ADS6148IRGZ25 - 14-Bit 250 MSPS ADC, DDR LVDS | Texas Instruments
부품 번호: ADS6148IRGZ25 ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 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 개요
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.
드롭인 대체품: ADS6148IRGZ25 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ADS6148IRGZ25 (동일 폼 팩터 및 풋프린트) — 차이점: Package, Resolution, Analog Supply Voltage, Input Type, Operating Temperature Range.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
ADS6148IRGZT
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
ADS6129IRGZ25
✅ 드롭인✓ 재고 있음
$23.1 / 개
데이터시트 보기 →ADS6129IRGZT
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
ADS5547IRGZT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ADS6144IRGZT
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
ADS6148IRGZ25 최대 정격 & 전기적 특성
| 분해능 | 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) |
| 패키지 | 48-VQFN (RGZ) 7x7 mm with exposed thermal pad |
| Package Code | HVQCCN / QFN-48 |
| 핀 수 | 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) |
| 실장 유형 | Surface Mount |
| RoHS 상태 | Compliant |
| Pin Compatibility | Pin-compatible with ADS5547 family |
ADS6148IRGZ25 핀 구성
| 핀 1 | AVDD — 3.3 V analog supply |
| 핀 2 | AGND — Analog ground |
| 핀 3 | INP — Differential analog input (positive) |
| 핀 4 | INN — Differential analog input (negative) |
| 핀 5 | VCM — Common-mode voltage reference |
| 핀 6 | VREF — Voltage reference (decouple externally) |
| 핀 7 | REFT — Internal reference top (decouple externally) |
| 핀 8 | REFB — Internal reference bottom (decouple externally) |
| 핀 9 | CLKIN — Differential clock input (positive) |
| 핀 10 | CLKINB — Differential clock input (negative) |
| 핀 11 | DVDD — Digital supply (1.8 V or 3.3 V) |
| 핀 12 | DGND — Digital ground |
| 핀 13 | SDATA — SPI data input |
| 핀 14 | SCLK — SPI clock |
| 핀 15 | SEN — SPI enable (active low) |
| 핀 16 | RESET — Reset (active low) |
| 핀 17 | DRVDD — Output driver supply |
| 핀 18 | DRGND — Output driver ground |
| 핀 19 | D0+/D0 — Data output 0 (LVDS positive or CMOS) |
| 핀 20 | D0- — Data output 0 (LVDS negative) |
| 핀 21 | D1+/D1 — Data output 1 (LVDS positive or CMOS) |
| 핀 22 | D1- — Data output 1 (LVDS negative) |
| 핀 23 | D2+/D2 — Data output 2 (LVDS positive or CMOS) |
| 핀 24 | D2- — Data output 2 (LVDS negative) |
| 핀 25 | D3+/D3 — Data output 3 (LVDS positive or CMOS) |
| 핀 26 | D3- — Data output 3 (LVDS negative) |
| 핀 27 | D4+/D4 — Data output 4 (LVDS positive or CMOS) |
| 핀 28 | D4- — Data output 4 (LVDS negative) |
| 핀 29 | D5+/D5 — Data output 5 (LVDS positive or CMOS) |
| 핀 30 | D5- — Data output 5 (LVDS negative) |
| 핀 31 | D6+/D6 — Data output 6 (LVDS positive or CMOS) |
| 핀 32 | D6- — Data output 6 (LVDS negative) |
| 핀 33 | D7+/D7 — Data output 7 (LVDS positive or CMOS) |
| 핀 34 | D7- — Data output 7 (LVDS negative) |
| 핀 35 | D8+/D8 — Data output 8 (LVDS positive or CMOS) |
| 핀 36 | D8- — Data output 8 (LVDS negative) |
| 핀 37 | D9+/D9 — Data output 9 (LVDS positive or CMOS) |
| 핀 38 | D9- — Data output 9 (LVDS negative) |
| 핀 39 | D10+/D10 — Data output 10 (LVDS positive or CMOS) |
| 핀 40 | D10- — Data output 10 (LVDS negative) |
| 핀 41 | D11+/D11 — Data output 11 (LVDS positive or CMOS) |
| 핀 42 | D11- — Data output 11 (LVDS negative) |
| 핀 43 | D12+/D12 — Data output 12 (LVDS positive or CMOS) |
| 핀 44 | D12- — Data output 12 (LVDS negative) |
| 핀 45 | D13+/D13 — Data output 13 (LVDS positive or CMOS) |
| 핀 46 | D13- — Data output 13 (LVDS negative) |
| 핀 47 | OVR — Out-of-range / over-range flag |
| 핀 48 | NC — No connection |
일반적인 애플리케이션
ADS6148IRGZ25 적합 용도: 6 애플리케이션s: 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.
추천
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.
추천
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.
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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.
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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.
추천
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.
추천
추천 제품 요약
엔지니어링 참조 데이터: ADS6148IRGZ25 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | 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) |
주요 차별점
- Pin-compatible 48-VQFN family for fast resolution/sample-rate scaling (vs ADS5547 family)
- 250 MSPS at 14-bit resolution (vs ADS6129IRGZ25)
- DDR LVDS output mode for reduced FPGA pin count (vs ADS6144IRGZT)
설계 노트
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.
규정 준수 정보
RoHS compliant and lead-free per TI product page. AEC-Q100 qualification not applicable (industrial temperature grade only).
