AD7192BRUZ - 24-Bit Low-Noise Sigma-Delta ADC | Analog Devices
부품 번호: AD7192BRUZ ✗ 단종| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
AD7192BRUZ 개요
A sigma-delta ADC is a data-converter category that uses a modulator and digital filtering to provide high resolution and excellent low-frequency noise performance. The AD7192 belongs to the broader ADC family and integrates a low-noise gain stage, reference input, analog input channels, and digital interface into one measurement front end. This integration reduces external analog circuitry while preserving flexibility for precision instrumentation.
The AD7192 datasheet specifies 11 nV RMS input noise at a 4.7 Hz output rate with gain 128, 15.5 noise-free bits at 2.4 kHz with gain 128, and up to 22 noise-free bits at gain 1. Offset drift is specified as 5 nV/°C, while gain drift is 1 ppm/°C. The device also supports internal or external clocking and simultaneous 50 Hz/60 Hz rejection.
The AD7192BRUZ is intended for applications requiring high-resolution measurement rather than high-speed waveform capture. Its selectable gains and input arrangement support strain gauges, pressure sensors, temperature sensors, weigh systems, laboratory instruments, and industrial process monitoring. The digital interface supports programmed conversion sequencing and acquisition control, while the sigma-delta architecture emphasizes noise reduction at low output rates.
Designs should provide stable reference and excitation circuitry, suitable input filtering, and decoupling close to the device pins. The low-noise input stage makes PCB layout, grounding, shielding, and protection-network design important: excessive leakage, ground currents, or poorly filtered references can degrade the measurement more than the nominal converter resolution suggests. The manufacturer datasheet is the authoritative source for electrical limits, pin functions, calibration procedures, and application recommendations.
This page combines the verified manufacturer and distributor references with practical ADC selection context, comparison information, and design guidance. It also distinguishes verified data from parameters that require confirmation from the complete manufacturer datasheet.
드롭인 대체품: AD7192BRUZ — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: AD7192BRUZ (동일 폼 팩터 및 풋프린트) — 차이점: Package, Analog Supply Voltage, Data Interface, RMS Noise, RoHS Status.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
AD7190BRUZ
✅ 드롭인✓ 재고 있음
$7.6364 / 개
데이터시트 보기 →AD7193BRUZ
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AD7192BRUZ-REEL
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AD7192BRUZ-REEL
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AD7192
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AD7192BRUZ 최대 정격 & 전기적 특성
| ADC Resolution | 24 bit |
| Converter Architecture | Sigma-delta (Σ-Δ) |
| Input Channels | 2 differential / 4 pseudo-differential |
| Programmable Gain | 1 to 128 |
| Output Data Rate | 4.7 Hz to 4.8 kHz |
| RMS Input Noise | 11 nV at 4.7 Hz, gain = 128 |
| Noise-Free Resolution | 15.5 bits at 2.4 kHz, gain = 128 |
| Maximum Noise-Free Resolution | Up to 22 bits at gain = 1 |
| Offset Drift | 5 nV/°C |
| Gain Drift | 1 ppm/°C |
| Clock Source | Internal or external |
| Line-Frequency Rejection | Simultaneous 50 Hz/60 Hz rejection |
| Analog Front End | Integrated low-noise gain stage |
| Automatic Channel Sequencer | Supported |
| 패키지 | 24-lead TSSOP |
| 실장 유형 | Surface mount |
| RoHS 상태 | Compliant per cross-reference data |
| REACH Status | Unaffected per cross-reference data |
| MSL | 1 per cross-reference data |
AD7192BRUZ 24-lead tssop 핀 구성 가이드
AD7192BRUZ(24-lead tssop 패키지)의 핀 구성입니다. 이 아날로그 부품에는 입력, 출력, 전원 공급 핀이 있습니다. 오프셋 널, 보상, 인에이블 핀 구성은 제조사 데이터시트를 참조하십시오. 신호 컨디셔닝 및 증폭기 회로에 이상적입니다.
다음에 대한 상세 핀아웃 데이터 없음: AD7192BRUZ.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
AD7192BRUZ 적합 용도: 6 애플리케이션s: Precision Bridge Sensor Measurement, Industrial Process Monitoring, Temperature and Resistance Measurement, Laboratory and Scientific Instrumentation, Weighing and Force Measurement, Low-Level Voltage Acquisition.
Precision Bridge Sensor Measurement
The AD7192BRUZ is suitable for strain gauges, load cells, pressure bridges, and other bridge-based sensors whose output is small and sensitive to excitation and reference noise. Its integrated programmable gain stage supports gains from 1 to 128, while the two differential inputs help reject common-mode voltage. The 11 nV RMS specification at 4.7 Hz with gain 128 is useful when the design prioritizes slow, high-resolution readings rather than rapid sampling. Place the bridge, input filter, reference, and ADC ground return in a carefully controlled analog section, and verify excitation drift and reference stability during calibration.
추천
Industrial Process Monitoring
AD7192BRUZ can form the measurement core of industrial process instrumentation when slow, accurate readings of thermocouple, voltage, current, or resistance signals are required. The programmable gain range allows the same converter platform to cover multiple sensor scales, while the 24-bit resolution and low input noise support systems that need more dynamic range than a conventional low-resolution ADC. Use calibration coefficients, digital filtering, and channel sequencing for multi-sensor systems. The final design must check electrical limits and calibration details in the complete Analog Devices datasheet before selecting supply and filtering components.
추천
Temperature and Resistance Measurement
The AD7192BRUZ is appropriate for precision temperature probes, RTDs, thermistors, and resistance-based sensors when the measurement rate can remain between 4.7 Hz and 4.8 kHz. Its sigma-delta front end is optimized for resolving low-level signals over a limited bandwidth, and the internal gain stage reduces the need for a separate low-noise amplifier in suitable designs. At lower rates, mains-related interference can be rejected using the supported 50 Hz and 60 Hz features. The source impedance, excitation arrangement, and input protection network must be matched to the sensor so that leakage and settling behavior do not compromise accuracy.
추천
Laboratory and Scientific Instrumentation
AD7192BRUZ suits laboratory instruments that measure small analog quantities and require repeatable resolution, gain control, and digital calibration. The 24-bit converter, programmable gain, selectable output rate, and automatic channel sequencer provide a flexible measurement front end without requiring a separate amplifier for every range. Its low-noise performance is especially valuable when the measured result changes slowly and averaging or digital filtering is acceptable. Instrument designers should define the required bandwidth, input range, reference accuracy, settling time, and calibration method before configuring the data rate and gain. Confirm pin functions and timing from the exact AD7192 datasheet.
추천
Weighing and Force Measurement
The AD7192BRUZ can be used in electronic weighing systems where load-cell signals are small and the desired result prioritizes stable, repeatable resolution over fast transient capture. Differential inputs help reject common-mode voltage, and the programmable gain can reduce the dynamic-range burden on the analog front end. The 11 nV RMS figure at 4.7 Hz and gain 128 provides a useful starting point for low-rate force measurements, but actual system noise includes mechanical vibration, excitation supply ripple, reference drift, and PCB leakage. Use mechanical filtering, shielded wiring, guarded analog routing, and calibration averaging where appropriate.
추천
Low-Level Voltage Acquisition
AD7192BRUZ is useful when a system must digitize low-level differential voltages at a controlled, relatively slow rate. The integrated low-noise gain stage can reduce external amplification requirements for suitable source impedances, while the selectable data rate lets the designer balance measurement speed against noise and rejection. The ADC should be paired with a quiet reference, short analog traces, proper grounding, and input filtering. Do not assume the 24-bit nominal resolution equals 24 useful bits in the finished system; characterize the complete signal chain with the intended gain, filter mode, clock, supply, and PCB layout.
추천
추천 제품 요약
엔지니어링 참조 데이터: AD7192BRUZ — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | AD7190BRUZ | AD7193BRUZ | AD7192BRUZ-REEL | AD7192 | AD7192BRUZ |
|---|---|---|---|---|---|---|
| Package | 24-lead TSSOP | 24-lead TSSOP family package; verify exact suffix | 24-lead TSSOP family package; verify exact suffix | 24-lead TSSOP family package | Family listing; exact package must be confirmed | 24-lead TSSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Compliance | RoHS compliant; REACH unaffected | RoHS status appears in supplied comparison data; REACH status requires verification | RoHS status appears in supplied comparison data; REACH status requires verification | Expected to follow base device; verify exact ordering code | Family-level status requires exact suffix verification | RoHS compliant; REACH unaffected |
주요 차별점
- Integrated low-noise gain stage (vs AD7190BRUZ)
- High resolution at low output rate (vs AD7193BRUZ)
- Integrated precision measurement front end (vs AD7190BRUZ)
설계 노트
Route analog inputs and the reference network away from digital clocks, SPI activity, and high-current return paths. Keep the input and reference traces short, use a continuous analog ground strategy appropriate to the system, and place filtering and protection components close to their associated pins. The AD7192BRUZ is designed for low-noise measurement, so PCB leakage and ground contamination can be more important than the converter’s nominal resolution. Validate layout changes with a noise and line-rejection test on the finished board.
Use the internal or external clock according to the system timing and filtering requirements, and follow the manufacturer’s recommended digital interface layout. Clock jitter, data-line coupling, and digital return current can affect conversion results even when the analog front end is well isolated. Keep the SPI or control traces away from high-impedance input and reference nodes, and provide a quiet return path beneath or beside digital interfaces. Confirm interface voltage levels and timing from the complete AD7192 datasheet.
Do not treat 24-bit resolution as guaranteed usable resolution without considering gain, data rate, filter mode, reference accuracy, source impedance, and PCB noise. The verified specifications of 11 nV RMS at 4.7 Hz with gain 128 and 15.5 noise-free bits at 2.4 kHz with gain 128 are conditional measurements. Select the data rate and gain for the actual bandwidth, allow sufficient settling time, and calibrate offset and gain against the complete measurement chain.
규정 준수 정보
The supplied cross-reference data identifies AD7192BRUZ as RoHS compliant, REACH unaffected, and MSL 1. The supplied data does not establish lead-free status, halogen-free status, conflict-minerals status, or AEC-Q100 qualification.
