Analog Devices Inc. AD5663BCPZ-REEL7

Overview

AD5663BCPZ-REEL7 from Analog Devices is a dual 16-bit buffered voltage-output DAC operating from 2.7 V to 5.5 V, delivering rail-to-rail output swing, ±12 LSB relative accuracy, and 7 μs settling time. It features per-channel power-down, hardware LDAC/CLR controls, and a 50 MHz SPI-compatible 3-wire serial interface - used in precision programmable voltage sources and digital offset calibration.

For engineers reviewing the AD5663BCPZ-REEL7 datasheet, AD5663BCPZ-REEL7 pinout, AD5663BCPZ-REEL7 application, or AD5663BCPZ-REEL7 equivalent, key selection considerations include guaranteed monotonicity, external reference dependency, 10-lead LFCSP_WD package footprint, and dual-channel synchronization via LDAC for coordinated analog output updates.

Technical Context

The AD5663BCPZ-REEL7 implements a resistor string DAC architecture with on-chip rail-to-rail output amplifiers per channel, enabling full-scale output from 0 V to VDD. Its 24-bit serial interface supports command decoding (write/update/power-down/reset) and DAC addressing (A2–A0), with SYNC acting as frame sync and LDAC enabling simultaneous DAC register updates.

Power management includes software-selectable per-channel power-down modes reducing IDD to 0.48 μA at 5 V, and a power-on reset that defaults outputs to zero scale. Reference input requires external VREF (0.75 V to VDD) with 26 kΩ input impedance and 170–200 μA reference current draw.

Key Specifications

Pinout & Package

AD5663BCPZ-REEL7 is packaged in a 10-lead, 3 mm × 3 mm LFCSP_WD (lead-frame chip-scale package) with exposed pad recommended to be grounded for thermal and noise performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 16-bit DAC applications.

Compared with AD5663BCPZ-REEL7, the AD5663BRMZ-REEL7 offers identical electrical performance in a larger, thermally less efficient package, while the AD5663RBCPZ-REEL7 integrates a precision reference at the cost of higher quiescent current - making the base AD5663BCPZ-REEL7 optimal for externally referenced, thermally dense, low-power dual-DAC systems.

Availability

AD5663BCPZ-REEL7 is available at Aetrix Electronics and suitable for process control, portable instrumentation, and data acquisition systems requiring stable component supply, long-term manufacturability, and guaranteed parametric compliance across −40°C to +105°C.

Supply support for AD5663BCPZ-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 AD5663BCPZ-REEL7 belongs to the nanoDAC® family - designed specifically for space-constrained, low-power applications demanding high-resolution analog output control with minimal external components.

FAQ

What is the reference voltage requirement for AD5663BCPZ-REEL7?

The AD5663BCPZ-REEL7 requires an external reference voltage applied to the VREF pin, ranging from 0.75 V to VDD. It draws 170–200 μA from the reference source, and its full-scale output is directly proportional to VREF. The AD5663BCPZ-REEL7 does not include an internal reference; using a stable, low-noise reference such as the ADR4525 is recommended for precision applications.

Does AD5663BCPZ-REEL7 support simultaneous update of both DAC outputs?

Yes, AD5663BCPZ-REEL7 supports simultaneous update via the LDAC pin. When LDAC is pulsed low, both DAC A and DAC B outputs update concurrently if their respective input registers contain new data. This hardware-synchronized update eliminates inter-channel timing skew - essential for applications like differential signal generation or matched bias control where phase alignment is critical.

What is the power-up behavior of AD5663BCPZ-REEL7?

AD5663BCPZ-REEL7 incorporates a power-on reset circuit that forces both DAC outputs to zero scale (0 V) upon power application and holds them there until the first valid write occurs. This behavior is fixed for the AD5663BCPZ-REEL7 variant - unlike the AD5663BRMZ-1, which powers up to midscale. The zero-scale default ensures safe startup in systems where unintended output voltage could damage downstream circuitry.

Can AD5663BCPZ-REEL7 operate from a 3.3 V supply?

Yes, AD5663BCPZ-REEL7 is fully specified for operation from 2.7 V to 5.5 V, including 3.3 V. At 3.3 V, typical supply current is 200 μA in normal mode and 0.2 μA in power-down mode. Output voltage range becomes 0 V to 3.3 V, and reference input must be ≥0.75 V and ≤3.3 V. All AC and DC specifications - including 7 μs settling and ±12 LSB linearity - are guaranteed across this supply range.

What package type is used for AD5663BCPZ-REEL7?

AD5663BCPZ-REEL7 uses a 10-lead, 3 mm × 3 mm LFCSP_WD (lead-frame chip-scale package) with an exposed thermal pad. The "BCPZ" suffix explicitly denotes this LFCSP variant. The exposed pad is internally floating and must be soldered to a PCB ground plane for optimal thermal dissipation (θJA = 61°C/W) and reduced noise coupling - a key distinction from the MSOP-packaged AD5663BRMZ-REEL7.