AD976BNZ - 16-Bit 100 kSPS SAR ADC | Analog Devices
MPN： AD976BNZ ✓ 啟用中AD976BNZ 概覽
An ADC is an interface IC that converts an analog voltage into a digital code for processing, storage, transmission, or control. The AD976 belongs to the successive-approximation ADC family, which repeatedly compares the input against a generated reference to resolve a digital result. This architecture sits within the broader ADC and data-converter hierarchy and is commonly used where moderate speed, resolution, and parallel data output are practical.
Key features include 16-bit resolution, 100 kSPS throughput, one analog input, and a 5 V single-supply operating range. The manufacturer describes the converter as a high-speed, low-power switched-capacitor ADC. Parallel output reduces the need for a serial interface, while the 28-pin DIP package supports conventional through-hole assembly and prototyping. The industrial temperature grade makes the part relevant to industrial instrumentation, although a numerical temperature range is not present in the supplied data.
The AD976 uses a successive-approximation, switched-capacitor architecture. Its parallel interface can connect directly to suitable digital acquisition hardware or an embedded system with appropriate voltage levels and timing. The manufacturer datasheet also describes 200 ohm and 33.2 kilohm external resistors used to compensate the internal offset and gain adjustment, allowing calibration with a single supply. These details distinguish calibration behavior from the ADC's core conversion specifications.
Typical uses include industrial process-control instrumentation, laboratory data acquisition, digital panel meters, waveform measurement, and embedded control systems. The 16-bit resolution supports fine-grained representation of a measured voltage, while the 100 kSPS rate is appropriate for slow-changing or bandwidth-limited analog signals. It is not positioned as a high-frequency waveform converter compared with devices operating at hundreds of kilomegasamples per second or faster.
Designers should preserve the specified 4.75 V to 5.25 V supply range, provide suitable reference and decoupling arrangements, and verify that the parallel interface timing is compatible with the receiving logic. Because only verified package, resolution, throughput, supply, architecture, and related-family information was available here, input range, SNR, INL, DNL, clock requirements, and absolute maximum ratings should be confirmed in the manufacturer datasheet before release to production.
This page consolidates verified AD976 family specifications, current distributor sourcing, package details, and practical replacement guidance. It also separates confirmed AD976BNZ attributes from parameters that still require direct verification, helping engineers compare procurement choices without presenting unsupported electrical values as established facts.
直接替換替代品，適用於 AD976BNZ — 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： AD976BNZ （相同外形與佔位） — 差異在於 Architecture, Resolution, Input Range, Package, Power Dissipation.
AD976BR
✅ 直接替換聯絡詢價
查看資料表 →AD976BN
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →AD976BJZ
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
AD976BNZ 最大額定值與電氣特性
| Converter Type | Successive-approximation ADC |
| 解析度 | 16 bit |
| Throughput Rate | 100 kSPS |
| Number of Inputs | 1 input |
| Architecture | Switched-capacitor |
| Supply Voltage Range | 4.75 V to 5.25 V |
| Nominal Supply Voltage | 5 V |
| Number of Supply Rails | 1 |
| Output Interface | Parallel I/O |
| 封裝 | 28-pin rectangular DIP |
| 安裝類型 | Through-hole |
| Number of Terminals | 28 |
| Temperature Grade | Industrial |
| Offset and Gain Compensation Resistor | 200 ohm |
| Offset and Gain Compensation Resistor | 33.2 kilohm |
AD976BNZ 28-pin rectangular dip 腳位配置指南
AD976BNZ（28-pin rectangular dip 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： AD976BNZ.
請參閱 資料表 以查看完整腳位配置。
典型應用
AD976BNZ 適用於 6 應用s: Industrial Process Measurement, Laboratory Data Acquisition, Digital Panel Meter, Embedded Control System, Waveform and Sensor Monitoring, Digital Control and Feedback.
Industrial Process Measurement
The AD976BNZ fits industrial process-measurement systems that monitor slowly varying pressure, temperature, level, or flow signals with 16-bit resolution. Its verified 100 kSPS throughput provides ample conversion capacity for many sensor-conditioning channels, while the single 4.75 V to 5.25 V supply simplifies isolated analog front-end power planning. The parallel output can feed an embedded controller or dedicated acquisition logic. The manufacturer datasheet’s 200 ohm and 33.2 kilohm offset-and-gain compensation network should be implemented and calibrated according to the original reference circuit.
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Laboratory Data Acquisition
The AD976BNZ is appropriate for laboratory and bench data-acquisition systems requiring accurate numeric measurement rather than very high waveform bandwidth. A 16-bit resolution supports fine quantization, and the 100 kSPS conversion rate supports continuous acquisition of many bandwidth-limited sensor outputs. Its 28-pin through-hole DIP package is convenient for prototyping and systems that use sockets. The parallel interface requires adequate settling time and compatible logic levels, while the official Analog Devices circuit should guide reference, bypass-capacitor, and calibration-component placement.
推薦
Digital Panel Meter
The AD976BNZ can form the measurement front end of a digital panel meter or industrial display that converts a conditioned analog voltage into a stable numeric result. Its 16-bit resolution is useful when representing a narrow measurement range with fine resolution, and the 100 kSPS rate allows rapid updates without demanding high-speed memory performance. A microcontroller or display controller can latch the parallel output and perform averaging, calibration, and formatting. Designers should select external reference and compensation components using the manufacturer datasheet rather than extrapolating values not specified in the supplied excerpts.
推薦
Embedded Control System
The AD976BNZ is suited to embedded control systems that read external analog quantities through a sensor-to-digital conversion stage. The single 5 V supply operation aligns with a 5 V-based analog and digital architecture, while the 100 kSPS rate is well matched to supervisory measurements such as pressure, position, temperature, and supply feedback. The parallel output can be sampled by an embedded controller or programmable logic device. Because the AD976BNZ uses a 28-pin DIP package, the design should provide through-hole footprint clearance and verify logic compatibility at every interface connection.
推薦
Waveform and Sensor Monitoring
The AD976BNZ can monitor bandwidth-limited waveforms and repetitive sensor signals when the required sample rate is no greater than its verified 100 kSPS throughput. Sixteen-bit conversion provides a high numerical resolution for measurement and recording systems, while the switched-capacitor successive-approximation architecture supports a straightforward sampling path. The parallel interface allows direct digital acquisition when timing permits. Engineers should evaluate input bandwidth, acquisition time, reference stability, and noise specifications from the complete manufacturer datasheet before treating the converter as suitable for high-frequency or high-amplitude transient work.
推薦
Digital Control and Feedback
The AD976BNZ can provide closed-loop measurement data in digital power, motion, or equipment-control systems where the feedback signal changes more slowly than the converter’s 100 kSPS throughput. The 16-bit result can support precise monitoring, setpoint comparison, or adaptive control when the analog front end preserves signal integrity. Single-supply operation simplifies common 5 V control-board designs, and the parallel bus can connect to a controller capable of handling the required acquisition timing. Final selection must include checks for input range, SNR, monotonicity, and absolute maximum conditions from the manufacturer documentation.
推薦
推薦產品摘要
工程參考資料，適用於 AD976BNZ — 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 | AD976BR | AD976BN | AD976BJZ |
|---|---|---|---|---|
| Package | 28-pin rectangular DIP | 28-pin DIP | 28-pin DIP | 28-pin DIP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 16 bit | 16 bit | 16 bit | 16 bit |
| Throughput Rate | 100 kSPS | 100 kSPS | 100 kSPS | 100 kSPS |
| Supply Voltage Range | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V |
| Converter Architecture | Successive-approximation ADC | Successive-approximation ADC | Successive-approximation ADC | Successive-approximation ADC |
| Output Interface | Parallel I/O | Parallel I/O | Parallel I/O | Parallel I/O |
| Number of Analog Inputs | 1 input | 1 input | 1 input | 1 input |
| Mounting Type | Through-hole | Through-hole | Through-hole | Through-hole |
主要差異化特點
- Verified 100 kSPS operation in a 28-pin DIP package (對比AD976A)
- Direct match to the standard AD976 conversion performance (對比AD976BR)
- Single-supply operation with documented calibration support (對比AD976BN)
設計說明
Operate AD976BNZ from a single regulated supply within the verified 4.75 V to 5.25 V range. Place local bypass capacitance at the supply pins and follow the reference and decoupling arrangement shown in the official Analog Devices datasheet. The manufacturer describes external 200 ohm and 33.2 kilohm resistors for offset and gain compensation with single-supply calibration; use those values only in the documented circuit configuration and confirm resistor tolerance during calibration.
Keep the analog input, reference, compensation, and supply connections compact and isolate them from digital clock and data routing wherever possible. The AD976 uses a switched-capacitor architecture and provides parallel output, so acquisition timing and clock-edge relationships should be treated as layout constraints rather than afterthoughts. Prototype with the documented 28-pin DIP footprint, verify every signal against the manufacturer pin table, and avoid adding long parallel-bus stubs before confirming the receiver’s input capacitance and settling requirements.
Do not infer the AD976A’s 200 kSPS rate for the AD976BNZ; the verified AD976BNZ rating is 100 kSPS. Also do not assume that every AD976 orderable suffix has the same package material or temperature range. Confirm the exact ordering code, 28-pin pinout, input range, clock requirements, absolute maximum ratings, and calibration circuit in the current manufacturer datasheet. The supplied excerpts do not verify those missing electrical limits.
合規資訊
The supplied manufacturer and distributor excerpts identify an industrial-grade AD976BNZ but do not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-mineral status.
