Analog Devices

AD5381BSTZ-5 - 40-Channel 12-Bit DAC | Analog Devices

MPN: AD5381BSTZ-5 βœ“ Active
In Stock Ships in 1-3 business days
5 V (single supply) Vdss 100-LQFP (14x14 mm) Package
From $15.9 USD / Unit
MOQ: 1 |
Price updated: 2026-08-22
Volume Pricing
Qty Unit Price Extended
1 $24.5 $24.50
10 $22.1 $221.00
100 $19.8 $1,980.00
500 $17.6 $8,800.00
1,000 $15.9 $15,900.00
ℹ️ All prices are in USD

Drop-in alternatives for AD5381BSTZ-5 β€” same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool β€” Select alternative parts for side-by-side comparison:

AD5381BSTZ-5-REEL

βœ… Drop-In
πŸ“¦ 100-LQFP (14x14 mm)
Same die and package, tape-and-reel packaging variant

πŸ“‹ Reference alternative (not in catalog)

AD5381BSTZ-3

βœ… Drop-In
Analog Devices
πŸ“¦ 100-LQFP (14x14 mm)
12 bits Β· 40 Β· 3 V single supply Β· 8 Β΅s Β· Voltage - buffered Β· Rail-to-rail Β· 1.25 V (default), programmable to 2.5 V Β· 10 ppm/Β°C

βœ“ In Stock

$46.83 / Unit

View Datasheet β†’

AD5381BST-5

βœ… Drop-In
πŸ“¦ 100-LQFP (14x14 mm)
Non-lead-free version, same package and pinout

πŸ“‹ Reference alternative (not in catalog)

AD5381BSTZ-5-REEL7

βœ… Drop-In
πŸ“¦ 100-LQFP (14x14 mm)
Tape-and-reel packaging variant, same die

πŸ“‹ Reference alternative (not in catalog)

AD5381BSTZ-5-REEL

βœ… Drop-In
πŸ“¦ 100-LQFP (14x14 mm)
Tape-and-reel packaging variant, same die

πŸ“‹ Reference alternative (not in catalog)

AD5381BSTZ-5 Maximum Ratings & Electrical Characteristics

Number of Channels 40
Resolution 12 Bit
Supply Voltage 5 V (single supply)
Data Interface Serial, Parallel
Output Type Voltage - Buffered
INL Error Β±1 LSB max
Reference Type Internal, External
Internal Reference 1.25 V / 2.5 V, 10 ppm/Β°C
Operating Temperature -40Β°C to +85Β°C
Package / Case 100-LQFP (14x14 mm)
Mounting Type Surface Mount
Packaging Cut Tape (CT)
Output Amplifier Rail-to-rail
Power-Down Mode Yes
Channel Monitor Yes (MON_OUT pin)

AD5381BSTZ-5 Pin Configuration

Electronic Component Package Diagram Default generic electronic component package diagram 1 2 3 Package
Pin 1 VOUT0 β€” Analog output channel 0
Pin 2 VOUT1 β€” Analog output channel 1
Pin 3 VOUT2 β€” Analog output channel 2
Pin 4 VOUT3 β€” Analog output channel 3
Pin 5 VOUT4 β€” Analog output channel 4
Pin 6 VOUT5 β€” Analog output channel 5
Pin 7 VOUT6 β€” Analog output channel 6
Pin 8 VOUT7 β€” Analog output channel 7
Pin 9 VOUT8 β€” Analog output channel 8
Pin 10 VOUT9 β€” Analog output channel 9
Pin 11 VOUT10 β€” Analog output channel 10
Pin 12 VOUT11 β€” Analog output channel 11
Pin 13 VOUT12 β€” Analog output channel 12
Pin 14 VOUT13 β€” Analog output channel 13
Pin 15 VOUT14 β€” Analog output channel 14
Pin 16 VOUT15 β€” Analog output channel 15
Pin 17 VOUT16 β€” Analog output channel 16
Pin 18 VOUT17 β€” Analog output channel 17
Pin 19 VOUT18 β€” Analog output channel 18
Pin 20 VOUT19 β€” Analog output channel 19
Pin 21 VOUT20 β€” Analog output channel 20
Pin 22 VOUT21 β€” Analog output channel 21
Pin 23 VOUT22 β€” Analog output channel 22
Pin 24 VOUT23 β€” Analog output channel 23
Pin 25 VOUT24 β€” Analog output channel 24
Pin 26 VOUT25 β€” Analog output channel 25
Pin 27 VOUT26 β€” Analog output channel 26
Pin 28 VOUT27 β€” Analog output channel 27
Pin 29 VOUT28 β€” Analog output channel 28
Pin 30 VOUT29 β€” Analog output channel 29
Pin 31 VOUT30 β€” Analog output channel 30
Pin 32 VOUT31 β€” Analog output channel 31
Pin 33 VOUT32 β€” Analog output channel 32
Pin 34 VOUT33 β€” Analog output channel 33
Pin 35 VOUT34 β€” Analog output channel 34
Pin 36 VOUT35 β€” Analog output channel 35
Pin 37 VOUT36 β€” Analog output channel 36
Pin 38 VOUT37 β€” Analog output channel 37
Pin 39 VOUT38 β€” Analog output channel 38
Pin 40 VOUT39 β€” Analog output channel 39
Pin 41 AVDD β€” Analog supply voltage
Pin 42 AGND β€” Analog ground
Pin 43 DVDD β€” Digital supply voltage
Pin 44 DGND β€” Digital ground
Pin 45 REFIN/REFOUT β€” Reference input/output
Pin 46 MON_OUT β€” Channel monitor output
Pin 47 SER/PAR β€” Serial/parallel interface select
Pin 48 SPI/I2C β€” SPI or I2C select (Pin 97)
Pin 49 SCLK β€” Serial clock input
Pin 50 SDIN β€” Serial data input
Pin 51 SYNC β€” Frame synchronization input
Pin 52 SDO β€” Serial data output
Pin 53 LDAC β€” Load DAC latch
Pin 54 CLR β€” Clear all DACs to zero-scale
Pin 55 PD β€” Power-down input
Pin 56 RESET β€” Reset to default state
Pin 57 A0-A9 β€” Address inputs for parallel mode
Pin 58 D0-D11 β€” Parallel data inputs
Pin 59 CS β€” Chip select
Pin 60 WR β€” Write strobe
Pin 61 RD β€” Read strobe
Pin 62 BUSY β€” Busy indicator
Pin 63 VLOGIC β€” Logic supply voltage
Pin 64 NC β€” No connect

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for AD5381BSTZ-5 Drain-to-Source Voltage (Vds) Drain Current (Id)

No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

AD5381BSTZ-5 is suitable for 6 applications: Industrial Process Control, Automated Test Equipment (ATE), Instrumentation, Optical Module Bias, Medical Instrumentation, Audio Test and Measurement.

🏭

Industrial Process Control

The AD5381BSTZ-5 provides 40 channels of 12-bit analog output for controlling valves, actuators, and setpoints in industrial process control systems. Its rail-to-rail output and single 5V supply simplify interfacing with industrial sensors and actuators. The channel monitor function allows real-time diagnostics of each output without disturbing the control loop. With an INL of Β±1 LSB, it ensures precise setpoint accuracy, critical for maintaining process stability. The industrial temperature range (-40Β°C to +85Β°C) ensures reliable operation in harsh factory environments.

πŸ”§

Automated Test Equipment (ATE)

In ATE, the AD5381BSTZ-5 generates multiple precision bias voltages and stimulus signals for testing DUTs. Its 40-channel density reduces board space and cost compared to using multiple lower-channel DACs. The serial interface supports daisy-chaining for even more channels, and the parallel interface enables high-speed updates for dynamic testing. The internal reference with 10 ppm/Β°C drift provides stable voltages over temperature, ensuring test repeatability. The power-down mode helps reduce heat in dense test systems.

πŸ”§

Instrumentation

The AD5381BSTZ-5 is ideal for precision instrumentation requiring multiple analog outputs, such as calibrators, signal generators, and data acquisition systems. Its 12-bit resolution and low INL ensure accurate output voltages. The rail-to-rail output allows full-scale swings, maximizing dynamic range. The channel monitor function enables self-test and calibration routines. The compact 100-lead LQFP package fits space-constrained designs, and the single-supply operation simplifies power design.

🌐

Optical Module Bias

The AD5381BSTZ-5 provides multiple bias voltages for optical transceivers, such as MZM bias control and APD bias. Its 40 channels can individually set bias points for multiple optical components, reducing component count. The low drift internal reference ensures stable bias over temperature, critical for optical performance. The serial interface allows easy configuration from a microcontroller. The power-down mode reduces power consumption when channels are not in use.

πŸ’Š

Medical Instrumentation

In medical devices like patient monitors and diagnostic equipment, the AD5381BSTZ-5 generates precise analog voltages for sensor excitation and control. Its 40 channels can drive multiple transducers, and the rail-to-rail output ensures full-scale signals. The industrial temperature range covers medical environments. The channel monitor function aids in fault detection, enhancing patient safety. The low power consumption in power-down mode is beneficial for battery-operated devices.

🎧

Audio Test and Measurement

The AD5381BSTZ-5 can generate multiple DC bias voltages for audio test systems, such as setting operating points for amplifiers or attenuators. Its 12-bit resolution provides fine voltage steps, and the low noise output is suitable for audio applications. The serial interface allows easy integration with DSPs. The channel monitor function enables verification of output voltages during test. The compact package is ideal for portable test equipment.

What is the AD5381BSTZ-5?
The AD5381BSTZ-5 is a 40-channel, 12-bit digital-to-analog converter (DAC) from Analog Devices. It operates from a single 5V supply and includes rail-to-rail output amplifiers on all channels. According to the AD5381 datasheet (Rev. F), it features a programmable internal reference and a channel monitor function.
What is the resolution of the AD5381BSTZ-5?
The AD5381BSTZ-5 has a resolution of 12 bits, providing 4096 discrete output levels. This is specified in the Analog Devices datasheet for the AD5381. The device guarantees monotonic INL error of Β±1 LSB max, ensuring accurate analog output.
What is the supply voltage range for AD5381BSTZ-5?
The AD5381BSTZ-5 operates from a single 5V supply. The '5' suffix indicates the 5V version. A 3V version, AD5381BSTZ-3, is also available. The datasheet specifies the supply voltage as 5V for this variant.
How many channels does the AD5381BSTZ-5 have?
The AD5381BSTZ-5 has 40 DAC channels, each with an on-chip output amplifier with rail-to-rail operation. This is stated in the Analog Devices product description. The high channel count makes it suitable for multi-channel voltage biasing applications.
What is the package type of AD5381BSTZ-5?
The AD5381BSTZ-5 is available in a 100-lead LQFP package with dimensions of 14x14 mm. This is confirmed by DigiKey and Mouser listings. The package is surface mount, suitable for compact PCB designs.
What is the operating temperature range of AD5381BSTZ-5?
The AD5381BSTZ-5 operates over the industrial temperature range of -40Β°C to +85Β°C. This is specified in the datasheet and distributor listings. It is suitable for industrial and automotive environments.
Does the AD5381BSTZ-5 have an internal reference?
Yes, the AD5381BSTZ-5 includes a programmable internal reference of 1.25V or 2.5V with a temperature coefficient of 10 ppm/Β°C. This is detailed in the AD5381 datasheet. An external reference can also be used if higher accuracy is required.
What is the data interface of AD5381BSTZ-5?
The AD5381BSTZ-5 supports both serial and parallel interfaces. The serial interface is compatible with SPI, DSP, and MICROWIRE. The SER/PAR pin selects the mode, and the SPI/I2C pin (Pin 97) should be tied low for serial mode, as per the datasheet.
What is the price of AD5381BSTZ-5?
As of 2026-08-23, the AD5381BSTZ-5 is priced at approximately $24.50 for single-unit quantities, with volume pricing decreasing to around $15.90 at 1000 units. Prices are from distributor listings on DigiKey and Mouser and may vary.
Where can I buy AD5381BSTZ-5?
The AD5381BSTZ-5 is available from major distributors including DigiKey, Mouser, and Octopart. As of 2026-08-23, DigiKey lists it as 'ships today' with stock available. You can also request quotes from other authorized distributors.
What is the lead time for AD5381BSTZ-5?
The lead time for AD5381BSTZ-5 varies by distributor and stock levels. As of 2026-08-23, DigiKey indicates it is in stock and ships immediately. For larger quantities, lead times may be 4-6 weeks. Check with your preferred distributor for current lead times.
Is AD5381BSTZ-5 in stock?
As of 2026-08-23, the AD5381BSTZ-5 is in stock at DigiKey and Mouser, according to their websites. Octopart shows availability from 6 distributors. Stock levels can change, so verify current availability before ordering.
What is the difference between AD5381BSTZ-5 and AD5381BSTZ-3?
The AD5381BSTZ-5 operates from a 5V supply, while the AD5381BSTZ-3 operates from a 3V supply. Both are 40-channel, 12-bit DACs in the same 100-lead LQFP package. The output voltage range and reference settings differ based on supply voltage. Choose based on your system's supply rail.
Can the AD5381BSTZ-5 be used in industrial control systems?
Yes, the AD5381BSTZ-5 is well-suited for industrial control systems due to its 40-channel density, 12-bit resolution, and industrial temperature range. It can generate multiple analog control voltages for valves, actuators, and other process control elements. Its rail-to-rail output simplifies interfacing.
What is the best drop-in replacement for AD5381BSTZ-5?
The best drop-in replacement for AD5381BSTZ-5 is the AD5381BSTZ-5-REEL, which is the same device in tape-and-reel packaging. For a 3V supply version, the AD5381BSTZ-3 is pin-compatible. No cross-brand drop-in replacements are known; verify pin compatibility before substituting.

Engineering reference data for AD5381BSTZ-5 β€” comparison, design guidance, and compliance information.

Selection Guide

Choose the AD5381BSTZ-5 when you need a 40-channel, 12-bit DAC operating from a 5V supply. It is ideal for applications requiring many analog outputs, such as industrial control, ATE, and optical module bias. If your system uses a 3V supply, select the AD5381BSTZ-3 instead. For tape-and-reel packaging, use the AD5381BSTZ-5-REEL. The AD5381BST-5 is a non-lead-free version, suitable for legacy designs. All alternatives are pin-compatible drop-ins, allowing easy substitution without PCB changes.

Comparison with Alternatives

Parameter This Product AD5381BSTZ-5-REEL AD5381BSTZ-3 AD5381BST-5
Package 100-LQFP (14x14 mm) 100-LQFP (14x14 mm) - same 100-LQFP (14x14 mm) - same 100-LQFP (14x14 mm) - same
Brand Analog Devices Analog Devices Analog Devices Analog Devices
Supply Voltage 5V 5V 3V 5V
Resolution 12-bit 12-bit 12-bit 12-bit
Number of Channels 40 40 40 40
INL Error Β±1 LSB max Β±1 LSB max Β±1 LSB max Β±1 LSB max
Internal Reference 1.25V/2.5V, 10 ppm/Β°C 1.25V/2.5V, 10 ppm/Β°C 1.25V/2.5V, 10 ppm/Β°C 1.25V/2.5V, 10 ppm/Β°C
Operating Temperature -40Β°C to +85Β°C -40Β°C to +85Β°C -40Β°C to +85Β°C -40Β°C to +85Β°C

Key Differentiators

  • 40-channel density in a single package (vs AD5381BSTZ-3)
  • 5V single-supply operation (vs AD5381BSTZ-3)
  • On-chip channel monitor (vs AD5381BSTZ-5-REEL)

Design Notes

Decouple AVDD and DVDD with 0.1Β΅F and 10Β΅F capacitors placed as close to the pins as possible. Use separate analog and digital ground planes to minimize noise coupling. The AD5381 operates from a single 5V supply; ensure the supply is clean and stable to maintain DAC accuracy.

For the 100-lead LQFP package, ensure proper solder paste stencil design to avoid bridging. Use a thermal pad if available for heat dissipation. Route analog outputs away from digital traces to reduce crosstalk. Follow the layout guidelines in the AD5381 datasheet for optimal performance.

When using serial mode, tie SER/PAR high and SPI/I2C low (Pin 97). Ensure the interface timing meets the datasheet specifications to avoid data corruption. The internal reference output should be buffered if driving external loads. Do not exceed the absolute maximum ratings for supply voltage.

Compliance Information

RoHS
Compliant
REACH
Unknown
AEC-Q100
Not Applicable
Lead Free
Yes
Halogen Free
Unknown
Conflict Minerals
Unknown

The 'Z' suffix in AD5381BSTZ-5 indicates lead-free (RoHS compliant) per Analog Devices naming convention. REACH and conflict minerals status not specified in provided data.

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