ADS822E - 10-Bit, 40-MSPS Pipelined ADC | Texas Instruments
MPN： ADS822E ✓ 啟用中ADS822E 概覽
An ADC is a data-acquisition semiconductor that samples an analog voltage and converts it into a digital code. A pipelined ADC uses multiple internal stages that operate concurrently after the pipeline is filled. Compared with flash converters, this architecture can provide useful resolution at lower power and cost. The ADS822E belongs to the ADC hierarchy, integrates an analog input stage and digital quantizer, and supports acquisition, instrumentation, communications, and embedded measurement systems.
The verified distributor data identifies a 10-bit converter with one input, one pipelined stage, and a 40-MSPS sampling rate. Its single-ended input supports the common source configuration used in many sensor and signal-chain systems, while differential operation can improve common-mode rejection when supported by the complete ADC implementation. The part uses a single +5 V supply according to the supplied comparison source, and the verified listing describes internal or external reference options.
The ADS822E family is available in an SSOP-28 package. The manufacturer product page states that ADS822, ADS823, ADS825, ADS826, and ADS828 are pin-for-pin compatible, with the higher-speed members offering upgrade paths from the ADS822/ADS825 family. This compatibility is useful when a design needs more sampling rate without changing the board footprint or parallel interface layout.
Typical applications include industrial sensor acquisition, communications infrastructure, portable measurement systems, medical instrumentation, and embedded data-acquisition platforms. Because the converter has a 40-MSPS maximum sampling rate, it is appropriate for waveforms within its Nyquist bandwidth rather than very high-frequency RF signals requiring a substantially faster converter. Designers should verify input range, timing, reference stability, output coding, and acquisition settling time against the manufacturer datasheet before finalizing a system.
For PCB design, keep analog input, reference, supply, and digital return paths well controlled. The SSOP-28 device benefits from short analog traces, adequate bypassing, and separation between sensitive analog nodes and fast digital output lines. Use the manufacturer datasheet for the complete pinout, timing diagrams, electrical limits, and application-specific reference configuration.
直接替換替代品，適用於 ADS822E — 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： ADS822E （相同外形與佔位） — 差異在於 Package, Input Type, Resolution, Architecture, RoHS Status.
ADS823
✅ 直接替換📋 參考替代品（不在目錄中）
ADS825
✅ 直接替換📋 參考替代品（不在目錄中）
ADS826
✅ 直接替換📋 參考替代品（不在目錄中）
ADS8284IRGCR
✅ 直接替換聯絡詢價
查看資料表 →ADS822E 最大額定值與電氣特性
| 解析度 | 10 bit |
| 取樣率 | 40 MSPS |
| Input Channels | 1 input |
| Converter Architecture | Pipelined |
| Input Type | Single-ended or differential |
| Reference | Internal or external |
| 供應電壓 | +5 V |
| 封裝 | 28-pin SSOP |
| Package Type | SSOP-28 |
| Output Interface | Parallel output |
| 安裝類型 | Surface mount |
| Sampling Frequency | 40 MHz |
| RoHS 狀態 | unknown |
| REACH Status | unknown |
| Automotive Qualification | unknown |
ADS822E ssop-28 腳位配置指南
ADS822E（ssop-28 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： ADS822E.
請參閱 資料表 以查看完整腳位配置。
典型應用
ADS822E 適用於 6 應用s: Industrial Sensor Acquisition, Communications Signal Monitoring, Medical Instrumentation, Embedded Data Acquisition, Portable Measurement Equipment, Test and Measurement Equipment.
Industrial Sensor Acquisition
The ADS822E fits industrial sensor acquisition when the target signals require 10-bit resolution and up to 40 MSPS conversion. It can accept single-ended or differential input configurations, allowing designers to match the interface to sensor outputs, instrumentation amplifiers, or conditioned analog channels. Place the ADC behind the appropriate input-conditioning network and use the internal or external reference capability according to the required stability. The 28-pin SSOP also keeps the converter compact for multi-channel measurement boards. Designers should verify the input range, acquisition timing, reference noise, and PCB grounding against the manufacturer datasheet before production.
推薦
Communications Signal Monitoring
ADS822E is suitable for communications signal monitoring and envelope or waveform sampling when the system needs rapid conversion without requiring a flash ADC. Its 40-MSPS sampling capability supports moderate-bandwidth digital monitoring, while the 10-bit output provides a practical resolution-versus-data-rate balance. Differential operation can improve behavior when the analog source introduces common-mode noise, provided the input network is designed for the converter's electrical limits. Use controlled clocking and output timing, and validate the maximum input bandwidth rather than assuming it equals the sampling rate.
推薦
Medical Instrumentation
The ADS822E can be evaluated for medical instrumentation front ends when the required bandwidth is compatible with a 10-bit, 40-MSPS converter and the application does not require higher resolution. Its differential-input capability is useful for rejecting common-mode disturbance in analog sensor and diagnostic chains. The ADC should be paired with a low-noise reference, suitable protection, isolation where required, and carefully routed analog and digital sections. Medical-system design must verify regulatory requirements, patient-safety architecture, accuracy, and leakage requirements separately; those claims are not established by the supplied verified data.
推薦
Embedded Data Acquisition
ADS822E is appropriate for embedded data-acquisition systems that need a parallel ADC with a compact 28-pin SSOP footprint. A controller or FPGA can capture the digital output while the converter samples conditioned analog data at up to 40 MSPS. The parallel interface simplifies deterministic data acquisition compared with serial-output converters, but it increases pin count and requires controlled routing between the ADC and digital fabric. Keep the clock, reference, analog input, and return paths short, and use the datasheet timing diagrams to define read timing and settling margins.
推薦
Portable Measurement Equipment
The ADS822E can support portable measurement equipment where a 10-bit converter and 40-MSPS sampling rate provide sufficient resolution and speed in a compact package. Its single-ended input mode can simplify connection to a conditioned sensor, while differential mode can improve noise immunity when the source is balanced. The SSOP-28 package supports compact PCB construction, although external bypassing, reference conditioning, and signal protection remain essential. Verify operating temperature, power consumption, input range, and battery-compatible supply requirements in the current TI documentation before finalizing a portable design.
推薦
Test and Measurement Equipment
ADS822E is relevant to test and measurement equipment requiring high-speed acquisition of analog waveforms with 10-bit resolution. It can digitize repetitive signals when the input bandwidth, settling time, and clocking requirements are compatible with the 40-MSPS conversion rate. The parallel output supports direct capture by an FPGA or embedded controller, reducing the need for a separate high-speed serialization stage. A practical design should include input attenuation or amplification, anti-alias filtering, a stable reference, and calibration strategy. The manufacturer datasheet must define the exact input range and dynamic-performance limits for the intended instrumentation class.
推薦
推薦產品摘要
工程參考資料，適用於 ADS822E — 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 | ADS823 | ADS825 | ADS826 | ADS828 | ADS825E |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 28-pin SSOP | SSOP-28 | SSOP-28 | SSOP-28 | SSOP-28 | SSOP-28 |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit |
| Input Configuration | Single-ended or differential | Single-ended or differential | Single-ended or differential | Single-ended or differential | Single-ended or differential | Single-ended or differential |
| Supply Voltage | +5 V | +5 V | +5 V | +5 V | +5 V | +5 V |
| Output Interface | Parallel | Parallel | Parallel | Parallel | Parallel | Parallel |
主要差異化特點
- 40-MSPS conversion rate within a 10-bit pipelined ADC (對比ADS828)
- Same-package upgrade path (對比ADS823)
- Compact 28-pin SSOP integration (對比ADS828)
設計說明
Route the analog input and reference nets as short, controlled-impedance paths and place input conditioning, anti-alias filtering, and bypass capacitors close to the ADS822E pins. The 28-pin SSOP combines analog and digital signals, so separate sensitive input routing from the parallel output bus. Use a continuous ground plane where practical, provide a clean return path beneath digital output activity, and verify the layout against the TI application guidance.
Treat the 40-MSPS sampling specification as a clock and acquisition requirement, not as automatic permission for arbitrary high-frequency analog signals. Establish input bandwidth, settling time, and output timing from the manufacturer datasheet. For differential operation, use symmetric routing and matched input components, and terminate or level-shift outputs appropriately for the FPGA or controller receiving the 10-bit parallel bus.
Do not infer the complete pinout, input range, SNR, nonlinearity, latency, or power consumption from distributor search snippets. Those values are marked [DATA_NEEDED] in this record because they were not present in the supplied verified data. Confirm the exact ADS822E orderable suffix and package against the current TI ADS822 datasheet before layout release or production purchasing.
合規資訊
The supplied verified web data does not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status for ADS822E. Obtain current manufacturer compliance documentation for the exact orderable part.