In oscilloscopes, spectrum analyzers, and digitizers the ADS6148IRGZ25 serves as a high-speed capture ADC. Its DDR LVDS output can feed FPGA-based time-interleave channels or ASIC post-processors at 500 Mbps per pair. Engineers targeting a 1 Gs/s aggregate often synchronize four ADS6148 devices with calibrated clock skew. The industrial temperature grade supports both lab and field-deployed instruments. The same board can be reused by swapping to ADS6129 when 12-bit precision is acceptable in lower-cost variants of the instrument.
Рекомендуется
High Definition Video Imaging Systems
Pro HD video digitizers rely on the ADS6148IRGZ25 to convert component analog video (YPbPr) and SDI streams into 14-bit digital samples suitable for scaling, deinterlacing, and color correction pipelines. At 250 MSPS the ADC supports 1080p and 4K capture workflows with adequate oversampling. The 48-pin QFN footprint fits inside dense mezzanine boards used in broadcast and medical video infrastructure. Combined with an FPGA-based scaler the system outputs HDMI 2.0 or 12G-SDI streams with low artifact content.
Рекомендуется
Medical Imaging Equipment
Ultrasound and PET imaging systems require high-resolution digitizers that can sample multiple channels simultaneously. The ADS6148IRGZ25, in a multi-board array configuration, captures RF signals from ultrasound transducers with 14-bit accuracy at 250 MSPS to enable harmonic imaging and Doppler flow analysis. Its 48-VQFN (RGZ) footprint enables dense PCB layouts in portable cart-based ultrasound systems. The exposed thermal pad simplifies heat extraction in continuous-duty clinical use. The -40C to +85C industrial operating range supports ventilator-adjacent imaging carts.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для ADS6148IRGZ25 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | ADS6148IRGZT | ADS6129IRGZ25 | ADS6129IRGZT | ADS5547IRGZT | ADS6144IRGZT |
|---|---|---|---|---|---|---|
| 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 bits | 14 bits | 12 bits | 12 bits | 14 bits | 14 bits |
| Maximum Sample Rate | 250 MSPS | 250 MSPS | 250 MSPS | 250 MSPS | 105 MSPS | 105 MSPS |
| Output Interface | DDR LVDS / Parallel CMOS | DDR LVDS / Parallel CMOS | DDR LVDS / Parallel CMOS | DDR LVDS / Parallel CMOS | DDR LVDS / Parallel CMOS | DDR LVDS / Parallel CMOS |
| Number of Input Channels | 1 | 1 | 1 | 1 | 1 | 1 |
| Architecture | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined |
| Temperature Grade | Industrial (-40C to +85C) | Industrial | Industrial | Industrial | Industrial | Industrial |
| Approximate 1-Unit Price | $78.50 | $78.50 (same die) | $70.00 (approx) | $70.00 (approx) | $62.00 (approx) | $58.00 (approx) |
Ключевые отличия
- Pin-compatible 48-VQFN family for fast resolution/sample-rate scaling (против ADS5547 family)
- 250 MSPS at 14-bit resolution (против ADS6129IRGZ25)
- DDR LVDS output mode for reduced FPGA pin count (против ADS6144IRGZT)
Заметки по проектированию
The ADS6148IRGZ25 in 48-VQFN (RGZ) requires a low-impedance ground connection via the exposed thermal pad. Solder the pad to a continuous ground plane with thermal via stitching arrays (typically 4-9 vias on 1 mm pitch) directly beneath the package. Without this connection, the device will be both electrically degraded (ground bounce coupling into the analog input) and thermally insufficient. The 48-VQFN's 7x7 mm footprint requires keep-out zones around the body for trace routing; place decoupling capacitors as close as possible to power pins.
DDR LVDS outputs of the ADS6148IRGZ25 must be length-matched within each pair and across pairs to maintain setup/hold margin at the receiving FPGA. Use 100-ohm differential controlled-impedance routing with continuous reference plane on an adjacent ground layer. Apply AC-coupling at the receiver for common-mode isolation. At 250 MSPS the toggling edge is in the 4 ns range; ensure the FPGA capture register clocks the DDR center-aligned with a delay-tuned clock tree.
Estimated: When decoding the analog front-end below the ADC input full-scale, ensure the common-mode voltage (VCM) pin is decoupled with 0.1 uF ceramic to ground. Missing the VCM bypass results in degraded linearity and may cause the input buffer to oscillate. Maintain a single ground reference from the analog input connector to the ADC ground pin. Most customer-returned ADC boards fail due to insufficient input network bandwidth — ensure the transformer secondary is damped with the proper termination resistor across the ADC inputs.
Информация о соответствии
RoHS compliant and lead-free per TI product page. AEC-Q100 qualification not applicable (industrial temperature grade only).
