Analog Devices Inc. AD5304BCPZ-REEL7

Overview

AD5304BCPZ-REEL7 from Analog Devices is an 8-bit quad buffered voltage-output DAC in a 10-lead LFCSP package, operating from 2.5 V to 5.5 V with 500 μA typical supply current at 3 V, ±0.625 LSB INL (B version), and rail-to-rail output swing - used for precision digital gain/offset adjustment in portable instrumentation and industrial process control.

For engineers reviewing the AD5304BCPZ-REEL7 datasheet, AD5304BCPZ-REEL7 pinout, AD5304BCPZ-REEL7 application, or AD5304BCPZ-REEL7 equivalent, key selection considerations include guaranteed monotonicity, simultaneous LDAC update, 3-wire SPI/QSPI/MICROWIRE compatibility, low 80 nA power-down current at 3 V, and −40°C to +105°C automotive-qualified operation.

Technical Context

The AD5304BCPZ-REEL7 implements four independent resistor-string DACs sharing a single REFIN pin, each followed by a rail-to-rail output buffer amplifier with 0.7 V/μs slew rate and 6 μs half-scale settling time. Its double-buffered input logic supports asynchronous updates and simultaneous output latching via LDAC.

It features a 16-bit serial interface with SYNC frame synchronization, operates up to 30 MHz SCLK, and includes internal power-on reset forcing all outputs to 0 V until first valid write. Power-down mode reduces IDD to 80 nA at 3 V while maintaining high-impedance outputs.

Key Specifications

Pinout & Package

AD5304BCPZ-REEL7 is housed in a 10-lead LFCSP (Lead Frame Chip Scale Package) with exposed paddle (GND), optimized for thermal performance and board space efficiency in compact designs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad voltage-output DAC applications.

Compared with AD5314BCPZ-REEL7, the AD5304BCPZ-REEL7 trades resolution for lower cost and reduced firmware overhead; versus MAX5216ETE+, it offers superior update coordination, lower power, and broader interface compatibility at the expense of absolute bit count.

Availability

AD5304BCPZ-REEL7 is available at Aetrix Electronics and suitable for portable instrumentation, industrial process controls, and automotive sensor calibration requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant performance.

Supply support for AD5304BCPZ-REEL7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The AD5304/AD5314/AD5324 family was designed specifically for space-constrained, low-power applications demanding multiple precision voltage outputs - including portable medical devices, automotive subsystems, and industrial automation modules.

FAQ

What is the reference input voltage range for the AD5304BCPZ-REEL7?

The AD5304BCPZ-REEL7 accepts a reference input voltage (REFIN) from 0.25 V to VDD. This wide range allows direct use of low-voltage references or connection to the supply rail itself. Input impedance is 45 kΩ in normal operation, and the pin is unbuffered - so external buffering (e.g., REF192) is recommended for noise-sensitive or high-precision applications. The AD5304BCPZ-REEL7 does not regulate or condition the reference; its output scaling is strictly proportional to VREF.

Does the AD5304BCPZ-REEL7 support simultaneous output updates across all four channels?

Yes, the AD5304BCPZ-REEL7 supports simultaneous output updates using its LDAC (Load DAC) function. When LDAC is asserted (low), all four DAC outputs update in unison from their respective DAC registers. This eliminates transient mismatches during multi-channel calibration or control sequences. The AD5304BCPZ-REEL7's double-buffered architecture allows new data to be loaded into input registers asynchronously while holding previous outputs stable until LDAC triggers the update.

What is the power consumption of the AD5304BCPZ-REEL7 in power-down mode?

In power-down mode, the AD5304BCPZ-REEL7 draws just 80 nA at 3 V and 200 nA at 5 V. During this state, all DAC outputs enter high-impedance mode, and internal circuitry is disabled except for wake-up logic. Recovery time from power-down is 2.5 μs at 5 V and 5 μs at 3 V. This ultra-low quiescent current makes the AD5304BCPZ-REEL7 ideal for battery-backed systems where extended sleep intervals are required without compromising startup responsiveness.

Is the AD5304BCPZ-REEL7 pin-compatible with other members of the AD5304/AD5314/AD5324 family?

Yes, the AD5304BCPZ-REEL7 is fully pin-compatible with AD5314BCPZ-REEL7 and AD5324BCPZ-REEL7 in both 10-lead MSOP and 10-lead LFCSP packages. All share identical pinouts, supply ranges, interface timing, and functional registers. The only differences are resolution (8-/10-/12-bit), INL/DNL specifications, and internal DAC core design - enabling drop-in upgrades or downgrades based on precision and cost requirements without PCB redesign.

What serial interface standards does the AD5304BCPZ-REEL7 support?

The AD5304BCPZ-REEL7 supports SPI®, QSPI™, MICROWIRE™, and DSP-compatible 3-wire serial interfaces. It uses a 16-bit frame with falling-edge clocking on SCLK, active-low SYNC framing, and MSB-first DIN data. No mode configuration is required - compatibility is achieved through timing adherence rather than register settings. The interface operates up to 30 MHz, and input buffers auto-power-down after each write to minimize leakage, making the AD5304BCPZ-REEL7 interoperable with most microcontrollers and FPGAs without protocol translation.