ADS824E - 10-Bit 70 MSPS ADC | Texas Instruments
MPN： ADS824E ✓ 啟用中ADS824E 概覽
An ADC is an integrated circuit that samples an analog voltage and converts it into a digital code for processing, measurement, or communication. The ADS824E belongs to the ADC/DAC hierarchy and is suited to compact data-acquisition and signal-processing systems where sampling speed, input flexibility, and low power are more important than very high resolution. Its single-ended input supports single-ended signals, while differential operation can improve common-mode rejection and signal integrity when the source is balanced.
The ADS824E combines a 70 MSPS conversion rate with a 10-bit quantizer and programmable analog input range. The verified feature summary identifies internal or external reference options, programmable input range, and power-down operation as useful controls for system integration. Its +3 V digital output capability can simplify interfacing to modern digital logic, while the single +5 V analog supply keeps the power architecture compact. The 315 mW power figure makes it relevant to power-conscious acquisition equipment.
The converter is designed for applications requiring moderate resolution and high sampling throughput, including industrial instrumentation, communications receivers, waveform capture, sensor interfaces, and embedded control. Differential input can be preferred for noisy analog environments, while single-ended operation can simplify front-end design when the source is referenced to ground. The 28-SSOP package provides a conventional surface-mount footprint, but the exact pinout and mechanical drawing should be confirmed against the manufacturer datasheet before layout.
Designers should treat the ADC input as a high-bandwidth analog signal path. Keep input routing short, provide a suitable reference and bypass network, and observe the supply, clock, grounding, and digital-output requirements in the datasheet. Do not assume that a converter with the same family name is a drop-in replacement unless the package, pin mapping, reference configuration, input range, timing, and electrical limits all match.
This page combines verified ADS824E specifications, distributor availability information, package details, and practical replacement guidance. It is intended to help engineers evaluate the converter quickly while preserving the distinction between verified data, sourced alternatives, and parameters that require confirmation.
直接替換替代品，適用於 ADS824E — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ADS824E （相同外形與佔位） — 差異在於 Package, Mounting Type, Resolution, Analog Supply, Architecture.
ADS824E 最大額定值與電氣特性
| 解析度 | 10 bit |
| 取樣率 | 70 MSPS |
| SNR | 59 dB |
| SFDR | 70 dB |
| Power Consumption | 315 mW |
| Reference | Internal or external |
| Analog Input | Single-ended or differential |
| Programmable Input Range | Programmable; verified data identifies 2 Vp-p option |
| Differential Nonlinearity | 0.3 LSB |
| Analog Supply | +5 V single supply |
| Digital Output | +3 V capable |
| Power-Down | Supported |
| 封裝 | 28-SSOP |
| Terminal Count | 28 terminals |
| Temperature Grade | Industrial |
| 安裝類型 | Surface mount |
| Input Terminals | Gull-wing package |
ADS824E 28-ssop 腳位配置指南
ADS824E（28-ssop 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： ADS824E.
請參閱 資料表 以查看完整腳位配置。
典型應用
ADS824E 適用於 6 應用s: Industrial Waveform Acquisition, Communications Receiver Front End, Sensor Signal Digitization, Portable Test and Measurement Equipment, Digital Control and Monitoring Loops, Data Acquisition with Remote Interfaces.
Industrial Waveform Acquisition
ADS824E fits industrial waveform-acquisition systems that need 70 MSPS sampling and 10-bit conversion without moving to a higher-power or higher-resolution converter. Its single-ended or differential input flexibility allows the same design approach to serve grounded sensors and balanced front ends. The 59 dB SNR and 70 dB SFDR figures provide useful baseline performance for moderate-amplitude measurements, while 315 mW power supports compact acquisition hardware. Confirm analog bandwidth, input range, clock jitter, and reference accuracy against the manufacturer datasheet before setting the system gain plan.
推薦
Communications Receiver Front End
ADS824E can serve as the sampling element in a communications receiver or IF-processing path requiring 70 MSPS throughput and flexible input topology. Differential input is useful when the receiver presents a balanced signal and common-mode noise must be controlled, while single-ended input can simplify a less demanding front end. The 10-bit quantizer is appropriate for intermediate digital processing where system gain and filtering can recover usable signal quality. The verified data does not specify input bandwidth, common-mode limits, or clock-jitter requirements, so those must be checked in the full datasheet.
推薦
Sensor Signal Digitization
ADS824E is suitable for digitizing moderate-bandwidth sensor signals when the system needs faster sampling than a low-rate ADC but does not require resolutions above 10 bits. Selectable single-ended and differential inputs help accommodate different sensor front ends, and the internal or external reference option supports either standalone or shared-reference architectures. The 0.3 LSB DNL specification is a useful starting point for transfer-characteristic analysis. Sensor excitation, anti-alias filtering, input settling, and reference noise still need to be engineered around the converter's acquisition requirements.
推薦
Portable Test and Measurement Equipment
ADS824E can support portable measurement instruments where 70 MSPS conversion, selectable input modes, and 315 mW power are useful constraints. The device allows a single analog capture architecture to handle single-ended probes or differential circuits, reducing the need for separate converter packages. The 10-bit result can feed a controller, FPGA, or DSP for filtering and display processing. Because the verified material does not specify package power derating, clock requirements, or digital output timing, enclosure temperature and battery-budget calculations must use the full manufacturer documentation.
推薦
Digital Control and Monitoring Loops
ADS824E can digitize control or monitoring variables in systems that need deterministic, high-rate feedback but can use a 10-bit result. The 70 MSPS sampling rate provides temporal resolution for fast plant variables, and differential operation can help preserve signal quality in electrically noisy environments. Power-down capability may reduce consumption when the acquisition function is not continuously required, although the exact timing behavior must be taken from the datasheet. External filtering, scaling, and isolation are still required to protect the input from transients and out-of-range voltages.
推薦
Data Acquisition with Remote Interfaces
ADS824E fits distributed acquisition modules that convert a local analog measurement into a 10-bit digital stream for remote processing. Its 70 MSPS rate is useful when the module must sample transient or high-bandwidth signals, while internal or external reference selection helps integrate multiple converters. A differential input arrangement can reduce sensitivity to ground differences in longer systems, but isolation and common-mode limits must be verified. The verified data does not establish EMC, isolation, or environmental ratings, so those requirements must be treated as separate design constraints.
推薦
推薦產品摘要
工程參考資料，適用於 ADS824E — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ADS823E |
|---|---|---|
| Resolution | 10 bit | 10 bit |
| Package | 28-SSOP | 28-SSOP |
| Brand | Texas Instruments | Texas Instruments |
主要差異化特點
- High sampling throughput for a 10-bit converter (對比ADS823E)
- Flexible analog input and reference architecture (對比ADS823E)
- Verified converter performance figures (對比ADS823E)
設計說明
Treat the analog input as a high-speed acquisition path. Keep the input trace short, use a controlled return path, place anti-alias or conditioning components close to the converter, and verify settling time against the acquisition timing. Differential operation can improve common-noise rejection, but the driver must have compatible common-mode voltage and output impedance; those limits are not present in the supplied snippets and must be taken from the manufacturer datasheet.
Place bypass capacitors and the analog reference network at the pins identified by the official ADS824E pinout. Keep the clock and digital-output routing away from the analog input and reference nodes, and provide a solid ground connection beneath the converter where the package drawing permits. The verified data confirms a 28-SSOP package but does not provide land-pattern dimensions, so use the official mechanical drawing rather than estimating the footprint.
Do not substitute a same-family ADC based only on resolution and package. Check pin mapping, analog input range, reference voltage, digital output levels, sampling timing, acquisition settling, power-down behavior, and absolute maximum ratings. The sourced ADS823E comparison indicates package and terminal compatibility, but the supplied data does not establish every electrical parameter, so bench validation and manufacturer documentation are required before substitution.
The verified low-power figure is 315 mW, but total converter power still depends on supply voltage, reference implementation, output loading, clocking, and board temperature. Estimate rail current from the actual operating mode and confirm the regulator capacity, bypass network, and thermal rise. A thermal estimate should use measured or datasheet-derived parameters rather than treating the 315 mW figure as a universal maximum under every input condition.
合規資訊
The supplied web data identifies an industrial temperature grade and Texas Instruments ADS824E sourcing information but does not provide verified RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements.