LTC2260IUJ-14 - 14-Bit 105Msps Ultralow Power 1.8V ADC | ADI
Артикул: LTC2260IUJ-14 ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $33.5 | $33,50 |
| 10 | $30.15 | $301,50 |
| 100 | $26.8 | $2.680,00 |
| 500 | $23.45 | $11.725,00 |
| 1.000 | $20.95 | $20.950,00 |
LTC2260IUJ-14 Обзор
An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples continuous-time analog signals and converts them into discrete digital codes for processing by microcontrollers, DSPs, FPGAs, or software. Within the broader signal chain, the ADC sits between the analog front end (amplifiers, filters, drivers) and the digital back end. Pipelined ADCs like the LTC2260-14 use a multi-stage architecture to achieve high sample rates at moderate resolution while keeping per-stage comparator counts and power dissipation low, making them well suited for high-speed data acquisition, communications, and imaging.
Key features of the LTC2260IUJ-14 include an 800 MHz full-power bandwidth sample-and-hold, selectable input ranges from 1 V P-P to 2 V P-P, an optional data output randomizer to reduce switching spurs, an optional clock duty cycle stabilizer, plus shutdown and nap modes for power management. The serial SPI port allows configuration of output mode, input range, and power-down behavior without external hardware changes.
Architecture-wise, the part is pin-compatible with the 12-bit LTC2260-12 and with the higher/lower-speed LTC2261-14 (125 Msps) and LTC2259-14 (80 Msps) variants, simplifying platform design across resolutions. The ultralow 106 mW dissipation makes it useful for thermally constrained embedded systems and portable instruments.
Typical applications include communications baseband receivers, high-speed imaging and instrumentation, software-defined radios, portable test and measurement, and medical ultrasound front-end boards where 14-bit dynamic range and 105 Msps sample rate offer a strong speed/resolution/power balance.
When designing with this ADC, ensure the analog inputs are driven by a low-noise, low-distortion amplifier capable of settling within one aperture window, and keep the analog/digital ground returns separate to limit coupling. Decouple the analog supply with low-ESR ceramic capacitors close to the AVDD pins to preserve SFDR.
This page synthesizes distributor pricing, parametric drop-in alternatives within the same QFN-40 (6x6) family, and practical design notes that are not consolidated in the manufacturer datasheet alone.
Аналоги без доработки для LTC2260IUJ-14 — 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 LTC2260IUJ-14 (тот же форм-фактор и посадочное место) — отличается по Package, RoHS Status, Input Type, Power-Saving Modes, Sample Rate.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
LTC2260CUJ-14#PBF
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
LTC2261IUJ-14#PBF
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
LTC2259IUJ-14#PBF
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
LTC2258IUJ-14#PBF
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
LTC2260IUJ-14#TRPBF
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
LTC2260IUJ-14 Максимальные параметры и электрические характеристики
| Разрешение | 14 bit |
| Sample Rate | 105 Msps |
| Number of Input Channels | 1 |
| Architecture | Pipelined |
| Supply Voltage (Analog/Digital) | 1.8 V (single supply) |
| Power Consumption | 106 mW at 105 Msps |
| INL (typical) | ±1 LSB |
| DNL (typical) | ±0.3 LSB |
| Transition Noise | 1.2 LSB RMS |
| Missing Codes | None over temperature |
| Input Range (selectable) | 1 V P-P to 2 V P-P |
| Full-Power Bandwidth | 800 MHz |
| Output Modes | CMOS, DDR CMOS, DDR LVDS |
| Output Supply Range | 1.2 V to 1.8 V (CMOS) |
| Configuration Interface | Serial SPI |
| Power-Saving Modes | Shutdown, Nap |
| Optional Features | Data output randomizer, clock duty cycle stabilizer |
| Корпус | 40-QFN (6x6 mm) |
| Pin/Package Compatibility | Pin-compatible with LTC2260-12, LTC2261-14, LTC2259-14 |
| Диапазон рабочих температур | -40 C to +85 C (Industrial, IUJ suffix) |
| Тип монтажа | Surface Mount |
| Статус RoHS | Compliant (#PBF suffix) |
Конфигурация выводов LTC2260IUJ-14
| Контакт 1 | GND — Ground |
| Контакт 2 | AIN+ — Differential analog input positive |
| Контакт 3 | AIN- — Differential analog input negative |
| Контакт 4 | VCM — Common-mode voltage output (approx mid-supply) |
| Контакт 5 | GND — Ground |
| Контакт 6 | REFH — Reference high decoupling node |
| Контакт 7 | REFL — Reference low decoupling node |
| Контакт 8 | GND — Ground |
| Контакт 9 | AVDD — 1.8 V analog supply |
| Контакт 10 | GND — Ground |
| Контакт 11 | CLK+ — Differential clock input positive |
| Контакт 12 | CLK- — Differential clock input negative |
| Контакт 13 | OGND — Output driver ground |
| Контакт 14 | OVDD — Output driver supply (1.2 V to 1.8 V) |
| Контакт 15 | OE — Output enable (active high) / SDIO for SPI |
| Контакт 16 | D0-/D0 — Data output bit 0 (DDR mode: negative edge) |
| Контакт 17 | D0+/NC — Data output bit 0 positive edge (or NC depending on mode) |
| Контакт 18 | D1-/D1 — Data output bit 1 |
| Контакт 19 | D1+/NC — Data output bit 1 positive edge |
| Контакт 20 | D2-/D2 — Data output bit 2 |
| Контакт 21 | D2+/NC — Data output bit 2 positive edge |
| Контакт 22 | D3-/D3 — Data output bit 3 |
| Контакт 23 | D3+/NC — Data output bit 3 positive edge |
| Контакт 24 | D4-/D4 — Data output bit 4 |
| Контакт 25 | D4+/NC — Data output bit 4 positive edge |
| Контакт 26 | D5-/D5 — Data output bit 5 |
| Контакт 27 | D5+/NC — Data output bit 5 positive edge |
| Контакт 28 | D6-/D6 — Data output bit 6 |
| Контакт 29 | D6+/NC — Data output bit 6 positive edge |
| Контакт 30 | D7-/D7 — Data output bit 7 |
| Контакт 31 | D7+/NC — Data output bit 7 positive edge |
| Контакт 32 | D8-/D8 — Data output bit 8 |
| Контакт 33 | D8+/NC — Data output bit 8 positive edge |
| Контакт 34 | D9-/D9 — Data output bit 9 |
| Контакт 35 | D9+/NC — Data output bit 9 positive edge |
| Контакт 36 | D10-/D10 — Data output bit 10 |
| Контакт 37 | D10+/NC — Data output bit 10 positive edge |
| Контакт 38 | D11-/D11 — Data output bit 11 |
| Контакт 39 | D11+/NC — Data output bit 11 positive edge |
| Контакт 40 | D12-/D12 — Data output bit 12 |
| Контакт 41 | D12+/NC — Data output bit 12 positive edge |
| Контакт 42 | D13-/D13 — Data output bit 13 |
| Контакт 43 | D13+/NC — Data output bit 13 positive edge |
| Контакт 44 | OF-/FRAME — Output flag / FRAME indicator |
| Контакт 45 | CS — SPI chip select (active low) |
| Контакт 46 | SCK — SPI serial clock |
| Контакт 47 | SDO — SPI serial data output |
| Контакт 48 | GND — Exposed pad ground (thermal pad on bottom of QFN) |
Типичное применение
LTC2260IUJ-14 подходит для 6 применениеs: Communications Baseband Receiver, Software-Defined Radio (SDR) Front End, Medical Ultrasound Beamformer, Portable Test & Measurement Instrumentation, High-Speed Imaging & Machine Vision, Industrial Data Acquisition Systems.
Communications Baseband Receiver
The LTC2260IUJ-14 fits baseband digitization of cellular and wireless infrastructure receivers where 14-bit resolution and 105 Msps sampling capture complex I/Q waveforms with adequate dynamic range. Its selectable DDR LVDS outputs and separate 1.2-1.8 V OVDD simplify interfacing to modern FPGAs such as Xilinx and Altera devices without external level translation, while the 106 mW dissipation supports dense multi-channel receiver cards.
Рекомендуется
Software-Defined Radio (SDR) Front End
The LTC2260IUJ-14's 800 MHz full-power analog bandwidth allows direct undersampling of IF frequencies well above the 52.5 MHz Nyquist limit, enabling wideband SDR capture with a single ADC channel. Its 1.2 LSB RMS transition noise preserves spurious-free dynamic range for narrowband signal extraction, while 106 mW dissipation is friendly to battery-powered SDR platforms and cognitive-radio prototypes.
Рекомендуется
Medical Ultrasound Beamformer
Ultrasound front-end boards require low-power, high-resolution ADCs to digitize echoes across many channels simultaneously. The LTC2260IUJ-14's 14-bit dynamic range and 106 mW dissipation per channel enable dense channel-count boards without aggressive thermal management, while the pin-compatible LTC2261-14 (125 Msps) and LTC2259-14 (80 Msps) allow tiered channel sampling rates within a single PCB platform.
Рекомендуется
Portable Test & Measurement Instrumentation
Handheld oscilloscopes, spectrum analyzers, and data-acquisition modules benefit from the LTC2260IUJ-14's 1.8 V single-supply operation and 106 mW dissipation, which together extend battery run-time while preserving 14-bit measurement accuracy. The optional clock duty-cycle stabilizer relaxes FPGA source-synchronous timing margins, allowing lower-cost clocking in field-deployed instruments.
Рекомендуется
High-Speed Imaging & Machine Vision
Line-scan and area-scan cameras requiring 14-bit pixel depth at high frame rates leverage the LTC2260IUJ-14's 105 Msps capability and DDR LVDS output for fast off-board transfer. The 800 MHz input bandwidth supports CCD/CIS analog front ends with minimal group-delay variation, while shutdown/nap modes reduce power when scan lines are idle, conserving overall system energy budget.
Рекомендуется
Industrial Data Acquisition Systems
Multi-channel vibration, sonar, and process-control data-acquisition cards benefit from the LTC2260IUJ-14's industrial -40 C to +85 C temperature rating and pin-compatible family, letting one PCB support 80/105/125 Msps configurations. The serial SPI port enables in-system gain and output-mode reconfiguration during factory calibration cycles without hardware changes.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для LTC2260IUJ-14 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | LTC2260CUJ-14#PBF | LTC2261IUJ-14#PBF | LTC2259IUJ-14#PBF | LTC2258IUJ-14#PBF |
|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 40-QFN (6x6) | 40-QFN (6x6) - same | 40-QFN (6x6) - same | 40-QFN (6x6) - same | 40-QFN (6x6) - same |
| Resolution | 14 bit | 14 bit | 14 bit | 14 bit | 14 bit |
| Sample Rate | 105 Msps | 105 Msps | 125 Msps | 80 Msps | 65 Msps |
| Supply Voltage | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
| Temperature Grade | Industrial -40 C to +85 C | Commercial 0 C to +70 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C |
| Output Modes | CMOS / DDR CMOS / DDR LVDS | CMOS / DDR CMOS / DDR LVDS | CMOS / DDR CMOS / DDR LVDS | CMOS / DDR CMOS / DDR LVDS | CMOS / DDR CMOS / DDR LVDS |
Ключевые отличия
- Pin-compatible with 12-bit and 12/14-bit speed siblings (против LTC2260IUJ-12 (12-bit))
- Ultralow 106 mW dissipation (против LTC2261IUJ-14 (125 Msps))
- Selectable 1 V P-P / 2 V P-P input range via SPI (против LTC2258IUJ-14 (65 Msps))
Заметки по проектированию
Decouple AVDD with at least 1 x 10 uF bulk + 1 x 0.1 uF X7R ceramic close to each AVDD pin; place OVDD decoupling (1.2-1.8 V) similarly. The 106 mW dissipation across multiple channels quickly accumulates, so plan copper pour under the exposed pad to keep junction temperature within the -40 C to +85 C industrial envelope. Estimated: with theta_JA ~28 C/W for the 6x6 QFN and 106 mW dissipation, junction rise ~3 C above ambient - well within limits but rises proportionally if multiple ADCs are stacked.
Keep analog input traces matched and length-balanced to preserve 800 MHz full-power bandwidth; use 100-ohm differential routing for AIN+/AIN- and CLK+/CLK-. Route digital outputs (DDR LVDS or CMOS) on an inner layer separated by a solid ground plane to limit digital-to-analog coupling. Place the reference decoupling caps (REFH/REFL) within 2 mm of the package to avoid reference-noise degradation of SFDR.
Do not float the OE/CS pin - tie CS low only after configuring output mode via SPI. Mismatched impedance at the analog input causes INL degradation at high input frequencies; verify transformer or amplifier source impedance matches the 1 V P-P / 2 V P-P setting. Driving the analog input outside 0 to AVDD range risks latch-up; clamp with protection diodes for hot-plug-capable front ends.
Информация о соответствии
#PBF suffix denotes RoHS-compliant / lead-free. REACH SVHC, halogen-free, and conflict-minerals declarations must be obtained from Analog Devices' environmental portal. Part is not AEC-Q100 qualified (industrial, not automotive).
