DAC80508ZYZFR - 16-Bit 8-Ch SPI DAC | Texas Instruments
MPN: DAC80508ZYZFR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.2 | $8.20 |
| 10 | $7.38 | $73.80 |
| 100 | $6.55 | $655.00 |
| 500 | $5.9 | $2,950.00 |
| 1,000 | $5.35 | $5,350.00 |
DAC80508ZYZFR Overview
A digital-to-analog converter (DAC) is a data-converter IC that transforms digital binary codes into analog output voltages, bridging digital processors and the analog world. Within the data-acquisition hierarchy, DACs sit alongside ADCs as core mixed-signal building blocks, and the DAC80508 belongs to the pin-compatible DACx0508 family of 16-, 14-, and 12-bit octal DACs used across industrial and instrumentation systems.
Key features include a precision internal 2.5-V reference with 5-ppm/C drift, eliminating external references in most designs, and user-selectable gain configurations delivering full-scale outputs of 1.25 V, 2.5 V, and 5 V. The SPI interface supports data rates up to 50 MHz with daisy-chaining, and an LDAC function enables simultaneous updates of all eight outputs. A power-on reset guarantees zero-scale or mid-scale outputs at startup.
Technically, the DAC80508 uses a resistor-string architecture with a per-channel output buffer amplifier, providing excellent linearity, low glitch energy, and the ability to drive capacitive loads directly. Each channel is independently powered down for energy savings in battery-operated instruments.
Typical applications include precision test and measurement equipment, industrial process control, motor control systems, and portable instrumentation. Low power consumption and the tiny WCSP footprint suit battery-powered and space-constrained designs.
For best performance, decouple VDD with 0.1-uF and 10-uF capacitors close to the pin, bypass the reference with 1 uF, and use a clean analog ground plane with separated digital and analog grounds to minimize noise coupling.
Drop-in alternatives for DAC80508ZYZFR — 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 DAC80508ZYZFR (same form factor and footprint) — differing in Architecture, Interface, Mounting Type, Output Type, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DAC70508ZYZFR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DAC60508ZYZFR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DAC80501ZYZFR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DAC70501ZYZFR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DAC60501ZYZFR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DAC80508ZYZFR Maximum Ratings & Electrical Characteristics
| Resolution | 16 bit |
| Number of Channels | 8 |
| Output Type | Voltage (buffered) |
| Interface | SPI, up to 50 MHz, daisy-chainable |
| Supply Voltage | 2.7 V to 5.5 V |
| Internal Reference | 2.5 V, 5 ppm/C |
| Gain Settings | 1.25 V, 2.5 V, 5 V full-scale (user selectable) |
| Architecture | Resistor string with output buffer |
| Power-On Reset | Zero-scale or mid-scale selectable |
| Channel Power-Down | Independent per-channel |
| LDAC Function | Simultaneous update of all 8 channels |
| Operating Temperature | -40C to +125C |
| Package | 16-DSBGA (YZF) 2.0 mm x 2.0 mm |
| Mounting Type | Surface Mount (WCSP) |
| RoHS Status | Compliant |
| Family | DACx0508 pin-compatible 16/14/12-bit family |
DAC80508ZYZFR Pin Configuration
| Pin A1 | VDD — Power supply, 2.7 V to 5.5 V |
| Pin B1 | GND — Ground |
| Pin C1 | VOUT0 — DAC channel 0 buffered output |
| Pin D1 | VOUT1 — DAC channel 1 buffered output |
| Pin A2 | VOUT2 — DAC channel 2 buffered output |
| Pin B2 | VOUT3 — DAC channel 3 buffered output |
| Pin C2 | VOUT4 — DAC channel 4 buffered output |
| Pin D2 | VOUT5 — DAC channel 5 buffered output |
| Pin A3 | VOUT6 — DAC channel 6 buffered output |
| Pin B3 | VOUT7 — DAC channel 7 buffered output |
| Pin C3 | SCLK — SPI serial clock, up to 50 MHz |
| Pin D3 | DIN — SPI serial data input |
| Pin A4 | SYNC — SPI frame sync / chip select |
| Pin B4 | LDAC — Load DAC, simultaneous update of all channels |
| Pin C4 | ALARM — Reference alarm indicator output |
| Pin D4 | CAP — Internal reference bypass capacitor pin |
Typical Applications
DAC80508ZYZFR is suitable for 6 applications: Test and Measurement Equipment, Industrial Process Control, Motor Control Systems, Portable and Battery-Powered Instruments, Optical and Sensor Bias Networks, Communications and RF Module Calibration.
Test and Measurement Equipment
The DAC80508ZYZFR fits programmable instrumentation such as bench supplies, signal generators, and automated test boards where eight independently controlled analog levels must fit in minimal board area. The true 16-bit resolution with the 2.5-V, 5-ppm/C internal reference provides drift-stable setpoints without an external reference, and the LDAC function updates all channels simultaneously to avoid skew in multi-point stimulus. At 2.0 mm x 2.0 mm, it enables dense multi-channel cards; its 50-MHz SPI keeps waveform update latency low when driven from an FPGA or MCU.
Recommended
Industrial Process Control
In PLC analog output modules and process transmitters, the DAC80508ZYZFR converts controller setpoints into 0-5 V loop signals with 16-bit granularity. The wide -40C to +125C operating range and internal reference with 5-ppm/C drift maintain calibration across industrial temperature extremes, while per-channel power-down saves energy in partially used cards. Its SPI interface with daisy-chaining lets several octal DACs share one MCU SPI port, reducing isolation channel count in electrically noisy factory environments.
Recommended
Motor Control Systems
The DAC80508ZYZFR generates torque, speed, and position reference signals in servo drives and multi-axis motor controllers. The LDAC pin enables glitch-free simultaneous update of all eight outputs, critical for phase-coherent multi-axis motion, and the 50-MHz SPI supports fast refresh from TI C2000-class MCUs. The buffered voltage outputs drive controller input networks directly, and the power-on reset guarantees outputs at zero-scale or mid-scale at startup for a defined drive state.
Recommended
Portable and Battery-Powered Instruments
With a 2.7-V to 5.5-V single supply, low operating power, and independent per-channel power-down, the DAC80508ZYZFR suits handheld meters, portable data loggers, and battery-powered field instruments. Channels not in use can be powered down to extend battery life, and the 2.0 mm x 2.0 mm WCSP frees board area for batteries and wireless modules. The integrated 2.5-V reference removes the quiescent cost of an external reference IC, further reducing total power draw.
Recommended
Optical and Sensor Bias Networks
Precision bias generation for photodiodes, MEMS, and laser drivers benefits from the DAC80508ZYZFR's 16-bit monotonic output and low-noise buffered outputs. Eight channels tune multiple bias points from one IC, and the 5-ppm/C reference keeps bias levels stable over temperature, which is essential for optical power calibration. When paired with a clean low-noise amplifier stage, the full-scale gain options (1.25 V, 2.5 V, 5 V) let designers match bias span to the transducer range.
Recommended
Communications and RF Module Calibration
The DAC80508ZYZFR supplies calibration and control voltages for VCO tuning, PA bias, and variable gain amplifiers in radio modules. The tiny WCSP footprint fits inside RF module shields where board area is scarce, the 5-ppm/C internal reference holds tuning voltages stable, and the SPI daisy-chain allows multiple DACs to share a single isolated control bus. Buffered outputs drive varactor and bias networks directly with 16-bit control granularity.
Recommended
Recommended Products Summary
Engineering reference data for DAC80508ZYZFR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DAC70508ZYZFR | DAC60508ZYZFR | DAC80501ZYZFR |
|---|---|---|---|---|
| Package | 16-DSBGA (YZF) 2.0 x 2.0 mm | 16-DSBGA (YZF) - same | 16-DSBGA (YZF) - same | 16-DSBGA (YZF) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 16 bit | 14 bit | 12 bit | 16 bit |
| Channels | 8 | 8 | 8 | 1 |
| Internal Reference | 2.5 V, 5 ppm/C | 2.5 V, 5 ppm/C | 2.5 V, 5 ppm/C | 2.5 V, 5 ppm/C |
| SPI Interface | 50 MHz, daisy-chain | 50 MHz, daisy-chain | 50 MHz, daisy-chain | 50 MHz |
| LDAC Simultaneous Update | Yes (8 channels) | Yes (8 channels) | Yes (8 channels) | Yes (1 channel) |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
Key Differentiators
- True 16-bit resolution with on-chip precision reference (vs DAC60508ZYZFR)
- 8 independently powerable channels in 2.0 mm x 2.0 mm (vs DAC80501ZYZFR)
- Board-area advantage over VQFN-packaged octal DACs (vs DAC80508SRGER)
Design Notes
The 16-DSBGA (YZF) WCSP uses a fine ball pitch requiring via-in-pad or microvia fanout. Place 0.1-uF and 10-uF decoupling capacitors for VDD within 2 mm of the supply ball, and bypass the CAP/reference pin with 1 uF per the TI datasheet typical application circuit. Verify the solder reflow profile for WCSP before production; hand rework is impractical at this pitch.
Use separate analog and digital ground returns. Route SPI traces (SCLK up to 50 MHz) away from the VOUT lines and reference bypass capacitor to prevent digital coupling onto analog outputs. A series 22-33 ohm resistor on SCLK at the driver reduces ringing on short traces without violating the 50-MHz timing budget.
Configure the power-on reset output state (zero-scale vs mid-scale) to match the safety requirements of your actuator or bias network before tapeout. Do not leave the LDAC pin floating if simultaneous updates are required; tie or drive it per the datasheet. Also confirm supply sequencing when VDD is shared with other rails to avoid undefined ALARM behavior at startup.
Compliance Information
RoHS compliant per TI product page and DigiKey listing. AEC-Q100 qualification not stated for this device.
