ADS8383IBPFBRG4 - 18-bit 500kSPS Parallel SAR ADC | TI
MPN: ADS8383IBPFBRG4 ✓ Hoạt độngADS8383IBPFBRG4 Tóm tắt
Bộ thay thế dễ dàng lắp đặt cho ADS8383IBPFBRG4 — 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 ADS8383IBPFBRG4 (cùng hình factor và footprint) — khác nhau ở Architecture, Latency, Package, Sample Rate, Resolution.
ADS8383IBPFBR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADS8383IBPFBTG4
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS8383IBPFBT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS8381IBPFBR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADS8383IBPFBRG4 Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 18 bits |
| Sample Rate | 500 kSPS (580 kSPS per Mouser listing) |
| Architecture | Successive Approximation Register (SAR) |
| Number of Input Channels | 1 |
| Input Range | Unipolar, 0 V to VREF |
| Conversion Time | 1.52 us (typical) |
| Latency | Zero (SAR - no pipeline delay) |
| Giao diện | Parallel, 18-/16-/8-bit selectable |
| Analog Supply Voltage | 5 V (single supply) |
| Digital I/O Supply | 3.3 V or 5 V |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| Hộp | 48-TQFP (PFP), 7x7 mm |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Reference | External (recommended up to 4.096 V) |
Hướng dẫn cấu hình chân ADS8383IBPFBRG4 48-tqfp (pfp), 7x7 mm
Cấu hình chân cho ADS8383IBPFBRG4 (48-tqfp (pfp), 7x7 mm 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 ADS8383IBPFBRG4.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
ADS8383IBPFBRG4 phù hợp cho 7 Áp dụngs: Industrial Process Control and Data Acquisition, Medical Instrumentation Front-End, Portable Test and Measurement Equipment, Vibration and Acoustic Analysis Systems, Precision Weigh Scales and Load Cell Readout, Optical and Imaging Sensor Digitization, Communication and Network Test Equipment.
Industrial Process Control and Data Acquisition
The ADS8383IBPFBRG4's 18-bit no-missing-code resolution and 500 kSPS throughput make it ideal for high-precision industrial data-acquisition front-ends and closed-loop process controllers. Its zero-latency SAR architecture ensures conversions are deterministic without pipeline delay, critical for synchronizing to control loops and capturing transient events. The unipolar 0 V to VREF input (with external reference up to 4.096 V) accepts 4-20 mA current-loop voltage dropouts or sensor-bridge outputs after scaling, while the parallel 18-/16-/8-bit bus simplifies interfacing with industrial microcontrollers. Compared with sigma-delta ADCs, the SAR's 1.52 us conversion time minimizes settling error at multiplexed inputs. Industrial-grade -40C to +85C operation tolerates factory-floor temperatures without derating.
Được đề xuất
Medical Instrumentation Front-End
The 18-bit dynamic range and zero-latency SAR conversion of the ADS8383IBPFBRG4 suit high-precision diagnostic medical instruments such as patient monitors, infusion-pump feedback loops, and analytical chemistry equipment. The 500 kSPS throughput captures physiological waveforms (ECG, EMG, pulse oximetry) and chemistry sensors with 18-bit precision across the -40C to +85C biomedical-industrial range. Internal 5V-to-3.3V I/O level shifting enables direct connection to 3.3V microcontrollers and DSPs common in portable medical devices. Compared with low-speed sigma-delta ADCs, the SAR topology provides zero latency essential for closed-loop safety systems, where stale data could compromise patient safety.
Được đề xuất
Portable Test and Measurement Equipment
Portable digital multimeters, oscilloscope plug-in modules, and precision bench instruments benefit from the ADS8383IBPFBRG4's combination of 18-bit resolution, 500 kSPS throughput and wide input range. The SAR architecture's zero latency delivers measurements within one conversion cycle (1.52 us), providing the deterministic timing required for synchronized acquisition. The single +5V analog supply simplifies multi-channel design for handheld instruments that run on battery. The 48-TQFP package is small enough (49 mm^2) for compact handheld form factors, while the exposed-pad thermal dissipation path avoids the need for an external heatsink at ~110 mW power dissipation typical.
Được đề xuất
Vibration and Acoustic Analysis Systems
Industrial vibration-monitoring systems, audio analyzers, and condition-monitoring instrumentation benefit from the ADS8383IBPFBRG4's 500 kSPS capture rate and 18-bit dynamic range. The parallel output bus supports DMA-burst transfer to a DSP or FPGA for real-time FFT processing. Industrial-grade operation to +85C handles gearbox, motor housing, and process-equipment deployment. Zero-latency conversion preserves phase information required for vibration signature analysis, while the unipolar 0-VREF input accepts transducer signals (ICP accelerometers, microphones) after AC-coupled amplification and scaling.
Được đề xuất
Precision Weigh Scales and Load Cell Readout
Precision load-cell readout modules and industrial weighing systems leverage the ADS8383IBPFBRG4's 18-bit no-missing-code resolution to digitize strain-gauge bridge outputs down to microvolt levels. The unipolar input accepts 0 V to VREF (up to 4.096 V) signals directly from bridge-conditioned instrumentation amplifiers, supporting 100,000+ count resolution weighing platforms. The 48-TQFP enables compact PCB layouts in metrology-grade bench scales. SAR's zero-latency conversion avoids pipeline-delay bias in ratiometric weigh-measurement applications, while industrial temperature tolerance ensures calibration stability across -40C to +85C operation.
Được đề xuất
Optical and Imaging Sensor Digitization
Precision optical encoders, spectroscopy sensor front-ends, and industrial line-scan imaging modules rely on the ADS8383IBPFBRG4's 500 kSPS rate to digitize photodiode amplifier outputs at 18-bit resolution. The parallel output bus directly drives FPGA pipelined pixel preprocessing buffers for real-time imaging. The 5V analog rail supports photodiode transimpedance amplifier designs operating from a low-noise +12/+5V supply. Industrial-grade temperature range accommodates factory-floor and outdoor instrumentation. Compared with sigma-delta ADCs, the SAR's zero-latency architecture preserves timing accuracy in scanning spectrometers, ensuring sharp alignment of pixel and ADC sample windows.
Được đề xuất
Communication and Network Test Equipment
RF network analyzers, spectrum analyzer IF digitizers, and optical-line test gear benefit from the ADS8383IBPFBRG4's low-latency SAR conversion when sampling intermediate-frequency signals of up to ~200 kHz bandwidth. Zero pipeline delay simplifies trigger gating between DUT stimulus and capture, essential for accurate S-parameter measurements. Industrial temperature tolerance allows deployment in production ATE racks and field testers. The parallel output directly feeds DSPs and FPGAs used in coherent demodulation. Compared with sigma-delta ADCs, the SAR provides more deterministic triggering and lower group delay across the entire input bandwidth.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADS8383IBPFBRG4 — 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 | ADS8383IBPFBR | ADS8383IBPFBTG4 | ADS8383IBPFBT | ADS8381IBPFBR |
|---|---|---|---|---|---|
| Package | 48-TQFP (PFP), 7x7 mm | 48-TQFP (PFP) - same | 48-TQFP (PFP) - same | 48-TQFP (PFP) - same | 48-TQFP (PFP) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 18-bit | 18-bit | 18-bit | 18-bit | 12-bit |
| Sample Rate | 500 kSPS | 500 kSPS | 500 kSPS | 500 kSPS | 500 kSPS |
| Architecture | SAR | SAR | SAR | SAR | SAR |
| Interface | Parallel 18/16/8-bit | Parallel 18/16/8-bit | Parallel 18/16/8-bit | Parallel 18/16/8-bit | Parallel 12-bit |
| Input Range | Unipolar 0 to VREF | Unipolar 0 to VREF | Unipolar 0 to VREF | Unipolar 0 to VREF | Unipolar 0 to VREF |
| Latency | Zero (SAR) | Zero | Zero | Zero | Zero |
Bảo phân biệt quan trọng
- Genuine 18-bit no-missing-code at 500 kSPS (vsADS8381IBPFBR)
- Versatile 18-/16-/8-bit parallel bus (vsADS8382IRHPR)
- Zero pipeline latency SAR architecture (vsSigma-delta ADCs (e.g. ADS131A04))
Ghi chú thiết kế
Decouple the +5V AVCC with 10 uF tantalum or ceramic + 0.1 uF ceramic placed as close to pin 1 of the 48-TQFP as possible. Separate analog and digital grounds with a single star connection directly under the exposed pad or near the device's GND pin. The reference input (REF) requires a low-impedance buffer (e.g. OPA350) to drive multiple pins; bypass REF with 10 uF + 0.1 uF to ground.
Do not drive the parallel DB[17:0] bus at >1 MHz with capacitive loads exceeding 25 pF without external bus buffers - the part's output drivers are designed for moderate fan-out. When operating in 8-bit bus mode (BYTE=HIGH), ensure the host reads DB[7:0] for three CS-burst cycles within 1 conversion period or data loss will occur.
Keep analog input traces short and symmetric. The 48-TQFP package places IN on the left side and GND on the right side; route signal-in traces on the top layer with continuous ground plane under them. Use guard rings around the analog input path to isolate it from the parallel digital switching bus (DB15:0). For best THD, keep analog ground impedance below 0.1 ohm.
Thông tin tuân thủ
RoHS compliant (RG4 suffix indicates Pb-free reel per TI ordering nomenclature). Operating range is industrial -40C to +85C; not AEC-Q100 qualified - choose Q1 suffix variants for automotive.
