AD7606BBCHIPS - 16-Bit 8-Ch 800kSPS DAS ADC | Analog Devices
MPN： AD7606BBCHIPS ✓ 啟用中AD7606BBCHIPS 概覽
A data acquisition system (DAS) is a signal-chain subsystem that converts real-world analog signals into digital data for processing. Within the ADC hierarchy, the AD7606BBCHIPS sits in the simultaneous-sampling SAR ADC family, which is preferred over multiplexed architectures when multiple channels must be sampled at exactly the same instant, such as in three-phase power measurement.
Key features include true bipolar input operation from a single supply, an on-chip antialiasing filter with digitally programmable bandwidth, and a 5 MΩ analog input impedance. The high input impedance results in less than 20 LSB bipolar zero code error when an input is disconnected and pulled to ground through a 10 kΩ external resistor, eliminating the need for external bipolar-supply driver op amps.
Architecturally, the AD7606BBCHIPS uses per-channel signal chains with integrated clamp protection, allowing direct connection to sensors and transformers while tolerating overvoltage faults. According to the ADI application note AN-1559, the AD7606B generation is a drop-in upgrade from the original AD7606 with higher input impedance, faster throughput, and extended temperature range.
Typical applications include power line monitoring and protective relays, three-phase motor and inverter control, industrial automation DAQ modules, and medical instrumentation. The 800 kSPS simultaneous sampling across all eight channels makes it well suited to power quality analyzers and grid monitoring equipment.
A key design consideration is that higher on-chip input impedance allows reduced-power signal sourcing, but the digital interface (parallel or serial SPI) must respect throughput timing when running at full 800 kSPS across all channels. Supply sequencing of the analog and digital rails should follow the datasheet power-up order.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, verified as of 2026-09-14.
直接替換替代品，適用於 AD7606BBCHIPS — 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： AD7606BBCHIPS （相同外形與佔位） — 差異在於 Input Type, Number of Channels, Architecture, MSL Level, Operating Temperature Range.
AD7606BSTZ
✅ 直接替換 ⚠️ 規格未經驗證✗ 缺貨
$16.9 / 單位
查看資料表 →AD7606BISTZ
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
AD7606C-16BSTZ
✅ 直接替換 ⚠️ 規格未經驗證✓ 有庫存
$49.2188 / 單位
查看資料表 →AD7606BBCHIPS 最大額定值與電氣特性
| 解析度 | 16 bit |
| Number of Channels | 8 (simultaneous sampling) |
| Throughput Rate | 800 kSPS |
| Architecture | SAR ADC with per-channel PGA and filter |
| Input Type | Bipolar, differential/single-ended |
| Analog Input Impedance | 5 MOhm |
| Bipolar Zero Code (input grounded via 10 kOhm) | Less than 20 LSB |
| On-Chip Features | Input clamp protection, PGA, low-pass filter |
| Supply | Single supply |
| 介面 | Parallel or high-speed serial (SPI) |
| 安裝類型 | Surface Mount |
AD7606BBCHIPS standard 腳位配置指南
AD7606BBCHIPS（standard 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： AD7606BBCHIPS.
請參閱 資料表 以查看完整腳位配置。
典型應用
AD7606BBCHIPS 適用於 6 應用s: Power Line Monitoring, Protective Relays, Motor Control and Inverter Drives, Industrial Data Acquisition Modules, Medical Instrumentation, Test and Measurement Equipment.
Power Line Monitoring
The AD7606BBCHIPS fits power line monitoring because its eight simultaneous-sampling channels capture multiple phase voltages and currents with zero channel-to-channel skew, which is mandatory for correct active, reactive, and apparent power computation. The 800 kSPS per-channel rate supports harmonic analysis well beyond the 50th harmonic per IEC-class power quality requirements, and the 5 MOhm input impedance connects directly to transformer secondaries without loading the measurement. The integrated clamp protection tolerates switching transients on utility lines. Placed between the isolation front end and the DSP, it delivers digitized waveforms over SPI, with the on-chip antialiasing filter relaxing analog filter design at the front end.
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Protective Relays
Protective relays demand simultaneous sampling of three-phase voltage and current channels with deterministic timing, which the AD7606BBCHIPS provides through its eight per-channel SAR converters at up to 800 kSPS. The analog input clamp protection is a decisive advantage here, since relay front ends routinely face fault-induced transients and overvoltage conditions on CT and PT inputs. The bipolar input range on a single supply simplifies the isolated analog front end, and the on-chip PGA allows range scaling for both metering-grade accuracy and fault-recording dynamic range. According to the ADI datasheet, high input impedance yields under 20 LSB zero code with inputs grounded through 10 kOhm, keeping quiescent channel offsets low.
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Motor Control and Inverter Drives
In three-phase inverter and motor drive systems, the AD7606BBCHIPS digitizes DC bus voltage, three phase currents, and temperature feedbacks simultaneously, enabling field-oriented control algorithms that require aligned current samples. The 800 kSPS throughput per channel supports high PWM carrier frequencies, allowing overcurrent detection within a single switching period. Bipolar inputs accept bidirectional phase current signals from shunts or sensors directly on a single supply, and the integrated low-pass filter attenuates switching ripple ahead of conversion. The input clamp protection guards against dV/dt-induced transients common in power stages, improving robustness in electrically noisy drive environments.
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Industrial Data Acquisition Modules
Industrial DAQ modules benefit from the AD7606BBCHIPS integration: eight channels of clamp protection, PGA, filtering, and 16-bit SAR conversion in one device replace a discrete multiplexed front end, cutting board area and calibration effort. The 5 MOhm input impedance allows high-impedance sensors and voltage dividers to be connected without buffer amplifiers, and the single-supply bipolar input range removes the need for dual-rail analog supplies typical of older DAQ front ends. All channels convert simultaneously, so multi-sensor time correlation is preserved for vibration, pressure, and electrical measurements. Throughput of 800 kSPS per channel covers dynamic testing as well as slow process variables.
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Medical Instrumentation
Medical diagnostic equipment, including patient monitoring and physiological signal acquisition, uses the AD7606BBCHIPS to digitize multiple biopotential and pressure channels simultaneously at 16-bit resolution. The integrated antialiasing filter and PGA reduce external component count in front ends where board space and cleanliness matter, and single-supply operation simplifies isolation scheme design between the patient-connected side and system electronics. The high 5 MOhm input impedance minimizes loading of high-impedance electrode interfaces, protecting signal fidelity, while clamp protection adds a layer of robustness against defibrillation and electrostatic transient events in clinical environments.
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Test and Measurement Equipment
Bench and portable instruments, including multichannel oscilloscope front ends and automated test systems, leverage the AD7606BBCHIPS 800 kSPS simultaneous sampling and 16-bit resolution for accurate waveform capture across eight channels. The on-chip digital filter with programmable bandwidth lets instruments adapt noise filtering to the measurement band without changing hardware. Bipolar inputs accept AC-coupled and DC-coupled signals directly, and input clamp protection improves survivability against user-connected overrange signals, a common field failure in test gear. The parallel/serial interface flexibly mates with FPGA or MCU-based acquisition engines at full throughput.
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推薦產品摘要
工程參考資料，適用於 AD7606BBCHIPS — 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 | AD7606BSTZ | AD7606BISTZ | AD7606C-16BSTZ |
|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 16 bit | 16 bit | 16 bit | 16/18-bit family |
| Channels | 8 (simultaneous) | 8 (simultaneous) | 8 (simultaneous) | 8 (simultaneous) |
| Throughput | 800 kSPS | 200 kSPS | 800 kSPS | 800 kSPS |
| Input Impedance | 5 MOhm | 1 MOhm | 5 MOhm | 5 MOhm |
| Generation | AD7606B (enhanced) | AD7606 (original) | AD7606B (enhanced) | AD7606C (highest accuracy) |
| Input Clamp Protection | Yes, per channel | Yes, per channel | Yes, per channel | Yes, per channel |
主要差異化特點
- 5 MOhm input impedance eliminates external driver amplifiers (對比AD7606BSTZ)
- 4x faster throughput in the same footprint (對比AD7606BSTZ)
- Lower cost than highest-accuracy family member (對比AD7606C-16BSTZ)
設計說明
Do not treat the AD7606BBCHIPS as identical to the original AD7606BSTZ. According to ADI application note AN-1559, the AD7606B generation is a drop-in upgrade with hardware-mode differences that must be reviewed during migration, including register and configuration differences. The input impedance also differs (5 MOhm vs 1 MOhm), which changes divider loading behavior in existing front ends. Always re-verify the software configuration and input network when substituting between generations.
The 5 MOhm input impedance allows direct connection to high-impedance sources, but PCB leakage currents can still corrupt low-level signals. Guard the analog input traces, use clean flux removal under the ADC, and keep input traces short and shielded with ground pour. The datasheet notes that with inputs pulled to ground through only a 10 kOhm resistor, zero code error stays below 20 LSB - degraded layout hygiene can easily exceed this figure in production boards.
Decouple the analog supply and reference with low-ESR ceramic capacitors placed as close to the pins as possible, and follow the datasheet power-up sequencing between the analog and digital supply rails. Because the part integrates the PGA and antialiasing filter, reference noise directly affects all eight channels' SNR; a precision low-noise reference with adequate decoupling preserves the 16-bit performance at the full 800 kSPS throughput.
合規資訊
Compliance data was not present in the provided verified web data; consult the ADI product page and environmental documentation before specification.