ADS8380IBRHPRG4 - 18-Bit 600kSPS Serial ADC | Texas Instruments
부품 번호: ADS8380IBRHPRG4 ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $18.75 | $18.75 |
| 10 | $16.85 | $168.50 |
| 100 | $14.2 | $1,420.00 |
| 500 | $11.95 | $5,975.00 |
| 1,000 | $10.4 | $10,400.00 |
ADS8380IBRHPRG4 개요
What is a SAR ADC? A successive-approximation-register analog-to-digital converter is a class of data converter that uses a binary search algorithm and a capacitive DAC to digitize an analog input one bit at a time per conversion clock. SAR ADCs offer an excellent balance of resolution, speed, and power consumption versus pipelined or delta-sigma converters, and they require no pipeline latency. In the system hierarchy, a SAR ADC sits between the analog signal-conditioning front end and the digital signal processor or microcontroller in a precision data-acquisition chain.
Key features of the ADS8380IBRHPRG4 include a 600 kHz maximum sample rate, an integrated low-drift reference, a CMOS-compatible serial interface capable of up to 40 MHz clock speeds, an operating temperature range of -40C to +85C (industrial grade), and low power consumption typical of micropower SAR architectures. The integrated reference eliminates an external precision reference component, simplifying BOM and reducing PCB area. The pseudo-differential input structure rejects common-mode noise on the input signal when paired with proper driver circuitry.
The ADS8380IBRHPRG4 uses a charge-redistribution capacitive DAC architecture with inherent sample-and-hold functionality, providing a true 18-bit resolution at full speed without throughput-dependent latency. The device is characterized for 18-bit no-missing-codes performance across the industrial temperature range, supporting robust operation in factory-floor and instrumentation environments.
Typical applications include industrial process-control data acquisition, precision instrumentation and weigh scales, medical patient-monitoring front ends, optical module monitoring, and high-speed multiplexed data-acquisition systems. The integrated reference and small VQFN package also make it attractive for space-constrained designs such as portable test equipment.
When designing with this part, ensure the input driver amplifier can settle the ADC's input within the acquisition window, and provide adequate bypass capacitance on AVDD/DVDD rails to achieve the rated SNR. The serial interface timing budget must support the full 40 MHz SCLK without violating the device's t_acq specification.
This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes not found in the manufacturer datasheet alone.
드롭인 대체품: ADS8380IBRHPRG4 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ADS8380IBRHPRG4 (동일 폼 팩터 및 풋프린트) — 차이점: Architecture, Data Interface, Input Configuration, Number of Channels, Resolution.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
ADS8380IBRHPR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ADS8380IRHPRG4
✅ 드롭인✓ 재고 있음
가격 문의
데이터시트 보기 →ADS8380IRHPR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ADS8380IBRHPTG4
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ADS8332IBRGER
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ADS8380IBRHPRG4 최대 정격 & 전기적 특성
| 분해능 | 18 bits |
| Number of Channels | 1 Input, 1 SAR |
| 샘플링 속도 | 600 kSPS (max) |
| Input Configuration | Pseudo-Differential (unipolar) |
| Data Interface | Serial, SPI-compatible |
| Max SCLK Frequency | 40 MHz |
| Integrated Reference | Yes (internal) |
| Architecture | SAR with inherent sample-and-hold |
| Integral Nonlinearity (INL) | ±2 LSB (typical) |
| 패키지 | 28-VQFN (RHP), 6x6 mm, with exposed thermal pad |
| 동작 온도 범위 | -40 C to +85 C |
| Temperature Grade | Industrial |
| 실장 유형 | Surface Mount |
| Packaging | Tape & Reel (TR) |
| RoHS 상태 | Compliant |
ADS8380IBRHPRG4 핀 구성
| 핀 1 | AVDD — Analog supply voltage |
| 핀 2 | AGND — Analog ground |
| 핀 3 | REF — Reference voltage input/output (internal ref) |
| 핀 4 | IN+ — Positive analog input |
| 핀 5 | IN- — Negative analog input (pseudo-diff return) |
| 핀 6 | AGND — Analog ground |
| 핀 7 | AVDD — Analog supply voltage |
| 핀 8 | NC — Not connected (per datasheet) |
| 핀 9 | NC — Not connected (per datasheet) |
| 핀 10 | DVDD — Digital supply voltage |
| 핀 11 | DGND — Digital ground |
| 핀 12 | CS — Chip select (active low) |
| 핀 13 | SCLK — Serial clock input |
| 핀 14 | DOUT — Serial data output |
| 핀 15 | BUSY — ADC busy indicator (output) |
| 핀 16 | DGND — Digital ground |
| 핀 17 | DVDD — Digital supply voltage |
| 핀 18 | CONVST — Conversion start input |
| 핀 19 | RESET — Reset input (active low) |
| 핀 20 | NC — Not connected (per datasheet) |
| 핀 21 | NC — Not connected (per datasheet) |
| 핀 22 | NC — Not connected (per datasheet) |
| 핀 23 | NC — Not connected (per datasheet) |
| 핀 24 | NC — Not connected (per datasheet) |
| 핀 25 | NC — Not connected (per datasheet) |
| 핀 26 | NC — Not connected (per datasheet) |
| 핀 27 | NC — Not connected (per datasheet) |
| 핀 28 | AGND — Analog ground (or thermal pad connection point) |
일반적인 애플리케이션
ADS8380IBRHPRG4 적합 용도: 6 애플리케이션s: Industrial Process Control Data Acquisition, Precision Weigh Scale and Load Cell Measurement, Medical Patient Monitoring Front End, Optical Module Power Monitoring, Portable Test and Measurement Instrumentation, High-Speed Multiplexed Data Acquisition Systems.
Industrial Process Control Data Acquisition
The ADS8380IBRHPRG4 is an excellent fit for industrial process-control data-acquisition modules reading 4-20 mA or 0-10 V transducer signals through an instrumentation front end. Its 18-bit resolution preserves small signal swings, the 600 kSPS throughput handles multiplexed input scans, and the integrated reference removes the need for an external reference IC - saving BOM cost and PCB area in DIN-rail mounted PLC analog input cards. The pseudo-differential input structure rejects common-mode ground-shift noise common in factory-floor installations.
추천
Precision Weigh Scale and Load Cell Measurement
For precision weigh scales and load-cell signal chains, the ADS8380IBRHPRG4 delivers 18-bit no-missing-codes resolution and ±2 LSB typical INL, providing the dynamic range required to digitize millivolt-level bridge outputs after low-noise signal conditioning. The integrated low-drift reference ensures stable gain calibration across the industrial -40C to +85C operating range, while the 600 kSPS throughput supports simultaneous load-cell and tare-weight scanning in commercial scales. The 28-VQFN package is small enough to fit inside compact bench-top scale enclosures.
추천
Medical Patient Monitoring Front End
The ADS8380IBRHPRG4 is well-suited for medical patient-monitoring front ends digitizing ECG, SpO2, and temperature sensor signals in bedside monitors. Its 18-bit resolution captures the small signal amplitudes typical of biopotential measurements after analog filtering and gain stages, while the integrated reference maintains accuracy across the industrial temperature range required for medical equipment housings. The CMOS serial interface simplifies isolation barrier implementation - critical for patient-connected equipment meeting IEC 60601 safety standards.
추천
Optical Module Power Monitoring
For optical transceiver modules and EDFA pump-laser monitoring, the ADS8380IBRHPRG4 digitizes photodiode current-to-voltage converted signals with 18-bit resolution at 600 kSPS, enabling real-time laser-bias stabilization loops. The integrated reference eliminates thermal drift in the ADC reference, which is critical for optical-power calibration accuracy. The 28-VQFN footprint fits inside SFP+ and QSFP28 module form factors, and the industrial temperature range covers the harsh thermal environment of optical line-card chassis.
추천
Portable Test and Measurement Instrumentation
Handheld and bench-top test and measurement equipment benefits from the ADS8380IBRHPRG4's combination of 18-bit resolution, 600 kSPS throughput, and small 28-VQFN package. The integrated reference and pseudo-differential input simplify the analog front end, while the serial interface reduces microcontroller pin count. Designers can use this ADC in oscilloscope front-end digitizing blocks, spectrum-analyzer IF digitizers, and bench-DMM signal chains where PCB real estate is at a premium and precision matters.
추천
High-Speed Multiplexed Data Acquisition Systems
In multi-channel multiplexed data-acquisition systems with external input MUX switches, the ADS8380IBRHPRG4's 600 kSPS throughput enables rapid sequential channel scanning while the 18-bit resolution preserves accuracy on each channel conversion. The pseudo-differential input structure simplifies the external MUX and driver design, and the integrated reference eliminates per-channel calibration drift. The serial output reduces board routing complexity compared to parallel-output ADCs in high-channel-count systems.
추천
추천 제품 요약
엔지니어링 참조 데이터: ADS8380IBRHPRG4 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ADS8380IBRHPR | ADS8380IRHPRG4 | ADS8380IRHPR | ADS8380IBRHPTG4 |
|---|---|---|---|---|---|
| Package | 28-VQFN (RHP), 6x6 mm | 28-VQFN (RHP), 6x6 mm - same | 28-VQFN (RHP), 6x6 mm - same | 28-VQFN (RHP), 6x6 mm - same | 28-VQFN (RHP), 6x6 mm - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 18-bit | 18-bit | 18-bit | 18-bit | 18-bit |
| Sample Rate | 600 kSPS | 600 kSPS | 600 kSPS | 600 kSPS | 600 kSPS |
| Input Channels | 1 pseudo-differential | 1 pseudo-differential | 1 pseudo-differential | 1 pseudo-differential | 1 pseudo-differential |
| Integrated Reference | Yes | Yes | Yes | Yes | Yes |
| Data Interface | Serial/SPI | Serial/SPI | Serial/SPI | Serial/SPI | Serial/SPI |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| RoHS Compliant | Yes (G4 suffix) | No (non-G4 reel code) | Yes (G4 suffix) | No (non-G4 reel code) | Yes (TG4 suffix) |
| Lifecycle Status | Active | Active | Active | Active | Active |
주요 차별점
- Integrated precision voltage reference eliminates external reference IC (vs ADS8332IBRGER)
- Higher resolution 18-bit vs 16-bit (vs ADS8332IBRGER)
- Higher maximum sample rate (vs ADS8363SRHBR)
설계 노트
Solder the 28-VQFN exposed thermal pad directly to a clean ground plane using multiple thermal vias for heat spreading and ground reference integrity. Place the AVDD decoupling capacitors (10 uF tantalum + 0.1 uF ceramic) as close as possible to the AVDD pin with the ground return via short and direct to the exposed pad. Separate AVDD and DVDD analog/digital ground planes should join at a single-point star under the IC to prevent digital switching noise coupling into the analog reference.
Drive the IN+ analog input with a low-impedance, fast-settling op-amp buffer (such as OPA2277 or THS4631) capable of settling within the ADC's acquisition window (t_acq). The pseudo-differential IN- input must be driven by a low-impedance source tied to the signal common-mode point; leaving IN- floating degrades linearity. Keep analog input traces short, guarded, and far from digital switching signals like SCLK, CS, and DOUT.
Do not violate the maximum SCLK frequency of 40 MHz - faster clocks will corrupt serial data timing. Ensure CONVST pulse width meets the datasheet minimum (typically 20 ns) before the BUSY signal goes low; initiating a new conversion before BUSY clears can stall the converter. Always issue a power-on reset via the RESET pin after supply rails stabilize, and allow the integrated reference to settle before initiating the first conversion. Avoid bringing noisy digital signals through the analog ground plane.
규정 준수 정보
G4 suffix in Texas Instruments ordering nomenclature designates Pb-free, RoHS-compliant tape-and-reel packaging. REACH compliance per TI product page. AEC-Q100 not applicable - this part is not automotive-qualified.
