ADS822E - 10-Bit, 40-MSPS Pipelined ADC | Texas Instruments
MPN: ADS822E ✓ Hoạt độngADS822E Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho ADS822E — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ADS822E (cùng hình factor và footprint) — khác nhau ở Package, Input Type, Resolution, Architecture, RoHS Status.
ADS823
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS825
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS826
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS8284IRGCR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADS825E
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADS822E Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 10 bit |
| Tỷ lệ lấy mẫu | 40 MSPS |
| Input Channels | 1 input |
| Converter Architecture | Pipelined |
| Input Type | Single-ended or differential |
| Reference | Internal or external |
| Điện áp cung cấp | +5 V |
| Hộp | 28-pin SSOP |
| Package Type | SSOP-28 |
| Output Interface | Parallel output |
| Kiểu lắp đặt | Surface mount |
| Sampling Frequency | 40 MHz |
| Trạng thái RoHS | unknown |
| REACH Status | unknown |
| Automotive Qualification | unknown |
Hướng dẫn cấu hình chân ADS822E ssop-28
Cấu hình chân cho ADS822E (ssop-28 gói). Thành phần số hiệu này có chân đầu vào, đầu ra và nguồn cung cấp. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết cấu hình chân bù, bù trừ và chân kích hoạt. Hoàn hảo cho điều kiện tín hiệu và mạch khuếch đại.
Không có dữ liệu chân cụ thể sẵn có cho ADS822E.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
ADS822E phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADS822E — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- 40-MSPS conversion rate within a 10-bit pipelined ADC (vsADS828)
- Same-package upgrade path (vsADS823)
- Compact 28-pin SSOP integration (vsADS828)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.