ADS7067 - 16-Bit 8-Channel 800kSPS SAR ADC | Texas Instruments
Артикул: ADS7067 ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $6.2 | $6,20 |
| 10 | $5.6 | $56,00 |
| 100 | $4.85 | $485,00 |
| 500 | $4.3 | $2.150,00 |
| 1.000 | $3.85 | $3.850,00 |
ADS7067 Обзор
An ADC (analog-to-digital converter) is a mixed-signal device that converts continuous analog voltages into discrete digital codes for digital processing. SAR ADCs are a key subcategory of data converters, using a binary-search algorithm with a capacitive DAC to achieve high resolution and speed at low power. The ADS7067 sits within the precision data-acquisition hierarchy: SAR ADC -> data converter -> mixed-signal IC -> semiconductor.
Key features include 16-bit resolution, 8 multiplexed input channels, and up to 800 kSPS throughput. The integrated capless reference and reference buffer eliminate external reference decoupling, dramatically reducing solution size and BOM count - a decisive advantage in wafer-level-chip-scale designs. Four GPIO pins add configurable digital I/O and alarm functionality without an external MCU expander.
Architecturally, the ADS7067 uses a capacitive DAC with a precision comparator for excellent linearity and low noise. The SPI-compatible serial interface supports daisy-chaining and multi-device configurations, easing integration with microcontrollers and FPGAs in distributed sensing systems.
Typical applications include motor-control current-loop sensing, power monitoring, industrial process control, and battery-powered IoT sensors. The 1.62 x 1.62 mm footprint fits directly under or beside shunt-based sensing circuits, while 800 kSPS throughput captures fast transients in control loops.
Design tip: decouple AVDD and DVDD with 0.1 uF plus 1 uF ceramics placed close to the balls; although the reference is capless, follow datasheet layout guidance for the REF node to preserve 16-bit noise performance.
Аналоги без доработки для ADS7067 — 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 ADS7067 (тот же форм-фактор и посадочное место) — отличается по Architecture, Interface, Mounting Type, Number of Channels, Package.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
ADS7066IYBHR
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ADS7065IYBHR
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
ADS7067IYBHT
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ADS7067 Максимальные параметры и электрические характеристики
| Разрешение | 16 bit |
| Number of Channels | 8 (multiplexed) |
| Частота дискретизации | 800 kSPS |
| Architecture | SAR (successive approximation register) |
| Input Type | Single-ended |
| Reference | Integrated capless reference with buffer |
| Интерфейс | SPI-compatible serial |
| GPIO | 4 configurable GPIOs with alarm function |
| Корпус | 16-DSBGA (1.62 mm x 1.62 mm) |
| Тип монтажа | Surface Mount (wafer-level chip scale) |
| Статус RoHS | Compliant |
Руководство по цоколевке ADS7067 в корпусе 16-dsbga (1.62 mm x 1.62 mm)
Цоколевка для ADS7067 (корпус 16-dsbga (1.62 mm x 1.62 mm)). Этот аналоговый компонент имеет выводы входа, выхода и питания. Обратитесь к техническому описанию производителя для конфигураций выводов балансировки нуля, коррекции и разрешения. Идеально подходит для схем обработки сигналов и усилителей.
Нет подробных данных о распиновке для ADS7067.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
ADS7067 подходит для 6 применениеs: Motor Control Current Sensing, Power Monitoring, Battery-Powered IoT Sensors, Industrial Process Control, Test and Measurement, Automotive Body and Power Supervision.
Motor Control Current Sensing
The ADS7067's 800 kSPS throughput and 8 multiplexed channels let a single ADC sample all three phase currents plus DC-bus voltage in a FOC motor-control loop without a bottleneck. The 1.62 mm x 1.62 mm 16-DSBGA package fits directly beside shunt or amplifier outputs. Its SAR architecture provides deterministic conversion latency, simplifying control-loop timing; GPIOs can drive alarm flags for overcurrent events.
Рекомендуется
Power Monitoring
For DC power monitoring, the ADS7067 digitizes bus voltage, current-sense amplifier output, and auxiliary rails on its 8 channels. The integrated capless reference removes an external reference IC, improving accuracy stability and reducing BOM. 800 kSPS enables transient and inrush capture that slower delta-sigma converters miss, while SPI daisy-chaining supports monitoring multiple boards from one MCU interface.
Рекомендуется
Battery-Powered IoT Sensors
The ADS7067 suits battery IoT nodes because throughput is SPI-programmable, letting firmware drop sample rate to cut average power. The 1.62 mm chip-scale package and capless reference minimize board area and quiescent BOM draw. Four GPIOs replace an external I/O expander for sensor-enable or alarm lines, further reducing cost and standby current in distributed multi-sensor nodes.
Рекомендуется
Industrial Process Control
In PLC analog input modules, the ADS7067 converts up to 8 sensor channels - 4-20 mA receiver outputs, pressure and temperature signals - through one SPI link. 16-bit resolution resolves small process deviations, and the 800 kSPS rate supports fast scan rates across all channels. The capless reference maintains accuracy without periodic external-reference calibration in dense module designs.
Рекомендуется
Test and Measurement
Portable and handheld instruments benefit from the ADS7067's combination of 16-bit accuracy, 800 kSPS sampling, and tiny chip-scale footprint. The 8 muxed channels let one device scan multiple test points, while the SPI register map allows firmware-controlled range and sequencing. Low conversion latency of the SAR architecture yields deterministic sampling intervals required for waveform reconstruction.
Рекомендуется
Automotive Body and Power Supervision
In automotive modules the ADS7067 supervises multiple rails and sensor outputs through its 8 channels, with GPIO alarm thresholds providing autonomous over/under-voltage flagging to the MCU. The small wafer-scale package suits densely packed body-control and battery-management boards. SPI daisy-chaining lets several ADCs share one isolated controller interface, cutting wiring complexity.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для ADS7067 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | ADS7066IYBHR | ADS7065IYBHR | ADS7067IYBHT |
|---|---|---|---|---|
| Package | 16-DSBGA (1.62x1.62 mm) | 16-DSBGA (1.62x1.62 mm) - same | 16-DSBGA (1.62x1.62 mm) - same | 16-DSBGA (1.62x1.62 mm) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 16 bit | 16 bit | 16 bit | 16 bit |
| Channels | 8 | 4 | 4 | 8 |
| Max Throughput | 800 kSPS | 250 kSPS | 800 kSPS | 800 kSPS |
| Reference | Integrated capless + buffer | Integrated capless + buffer | Integrated capless + buffer | Integrated capless + buffer |
| GPIOs | 4 | 4 | 4 | 4 |
| Interface | SPI (daisy-chain) | SPI (daisy-chain) | SPI (daisy-chain) | SPI (daisy-chain) |
Ключевые отличия
- Double the channels and 3.2x the speed of ADS7066 (против ADS7066IYBHR)
- Capless integrated reference eliminates external reference IC (против ADS131M08)
- Full 800 kSPS retained in 4-channel sibling (против ADS7065IYBHR)
Заметки по проектированию
Place 0.1 uF and 1 uF ceramic decoupling capacitors immediately adjacent to the AVDD and DVDD balls of the 16-DSBGA package; with a 1.62 mm x 1.62 mm footprint, ball-pitch routing is extremely tight, so define the footprint per the TI datasheet land-pattern table before layout. Although the reference is capless, minimize capacitance coupling into the REF node per datasheet layout section.
Keep SPI traces short (<10 cm) and series-terminate SCLK to reduce ringing at high SPI clocks. Because AIN inputs are multiplexed, ensure the driving source settles within the acquisition window - use an RC with a buffer op-amp (e.g., OPA2192) when source impedance exceeds the datasheet recommendation, or measured accuracy at 800 kSPS will degrade.
Firmware migration from ADS7065/ADS7066 to ADS7067 fails if channel-scan code assumes 4 channels - update the multiplexer sequencing and verify GPIO alarm register defaults. Do not exceed datasheet absolute maximum ratings on AIN with respect to ground; unprotected mux inputs are sensitive to transients in motor-drive environments - add clamp/protection per TI analog front-end app notes.
Информация о соответствии
RoHS compliant and lead-free per TI product page and distributor listings. AEC-Q100 status not stated in provided data.
