AD7609BSTZ - 18-Bit 8-Ch Simultaneous Sampling ADC | Analog Devices
MPN: AD7609BSTZ ✓ פעילAD7609BSTZ סקירה
A data acquisition system (DAS) is a complete signal chain that conditions, samples, and converts analog signals into digital data. The AD7609BSTZ belongs to the family of simultaneous sampling ADCs, which capture multiple channels at the same instant to preserve phase relationships between signals. This is critical in applications like three-phase power monitoring and multi-axis motor control, where timing skew between channels would introduce measurement errors. The DAS integrates the entire analog front end, reducing external component count and simplifying design.
Key features include 18-bit resolution with no missing codes, 200 kSPS throughput on all channels, true differential inputs with a ±5 V or ±10 V range, and a 2.5 V internal reference with buffer. The device offers both serial (SPI/DSP) and parallel interfaces, and includes a digital filter for noise reduction. The input clamp protection tolerates voltages up to ±16.5 V, enhancing robustness in industrial environments.
The AD7609BSTZ uses a charge redistribution successive approximation architecture, which provides excellent linearity and low power consumption. The integrated antialiasing filter simplifies external filtering requirements, and the track-and-hold amplifiers ensure accurate sampling of fast-changing signals. The device operates over the industrial temperature range of -40°C to +85°C and is available in a 64-lead LQFP (10x10 mm) package.
Typical applications include power line monitoring, protective relays, motor control, and industrial data acquisition systems. The simultaneous sampling capability is essential for measuring three-phase voltages and currents with accurate phase alignment. The wide input range and robust protection make it suitable for harsh industrial environments.
When designing with the AD7609BSTZ, ensure proper decoupling of the AVCC and DVCC supplies with 10 µF and 0.1 µF capacitors. The REFIN/REFOUT pin can be driven by an external reference for improved accuracy. The digital interface supports both serial and parallel modes, selectable via the PAR/SER/BYTE pin. For best performance, use a low-jitter conversion clock and minimize digital noise coupling to the analog inputs.
חלופות תחליף ישיר עבור AD7609BSTZ — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם AD7609BSTZ (אותו גורם צורה וטביעת רגל) — שונים ב Resolution, Input Type, Interface, Internal Reference, Antialiasing Filter.
AD7606BSTZ
✅ Drop-In✗ אזל מהמלאי
$16.9 / יחידה
הצג גיליון נתונים ←AD7606BSTZ-RL
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←AD7609BSTZ-RL
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
AD7606C-16BSTZ-RL
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
AD7608BSTZ
✅ Drop-In ⚠️ מפרטים לא מאומתים✗ אזל מהמלאי
$38.1818 / יחידה
הצג גיליון נתונים ←AD7609BSTZ דירוגים מרביים ומאפיינים חשמליים
| רזולוציה | 18 bits |
| Number of Channels | 8 |
| Input Type | True differential |
| טווח מתח כניסה | ±5 V or ±10 V |
| Throughput Rate | 200 kSPS |
| מתח אספקה | 5 V (single) |
| Internal Reference | 2.5 V |
| Input Clamp Protection | ±16.5 V |
| Analog Input Impedance | 1 MΩ |
| ממשק | SPI, DSP, parallel |
| מארז | 64-LQFP (10x10 mm) |
| טווח טמפרטורת פעולה | -40°C to +85°C |
| Antialiasing Filter | Second-order |
| Architecture | Charge redistribution SAR |
| RoHS | Compliant |
תצורת פינים של AD7609BSTZ
| פין 1 | AVCC — Analog supply voltage (5 V) |
| פין 2 | V1+ — Positive analog input channel 1 |
| פין 3 | V1- — Negative analog input channel 1 |
| פין 4 | V2+ — Positive analog input channel 2 |
| פין 5 | V2- — Negative analog input channel 2 |
| פין 6 | V3+ — Positive analog input channel 3 |
| פין 7 | V3- — Negative analog input channel 3 |
| פין 8 | V4+ — Positive analog input channel 4 |
| פין 9 | V4- — Negative analog input channel 4 |
| פין 10 | V5+ — Positive analog input channel 5 |
| פין 11 | V5- — Negative analog input channel 5 |
| פין 12 | V6+ — Positive analog input channel 6 |
| פין 13 | V6- — Negative analog input channel 6 |
| פין 14 | V7+ — Positive analog input channel 7 |
| פין 15 | V7- — Negative analog input channel 7 |
| פין 16 | V8+ — Positive analog input channel 8 |
| פין 17 | V8- — Negative analog input channel 8 |
| פין 18 | AGND — Analog ground |
| פין 19 | REFIN/REFOUT — Reference input/output |
| פין 20 | REFCAP — Reference buffer output |
| פין 21 | REFSELECT — Reference select (high = internal, low = external) |
| פין 22 | RANGE — Input range select (±5 V or ±10 V) |
| פין 23 | CONVST A — Conversion start for channels 1-4 |
| פין 24 | CONVST B — Conversion start for channels 5-8 |
| פין 25 | BUSY — Busy output (high during conversion) |
| פין 26 | FRSTDATA — First data output |
| פין 27 | OS0 — Oversampling ratio bit 0 |
| פין 28 | OS1 — Oversampling ratio bit 1 |
| פין 29 | OS2 — Oversampling ratio bit 2 |
| פין 30 | PAR/SER/BYTE — Parallel/serial/byte select |
| פין 31 | STBY — Standby mode input |
| פין 32 | CS — Chip select |
| פין 33 | RD/SCLK — Read/Serial clock |
| פין 34 | WR/DIN — Write/Serial data input |
| פין 35 | DB0 — Parallel data bit 0 |
| פין 36 | DB1 — Parallel data bit 1 |
| פין 37 | DB2 — Parallel data bit 2 |
| פין 38 | DB3 — Parallel data bit 3 |
| פין 39 | DB4 — Parallel data bit 4 |
| פין 40 | DB5 — Parallel data bit 5 |
| פין 41 | DB6 — Parallel data bit 6 |
| פין 42 | DB7 — Parallel data bit 7 |
| פין 43 | DB8 — Parallel data bit 8 |
| פין 44 | DB9 — Parallel data bit 9 |
| פין 45 | DB10 — Parallel data bit 10 |
| פין 46 | DB11 — Parallel data bit 11 |
| פין 47 | DB12 — Parallel data bit 12 |
| פין 48 | DB13 — Parallel data bit 13 |
| פין 49 | DB14 — Parallel data bit 14 |
| פין 50 | DB15 — Parallel data bit 15 |
| פין 51 | DVCC — Digital supply voltage (5 V) |
| פין 52 | DGND — Digital ground |
| פין 53 | VDRIVE — Logic supply voltage |
| פין 54 | RESET — Reset input |
| פין 55 | DOUTA — Serial data output A |
| פין 56 | DOUTB — Serial data output B |
| פין 57 | DB16 — Parallel data bit 16 |
| פין 58 | DB17 — Parallel data bit 17 |
| פין 59 | DB18 — Parallel data bit 18 |
| פין 60 | DB19 — Parallel data bit 19 |
| פין 61 | DB20 — Parallel data bit 20 |
| פין 62 | DB21 — Parallel data bit 21 |
| פין 63 | DB22 — Parallel data bit 22 |
| פין 64 | DB23 — Parallel data bit 23 |
יישומים טיפוסיים
AD7609BSTZ מתאים עבור 6 יישוםs: Power Line Monitoring, Motor Control, Industrial Data Acquisition, Protective Relays, Three-Phase Power Quality Analysis, Multi-Axis Motion Control.
Power Line Monitoring
The AD7609BSTZ is ideal for power line monitoring due to its 8-channel simultaneous sampling capability and 18-bit resolution. It can measure three-phase voltages and currents with accurate phase alignment, which is critical for protective relays and power quality analysis. The wide input range (±5 V or ±10 V) and robust input protection (±16.5 V) handle the transients common in power systems. The 200 kSPS throughput ensures fast response to grid events, while the integrated antialiasing filter simplifies the analog front end. According to the AD7609 datasheet, the device's high input impedance (1 MΩ) eliminates the need for driver op amps, reducing component count and board space.
מומלץ
Motor Control
The AD7609BSTZ is well-suited for motor control applications, particularly field-oriented control (FOC) of AC motors. Its 8-channel simultaneous sampling capability allows precise measurement of multiple phase currents and voltages simultaneously, which is essential for accurate torque and speed control. The 18-bit resolution provides high precision, while the 200 kSPS throughput supports fast control loops. The true differential inputs reject common-mode noise, improving measurement accuracy in noisy industrial environments. According to the AD7609 datasheet, the device's integrated antialiasing filter and high input impedance simplify the analog front end, reducing design complexity and cost.
מומלץ
Industrial Data Acquisition
The AD7609BSTZ is a complete data acquisition system (DAS) that integrates the entire analog front end, making it ideal for industrial data acquisition applications. It features 8 true differential input channels with ±5 V or ±10 V ranges, 18-bit resolution, and 200 kSPS throughput. The device includes input clamp protection up to ±16.5 V, a second-order antialiasing filter, and a 2.5 V internal reference. According to the AD7609 datasheet, the high input impedance (1 MΩ) eliminates the need for external driver op amps, simplifying design. The serial and parallel interfaces provide flexibility for connecting to various microcontrollers and DSPs.
מומלץ
Protective Relays
The AD7609BSTZ is designed for protective relays in power systems, where accurate and simultaneous measurement of voltage and current is critical. Its 8-channel simultaneous sampling capability ensures phase alignment between channels, which is essential for calculating power and detecting faults. The 18-bit resolution provides high accuracy, while the 200 kSPS throughput enables fast response to transient events. The device's input clamp protection (±16.5 V) and wide input range (±5 V or ±10 V) handle the harsh conditions of power systems. According to the AD7609 datasheet, the integrated antialiasing filter and high input impedance simplify the analog front end, reducing component count and improving reliability.
מומלץ
Three-Phase Power Quality Analysis
The AD7609BSTZ is ideal for three-phase power quality analysis, where simultaneous sampling of multiple voltage and current channels is required to accurately compute power parameters such as active power, reactive power, and harmonics. The device's 8 channels can measure three-phase voltages and currents simultaneously, preserving phase relationships. The 18-bit resolution and 200 kSPS throughput provide the accuracy and speed needed for detailed harmonic analysis. According to the AD7609 datasheet, the true differential inputs reject common-mode noise, improving measurement accuracy in industrial environments. The integrated antialiasing filter simplifies external filtering, reducing design complexity.
מומלץ
Multi-Axis Motion Control
The AD7609BSTZ is suitable for multi-axis motion control systems, where simultaneous sampling of position and current feedback signals is essential for coordinated motion. Its 8-channel simultaneous sampling capability allows precise measurement of multiple axes at the same instant, ensuring accurate synchronization. The 18-bit resolution provides high precision, while the 200 kSPS throughput supports fast control loops. The true differential inputs reject common-mode noise, improving measurement accuracy in noisy industrial environments. According to the AD7609 datasheet, the device's integrated antialiasing filter and high input impedance simplify the analog front end, reducing design complexity and cost.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור AD7609BSTZ — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | AD7606BSTZ | AD7606BSTZ-RL | AD7609BSTZ-RL | AD7606C-16BSTZ-RL | AD7608BSTZ |
|---|---|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 18 bits | 16 bits | 16 bits | 18 bits | 16 bits | 14 bits |
| Number of Channels | 8 | 8 | 8 | 8 | 8 | 8 |
| Throughput Rate | 200 kSPS | 200 kSPS | 200 kSPS | 200 kSPS | 200 kSPS | 200 kSPS |
| Input Voltage Range | ±5 V or ±10 V | ±5 V or ±10 V | ±5 V or ±10 V | ±5 V or ±10 V | ±5 V or ±10 V | ±5 V or ±10 V |
| Interface | SPI, DSP, parallel | SPI, DSP, parallel | SPI, DSP, parallel | SPI, DSP, parallel | SPI, DSP, parallel | SPI, DSP, parallel |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
מבדילים עיקריים
- 18-bit resolution with 8 simultaneous sampling channels (לעומתAD7606BSTZ)
- True differential inputs with ±16.5 V clamp protection (לעומתAD7608BSTZ)
- 200 kSPS throughput on all channels simultaneously (לעומתAD7606C-16BSTZ-RL)
הערות תכנון
Decouple the AVCC and DVCC supplies with 10 µF and 0.1 µF capacitors placed close to the pins. Use a low-impedance ground plane to minimize noise coupling. The AD7609BSTZ operates from a single 5 V supply, simplifying power design. According to the AD7609 datasheet, proper decoupling is essential for achieving the specified 18-bit performance.
Place the AD7609BSTZ on a PCB with a solid ground plane and separate analog and digital ground areas. Keep analog input traces short and shielded to minimize noise pickup. The device's high input impedance (1 MΩ) reduces the need for driver op amps, but proper layout is still critical for maintaining signal integrity. According to the AD7609 datasheet, the input clamp protection tolerates voltages up to ±16.5 V, providing robustness in industrial environments.
Ensure the REF SELECT pin is set correctly: high for internal reference, low for external. If using an external reference, apply it to the REFIN pin. The RANGE pin selects ±5 V or ±10 V input range; set it according to your signal levels. According to the AD7609 datasheet, the PAR/SER/BYTE pin selects the interface mode; ensure it is configured correctly for your microcontroller. Avoid exceeding the absolute maximum ratings on any pin.
מידע על תאימות
RoHS compliance confirmed by distributor listings. Other compliance data not explicitly stated in the provided data.
