AD5064BRUZ-REEL7 - 16-Bit Quad nanoDAC, SPI, 4.5-5.5V | ADI
MPN: AD5064BRUZ-REEL7 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.45 | $18.45 |
| 10 | $17.1 | $171.00 |
| 100 | $15.25 | $1,525.00 |
| 500 | $13.6 | $6,800.00 |
| 1,000 | $12.05 | $12,050.00 |
AD5064BRUZ-REEL7 Overview
A Digital-to-Analog Converter (DAC) converts a digital code word into an equivalent analog voltage or current. A nanoDAC is a low-power, compact, high-accuracy DAC family from Analog Devices designed for precision signal-chain applications where board area and power consumption are critical. Within the semiconductor hierarchy, the AD5064 sits in the data converter category, which is a subset of signal conditioning and mixed-signal ICs used in industrial, instrumentation, and communications systems.
Key features of the AD5064 include four independently buffered voltage outputs, individual per-channel reference voltage pins plus a common reference pin, rail-to-rail output amplifier operation, on-chip output buffers and reference buffers, and a 50 MHz SPI-compatible serial interface with readback and daisy-chaining. The device integrates a power-on reset circuit that forces all DAC outputs to zero scale (default) or midscale (programmable) until a valid write occurs, plus three per-channel power-down modes, a hardware LDAC pin, software LDAC override, an asynchronous CLR function, and an SDO pin for SPI daisy-chaining. According to the Analog Devices AD5024/AD5044/AD5064 family datasheet, the part is pin-compatible with and a performance upgrade to the AD5666.
Typical applications include industrial process control (PLC analog output modules), programmable logic controllers, digital gain and offset adjustment, precision programmable voltage and current sources, optical control and laser driver biasing, and data-acquisition system analog output channels. The wide 4.5-5.5 V supply range and low power consumption also suit battery-powered and portable test equipment.
When designing with this part, place the reference-input bypass capacitors as close as possible to the REF pin and keep the SPI traces short and shielded from switching noise. The TSSOP thermal pad (pin 17 / exposed pad) should be soldered to a small copper pour to improve thermal dissipation when multiple channels drive full-scale loads simultaneously.
Drop-in alternatives for AD5064BRUZ-REEL7 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with AD5064BRUZ-REEL7 (same form factor and footprint) — differing in Output Type, Package, Power-Down Modes, Reference Inputs.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AD5064BRUZ-1REEL7
✅ Drop-In📋 Reference alternative (not in catalog)
AD5044BRUZ-REEL7
✅ Drop-In📋 Reference alternative (not in catalog)
AD5024BRUZ-REEL7
✅ Drop-In📋 Reference alternative (not in catalog)
AD5064ARUZ-1REEL7
✅ Drop-In📋 Reference alternative (not in catalog)
AD5064BRUZ-REEL7 Maximum Ratings & Electrical Characteristics
| Resolution | 16 bits |
| Number of DAC Channels | 4 (quad) |
| Output Type | Buffered Voltage |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Relative Accuracy (INL) | ±1 LSB (max) |
| Differential Nonlinearity (DNL) | ±1 LSB (max) |
| Interface | SPI (50 MHz, with SDO readback/daisy-chain) |
| Reference Inputs | Individual per-channel plus common |
| Output Range | Rail-to-rail |
| Power-On Reset | Zero scale or midscale (selectable) |
| Power-Down Modes | 3 per-channel modes |
| LDAC Function | Hardware pin + software override |
| CLR Function | Asynchronous, programmable code |
| Package | 16-TSSOP (RU) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 °C to +125 °C |
| RoHS Status | Compliant |
| Delivery Form | 7-inch Reel (-REEL7) |
AD5064BRUZ-REEL7 Pin Configuration
| Pin 1 | VDD — Power supply input (4.5 V to 5.5 V) |
| Pin 2 | VOUTA — DAC A buffered analog output |
| Pin 3 | VOUTB — DAC B buffered analog output |
| Pin 4 | REFA — Reference input for DAC A |
| Pin 5 | REFB — Reference input for DAC B |
| Pin 6 | GND — Ground |
| Pin 7 | REFC — Reference input for DAC C |
| Pin 8 | REFD — Reference input for DAC D |
| Pin 9 | VOUTC — DAC C buffered analog output |
| Pin 10 | VOUTD — DAC D buffered analog output |
| Pin 11 | SYNC — SPI frame synchronization (active low) |
| Pin 12 | SCLK — SPI serial clock input |
| Pin 13 | DIN — SPI serial data input |
| Pin 14 | SDO — SPI serial data output (daisy-chain/readback) |
| Pin 15 | LDAC — Load DAC (active low, hardware update of all channels) |
| Pin 16 | CLR — Asynchronous clear (active low, programmable code) |
| Pin 17 | EP — Exposed thermal pad (connect to GND plane) |
Typical Applications
AD5064BRUZ-REEL7 is suitable for 6 applications: Industrial Process Control / PLC Analog Output, Precision Programmable Voltage / Current Source, Digital Gain and Offset Adjustment, Optical Control and Laser Biasing, Data Acquisition System Analog Output, Portable Test and Measurement.
Industrial Process Control / PLC Analog Output
The AD5064BRUZ-REEL7's four 16-bit DAC channels and 4.5-5.5 V supply are tailored to industrial PLC analog output modules that drive 0-10 V or 4-20 mA signals to valves, motor drives, and process instrumentation. Its ±1 LSB INL and DNL deliver true 16-bit monotonic output, ensuring precise loop control without missing codes, while the rail-to-rail buffered outputs swing within millivolts of the supply rails for maximum dynamic range on each of four simultaneous channels. The integrated power-on reset to zero scale guarantees a known safe state at PLC power-up before SPI writes arrive, and the hardware LDAC pin allows simultaneous update of all four outputs for synchronized multi-axis control. Compared to discrete single-channel DACs, the AD5064 reduces BOM count by 4x and simplifies SPI routing.
Recommended
Precision Programmable Voltage / Current Source
The AD5064BRUZ-REEL7 is well suited to precision programmable voltage sources used in laboratory instrumentation, ATE, and calibration equipment. Its 16-bit resolution provides 65,536 discrete voltage steps across the output range, allowing sub-1 mV adjustment with a 5 V full-scale output, while the on-chip output buffer delivers low-impedance drive for load currents up to several milliamps. The individual per-channel reference pins allow each of the four DACs to be set to a different output span (for example ±10 V, 0-5 V, 4-2 I with external transconductance stage), enabling one IC to replace multiple discrete DACs in a single calibration module. The hardware CLR function provides fast emergency shutdown, critical in test fixtures where DUT protection is required.
Recommended
Digital Gain and Offset Adjustment
In signal-chain designs the AD5064BRUZ-REEL7 serves as a digitally controlled gain and offset trim element for analog front ends, replacing mechanical potentiometers with solid-state, software-controllable adjustment. With 16-bit resolution, gain steps below 0.002% of full scale are achievable, eliminating the drift, vibration sensitivity, and manual rework associated with mechanical trims in instrumentation amplifiers, transducer conditioners, and AFE reference paths. The four channels allow independent trimming of multiple stages (for example, gain, offset, common-mode bias, and reference) within a single IC, while the SPI interface enables factory or in-field calibration without mechanical access. The TSSOP-16 footprint keeps the trim DAC compact next to the signal-path ICs.
Recommended
Optical Control and Laser Biasing
Optical modules, laser diode drivers, and fiber-optic transceivers benefit from the AD5064BRUZ-REEL7's low-noise, 16-bit DAC outputs for setting laser bias currents and modulation thresholds. The four independent channels allow separate control of bias, modulation amplitude, temperature compensation, and APC (automatic power control) setpoints, while the per-channel reference pins let each DAC use a different reference optimized for its control loop. The rail-to-rail buffered output and 5 V supply handle typical laser-driver control ranges directly without additional amplification. Low DAC glitch impulse and the per-channel power-down modes help minimize transient disturbances during channel laser enable sequencing.
Recommended
Data Acquisition System Analog Output
In data acquisition systems the AD5064BRUZ-REEL7 functions as the analog output stage, providing stimulus signals to DUTs, excitation channels for bridge sensors, or analog reconstruction outputs for waveform playback. Four 16-bit channels deliver simultaneous, synchronized stimuli via the hardware LDAC pin, with monotonic 16-bit performance across all channels at update rates up to the SPI bus speed (typically 1 MSPS aggregate). The power-on reset to zero scale prevents erroneous output voltages from reaching the DUT at system startup, while per-channel power-down reduces consumption to microamps in portable DAQ instruments. The SPI daisy-chain feature allows expanding beyond four channels by cascading additional AD5064s on the same bus.
Recommended
Portable Test and Measurement
Battery-powered portable test equipment benefits from the AD5064BRUZ-REEL7's nanoDAC low-power architecture, which delivers quad-channel 16-bit performance at supply currents compatible with multi-cell Li-ion powered instruments. The 4.5-5.5 V supply range accommodates direct USB or single-cell Li-ion plus boost operation, and the per-channel power-down modes drop supply current to microampere levels when channels are idle, extending battery runtime in handheld DMMs, field calibrators, and portable signal generators. The 16-TSSOP footprint enables compact PCB layouts inside handheld enclosures, and the industrial -40 °C to +125 °C temperature range supports outdoor field use where consumer-grade parts would fail.
Recommended
Recommended Products Summary
Engineering reference data for AD5064BRUZ-REEL7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD5064BRUZ-1REEL7 | AD5044BRUZ-REEL7 | AD5024BRUZ-REEL7 | AD5064ARUZ-1REEL7 |
|---|---|---|---|---|---|
| Package | 16-TSSOP (RU) | 16-TSSOP (RU) - same | 16-TSSOP (RU) - same | 16-TSSOP (RU) - same | 16-TSSOP (RU) - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 16 bits | 16 bits | 14 bits | 12 bits | 16 bits |
| Channels | 4 | 4 | 4 | 4 | 4 |
| INL (max) | ±1 LSB | ±1 LSB | ±1 LSB | ±1 LSB | ±2 LSB |
| DNL (max) | ±1 LSB | ±1 LSB | ±1 LSB | ±1 LSB | ±2 LSB |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Power-On Reset | Zero scale | Midscale | Zero scale | Zero scale | Midscale |
| Interface | SPI (50 MHz, SDO) | SPI (50 MHz, SDO) | SPI (50 MHz, SDO) | SPI (50 MHz, SDO) | SPI (50 MHz, SDO) |
| Operating Temperature | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C |
Key Differentiators
- Pin-compatible performance upgrade to legacy AD5666 (vs AD5666)
- 16-bit true accuracy (B-grade ±1 LSB INL/DNL) (vs AD5064ARUZ-1REEL7 (A-grade))
- Quad-channel integration with per-channel references (vs AD5044BRUZ-REEL7 (14-bit version))
Design Notes
Place the reference-input bypass capacitors (typically 0.1 µF ceramic in parallel with 10 µF tantalum or polymer) as close as possible to each REFA/REFB/REFC/REFD pin, with a short, low-inductance trace to the ground plane. Reference-pin impedance directly affects DAC accuracy and channel-to-channel mismatch, so do not share reference capacitors between channels. Keep digital SPI traces (SCLK, SYNC, DIN, SDO, LDAC, CLR) routed away from the analog VOUT and REF traces to minimize digital-to-analog coupling.
Decouple VDD with a 0.1 µF X7R ceramic capacitor placed within 2 mm of pin 1, supplemented with a 10 µF bulk capacitor on the same node. The AD5064 draws very low supply current (typically a few mA across all four channels at 5 V), so a low-noise LDO such as the ADP7104 or a filtered 5 V rail is recommended rather than direct connection to a noisy switching converter. Per-channel power-down modes reduce consumption to microampere levels when channels are idle, useful for portable battery-powered applications.
The 16-TSSOP (RU) package exposes a thermal pad on pin 17 that should be soldered to a ground-connected copper pour to improve thermal dissipation, even though the AD5064 dissipates only modest power. In four-channel full-scale drive applications the package dissipation can approach 100 mW, and a small copper pour (at least 100 mm²) on the top or bottom layer keeps junction temperature well below the 125 °C maximum. Avoid routing signal traces through the thermal pad region to maintain a contiguous thermal path.
Route SPI clock (SCLK) as a short, impedance-matched trace and place a small (33-100 Ω) source-termination resistor near the AD5064 SCLK pin if the bus length exceeds 50 mm to control ringing and reflections. Use the SDO pin only with a proper pull-up or active driver per the SPI mode, and verify timing margins against the SPI clock period. SDO daisy-chaining of multiple AD5064s requires SDO-to-DIN trace matching across cascaded parts; keep cascaded parts on the same SPI segment with matched trace lengths.
Do not leave any REFA/REFB/REFC/REFD pin floating - always tie each reference input to a stable reference or to VDD (for full-scale = VDD operation). Floating reference inputs cause unstable, drifting output voltages and excess output noise. Also confirm the CLR and LDAC pin polarities against your control logic - both are active-low per the family datasheet. Finally, ensure the SPI CPOL/CPHA mode matches your microcontroller configuration; the AD5064 uses SPI mode 1 (CPOL=0, CPHA=1) by default.
Compliance Information
RoHS compliant per Analog Devices product page. Lead-free matte-tin finish suitable for 260 °C reflow. Industrial temperature grade -40 °C to +125 °C. AEC-Q100 qualification status not applicable for this generic industrial grade.
