AD5381BSTZ-3 - 40-Channel 12-Bit DAC | Analog Devices
MPN: AD5381BSTZ-3 ✓ Hoạt độngAD5381BSTZ-3 Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho AD5381BSTZ-3 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với AD5381BSTZ-3 (cùng hình factor và footprint) — khác nhau ở Supply Voltage, Resolution, Internal Reference, Settling Time, Number of Channels.
AD5381BSTZ-5
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →AD5371BSTZ
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
AD5372BSTZ
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →AD5380BSTZ-3
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
AD5381BSTZ-3
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →AD5381BSTZ-3 Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 12 bits |
| Number of Channels | 40 |
| Điện áp cung cấp | 3 V single supply |
| Settling Time | 8 µs |
| Kiểu đầu ra | Voltage - buffered |
| Output Amplifier | Rail-to-rail |
| Internal Reference | 1.25 V (default), programmable to 2.5 V |
| Reference Temperature Coefficient | 10 ppm/°C |
| Giao diện | Parallel, SPI, DSP, MICROWIRE |
| Hộp | 100-lead LQFP (14x14 mm) |
| Khoảng nhiệt độ hoạt động | -40°C to +85°C |
| Power-On Reset | Zero-scale or midscale |
| Channel Monitor | Yes (MON_OUT pin) |
| RoHS | Compliant |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân AD5381BSTZ-3
| Chân 1 | VOUT0 — Analog output channel 0 |
| Chân 2 | VOUT1 — Analog output channel 1 |
| Chân 3 | VOUT2 — Analog output channel 2 |
| Chân 4 | VOUT3 — Analog output channel 3 |
| Chân 5 | VOUT4 — Analog output channel 4 |
| Chân 6 | VOUT5 — Analog output channel 5 |
| Chân 7 | VOUT6 — Analog output channel 6 |
| Chân 8 | VOUT7 — Analog output channel 7 |
| Chân 9 | VOUT8 — Analog output channel 8 |
| Chân 10 | VOUT9 — Analog output channel 9 |
| Chân 11 | VOUT10 — Analog output channel 10 |
| Chân 12 | VOUT11 — Analog output channel 11 |
| Chân 13 | VOUT12 — Analog output channel 12 |
| Chân 14 | VOUT13 — Analog output channel 13 |
| Chân 15 | VOUT14 — Analog output channel 14 |
| Chân 16 | VOUT15 — Analog output channel 15 |
| Chân 17 | VOUT16 — Analog output channel 16 |
| Chân 18 | VOUT17 — Analog output channel 17 |
| Chân 19 | VOUT18 — Analog output channel 18 |
| Chân 20 | VOUT19 — Analog output channel 19 |
| Chân 21 | VOUT20 — Analog output channel 20 |
| Chân 22 | VOUT21 — Analog output channel 21 |
| Chân 23 | VOUT22 — Analog output channel 22 |
| Chân 24 | VOUT23 — Analog output channel 23 |
| Chân 25 | VOUT24 — Analog output channel 24 |
| Chân 26 | VOUT25 — Analog output channel 25 |
| Chân 27 | VOUT26 — Analog output channel 26 |
| Chân 28 | VOUT27 — Analog output channel 27 |
| Chân 29 | VOUT28 — Analog output channel 28 |
| Chân 30 | VOUT29 — Analog output channel 29 |
| Chân 31 | VOUT30 — Analog output channel 30 |
| Chân 32 | VOUT31 — Analog output channel 31 |
| Chân 33 | VOUT32 — Analog output channel 32 |
| Chân 34 | VOUT33 — Analog output channel 33 |
| Chân 35 | VOUT34 — Analog output channel 34 |
| Chân 36 | VOUT35 — Analog output channel 35 |
| Chân 37 | VOUT36 — Analog output channel 36 |
| Chân 38 | VOUT37 — Analog output channel 37 |
| Chân 39 | VOUT38 — Analog output channel 38 |
| Chân 40 | VOUT39 — Analog output channel 39 |
| Chân 41 | AVDD — Analog power supply |
| Chân 42 | AVSS — Analog ground |
| Chân 43 | DVDD — Digital power supply |
| Chân 44 | DGND — Digital ground |
| Chân 45 | REFIN/REFOUT — Reference input/output |
| Chân 46 | MON_OUT — Channel monitor output |
| Chân 47 | SER/PAR — Serial/parallel interface select |
| Chân 48 | SPI/I2C — SPI or I2C select (pin 97) |
| Chân 49 | SCLK — Serial clock |
| Chân 50 | SDIN — Serial data input |
| Chân 51 | SYNC — Frame synchronization |
| Chân 52 | LDAC — Load DAC |
| Chân 53 | CLR — Clear |
| Chân 54 | RESET — Reset |
| Chân 55 | A0-A9 — Address inputs |
| Chân 56 | DB0-DB11 — Parallel data inputs |
| Chân 57 | CS — Chip select |
| Chân 58 | WR — Write |
| Chân 59 | RD — Read |
| Chân 60 | BUSY — Busy output |
Ứng dụng tiêu biểu
AD5381BSTZ-3 phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho AD5381BSTZ-3 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- 40-channel density in a 100-lead LQFP (vsAD5372BSTZ)
- 12-bit resolution with 8 µs settling time (vsAD5371BSTZ)
- 3 V single-supply operation (vsAD5381BSTZ-5)
Ghi chú thiết kế
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.
Thông tin tuân thủ
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
