AD5381BSTZ-3 - 40-Channel 12-Bit DAC | Analog Devices
MPN: AD5381BSTZ-3 ✓ פעילAD5381BSTZ-3 סקירה
A digital-to-analog converter (DAC) is an electronic component that converts digital binary data into an analog voltage or current. In the hierarchy of signal processing, a DAC is a key element in the data converter family, which also includes analog-to-digital converters (ADCs). DACs are essential in systems where digital processing must interface with the analog world, such as in audio playback, motor control, and instrumentation. The AD5381 is a dense DAC, integrating 40 channels in a single package, which reduces board space and simplifies multi-channel systems.
Key features of the AD5381BSTZ-3 include 12-bit resolution, 40 independent output channels, a settling time of 8 µs, and a programmable internal reference with 10 ppm/°C drift. The device also offers a power-on reset to zero-scale or midscale, and a clear function to reset outputs. The rail-to-rail output amplifiers allow the outputs to swing close to the supply rails, maximizing dynamic range. The channel monitor function simplifies system diagnostics by allowing external monitoring of any channel.
Technically, the AD5381 uses a resistor-string architecture with an output buffer for each channel, ensuring monotonicity and low glitch. The device supports both serial and parallel interfaces, with the SER/PAR pin selecting the mode. In serial mode, the SPI/I2C pin (Pin 97) must be tied low for SPI-compatible operation. The internal reference can be programmed to 1.25 V or 2.5 V via the control register, but operating with 2.5 V reference degrades accuracy and limits input code range, as noted in the datasheet.
Typical applications include industrial process control, automated test equipment, multi-channel data acquisition systems, and precision instrumentation. The 40-channel density and 3 V operation make it ideal for systems requiring many analog outputs with minimal power consumption. The device's rail-to-rail outputs and programmable reference enhance flexibility in various voltage domains.
When designing with the AD5381BSTZ-3, ensure adequate decoupling on the AVDD and DVDD supplies, and consider the reference voltage selection carefully to meet accuracy requirements. The channel monitor function can be used for system-level calibration and fault detection.
חלופות תחליף ישיר עבור AD5381BSTZ-3 — 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 AD5381BSTZ-3 (אותו גורם צורה וטביעת רגל) — שונים ב Supply Voltage, Resolution, Internal Reference, Settling Time, Number of Channels.
AD5381BSTZ-5
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←AD5371BSTZ
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
AD5372BSTZ
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←AD5380BSTZ-3
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
AD5381BSTZ-3
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←AD5381BSTZ-3 דירוגים מרביים ומאפיינים חשמליים
| רזולוציה | 12 bits |
| Number of Channels | 40 |
| מתח אספקה | 3 V single supply |
| Settling Time | 8 µs |
| סוג פלט | Voltage - buffered |
| Output Amplifier | Rail-to-rail |
| Internal Reference | 1.25 V (default), programmable to 2.5 V |
| Reference Temperature Coefficient | 10 ppm/°C |
| ממשק | Parallel, SPI, DSP, MICROWIRE |
| מארז | 100-lead LQFP (14x14 mm) |
| טווח טמפרטורת פעולה | -40°C to +85°C |
| Power-On Reset | Zero-scale or midscale |
| Channel Monitor | Yes (MON_OUT pin) |
| RoHS | Compliant |
| סוג הרכבה | Surface Mount |
תצורת פינים של AD5381BSTZ-3
| פין 1 | VOUT0 — Analog output channel 0 |
| פין 2 | VOUT1 — Analog output channel 1 |
| פין 3 | VOUT2 — Analog output channel 2 |
| פין 4 | VOUT3 — Analog output channel 3 |
| פין 5 | VOUT4 — Analog output channel 4 |
| פין 6 | VOUT5 — Analog output channel 5 |
| פין 7 | VOUT6 — Analog output channel 6 |
| פין 8 | VOUT7 — Analog output channel 7 |
| פין 9 | VOUT8 — Analog output channel 8 |
| פין 10 | VOUT9 — Analog output channel 9 |
| פין 11 | VOUT10 — Analog output channel 10 |
| פין 12 | VOUT11 — Analog output channel 11 |
| פין 13 | VOUT12 — Analog output channel 12 |
| פין 14 | VOUT13 — Analog output channel 13 |
| פין 15 | VOUT14 — Analog output channel 14 |
| פין 16 | VOUT15 — Analog output channel 15 |
| פין 17 | VOUT16 — Analog output channel 16 |
| פין 18 | VOUT17 — Analog output channel 17 |
| פין 19 | VOUT18 — Analog output channel 18 |
| פין 20 | VOUT19 — Analog output channel 19 |
| פין 21 | VOUT20 — Analog output channel 20 |
| פין 22 | VOUT21 — Analog output channel 21 |
| פין 23 | VOUT22 — Analog output channel 22 |
| פין 24 | VOUT23 — Analog output channel 23 |
| פין 25 | VOUT24 — Analog output channel 24 |
| פין 26 | VOUT25 — Analog output channel 25 |
| פין 27 | VOUT26 — Analog output channel 26 |
| פין 28 | VOUT27 — Analog output channel 27 |
| פין 29 | VOUT28 — Analog output channel 28 |
| פין 30 | VOUT29 — Analog output channel 29 |
| פין 31 | VOUT30 — Analog output channel 30 |
| פין 32 | VOUT31 — Analog output channel 31 |
| פין 33 | VOUT32 — Analog output channel 32 |
| פין 34 | VOUT33 — Analog output channel 33 |
| פין 35 | VOUT34 — Analog output channel 34 |
| פין 36 | VOUT35 — Analog output channel 35 |
| פין 37 | VOUT36 — Analog output channel 36 |
| פין 38 | VOUT37 — Analog output channel 37 |
| פין 39 | VOUT38 — Analog output channel 38 |
| פין 40 | VOUT39 — Analog output channel 39 |
| פין 41 | AVDD — Analog power supply |
| פין 42 | AVSS — Analog ground |
| פין 43 | DVDD — Digital power supply |
| פין 44 | DGND — Digital ground |
| פין 45 | REFIN/REFOUT — Reference input/output |
| פין 46 | MON_OUT — Channel monitor output |
| פין 47 | SER/PAR — Serial/parallel interface select |
| פין 48 | SPI/I2C — SPI or I2C select (pin 97) |
| פין 49 | SCLK — Serial clock |
| פין 50 | SDIN — Serial data input |
| פין 51 | SYNC — Frame synchronization |
| פין 52 | LDAC — Load DAC |
| פין 53 | CLR — Clear |
| פין 54 | RESET — Reset |
| פין 55 | A0-A9 — Address inputs |
| פין 56 | DB0-DB11 — Parallel data inputs |
| פין 57 | CS — Chip select |
| פין 58 | WR — Write |
| פין 59 | RD — Read |
| פין 60 | BUSY — Busy output |
יישומים טיפוסיים
AD5381BSTZ-3 מתאים עבור 6 יישוםs: Industrial Process Control, Automated Test Equipment (ATE), Multi-Channel Data Acquisition Systems, Precision Instrumentation, Medical Equipment, Audio Test and Measurement.
Industrial Process Control
The AD5381BSTZ-3 provides 40 independent 12-bit analog outputs for controlling valves, actuators, and setpoints in industrial automation. Its 3 V single-supply operation and rail-to-rail outputs allow direct interface with low-voltage control loops. The 8 µs settling time enables fast updates for real-time process adjustments. The channel monitor function simplifies system diagnostics by allowing external monitoring of any output. With a programmable internal reference, the device can be calibrated for various industrial signal ranges, making it ideal for PLCs and distributed control systems.
מומלץ
Automated Test Equipment (ATE)
In ATE, the AD5381BSTZ-3 generates precise analog stimulus voltages for testing DUTs. Its 40 channels allow simultaneous stimulation of multiple pins, reducing test time. The 12-bit resolution and 8 µs settling time provide accurate and fast signal generation. The rail-to-rail outputs ensure full-scale voltage coverage. The channel monitor function enables real-time verification of output levels. The device's serial interface simplifies integration with FPGA-based test controllers. Its industrial temperature range ensures reliable operation in test environments.
מומלץ
Multi-Channel Data Acquisition Systems
The AD5381BSTZ-3 is ideal for data acquisition systems requiring many analog outputs, such as waveform generators and programmable voltage sources. Its 40 channels provide high density, reducing board space. The 3 V supply is compatible with low-power systems. The internal reference with 10 ppm/°C drift ensures stable output over temperature. The channel monitor allows output verification. The device's parallel interface enables high-speed updates for dynamic waveforms. The rail-to-rail outputs maximize dynamic range for signal generation.
מומלץ
Precision Instrumentation
In precision instruments like calibrators and signal generators, the AD5381BSTZ-3 provides accurate analog outputs. Its 12-bit resolution and low drift reference ensure high accuracy. The 40 channels allow multiple independent outputs for complex test setups. The rail-to-rail outputs provide wide voltage swings. The channel monitor function aids in calibration. The device's small LQFP package saves space in benchtop instruments. The industrial temperature range ensures stability in lab environments.
מומלץ
Medical Equipment
The AD5381BSTZ-3 can be used in medical devices requiring multiple analog outputs, such as patient monitoring systems and diagnostic equipment. Its 3 V operation is suitable for battery-powered devices. The 40 channels allow control of multiple parameters. The rail-to-rail outputs interface with various actuators. The channel monitor function enables safety checks. The device's low power consumption extends battery life. The industrial temperature range covers medical environments.
מומלץ
Audio Test and Measurement
The AD5381BSTZ-3 can generate multiple analog test signals for audio equipment testing. Its 40 channels allow simultaneous testing of multi-channel audio systems. The 12-bit resolution provides adequate signal fidelity for many test applications. The 8 µs settling time enables fast frequency sweeps. The rail-to-rail outputs drive audio inputs directly. The channel monitor function allows output verification. The device's serial interface simplifies integration with audio test software.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור AD5381BSTZ-3 — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | AD5381BSTZ-5 | AD5371BSTZ | AD5372BSTZ | AD5380BSTZ-3 |
|---|---|---|---|---|---|
| Package | 100-lead LQFP (14x14 mm) | 100-lead LQFP (14x14 mm) | 100-lead LQFP (14x14 mm) | 100-lead LQFP (14x14 mm) | 100-lead LQFP (14x14 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 12 bits | 12 bits | 14 bits | 14 bits | 14 bits |
| Number of Channels | 40 | 40 | 40 | 32 | 40 |
| Supply Voltage | 3 V | 5 V | 3 V or 5 V | 3 V or 5 V | 3 V |
| Settling Time | 8 µs | 8 µs | 8 µs | 8 µs | 8 µs |
| Internal Reference | 1.25 V (default), programmable to 2.5 V | 1.25 V (default), programmable to 2.5 V | 1.25 V (default), programmable to 2.5 V | 1.25 V (default), programmable to 2.5 V | 1.25 V (default), programmable to 2.5 V |
| Interface | Parallel, SPI, DSP, MICROWIRE | Parallel, SPI, DSP, MICROWIRE | Parallel, SPI, DSP, MICROWIRE | Parallel, SPI, DSP, MICROWIRE | Parallel, SPI, DSP, MICROWIRE |
מבדילים עיקריים
- 40-channel density in a 100-lead LQFP (לעומתAD5372BSTZ)
- 12-bit resolution with 8 µs settling time (לעומתAD5371BSTZ)
- 3 V single-supply operation (לעומתAD5381BSTZ-5)
הערות תכנון
The AD5381BSTZ-3 requires a 3 V analog supply (AVDD) and a digital supply (DVDD). Ensure adequate decoupling with 0.1 µF and 10 µF capacitors close to the AVDD and DVDD pins. The reference pin (REFIN/REFOUT) should be decoupled with a 1 µF capacitor to ground. Proper power supply sequencing is recommended to avoid latch-up.
For optimal performance, place the AD5381BSTZ-3 on a PCB with a solid ground plane. Keep analog and digital grounds separate and connect them at a single point. Route analog output traces away from digital signals to minimize noise coupling. Use short, wide traces for power and ground to reduce inductance.
When using the serial interface, ensure the SER/PAR pin is tied high and the SPI/I2C pin (Pin 97) is tied low for SPI mode. Do not operate the device with a 2.5 V reference if you require full accuracy, as the datasheet warns of degraded accuracy and limited input code range. Always verify the reference voltage setting in the control register.
מידע על תאימות
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
