Analog Devices Inc. AD5663BRMZ-1REEL7

Overview

AD5663BRMZ-1REEL7 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 serial interface-used in precision programmable voltage sources and digital offset/gain calibration.

For engineers reviewing the AD5663BRMZ-1REEL7 datasheet, AD5663BRMZ-1REEL7 pinout, AD5663BRMZ-1REEL7 application, or AD5663BRMZ-1REEL7 equivalent, this page delivers verified specifications, package mapping to 10-lead MSOP, functional pin roles, real-world use cases, and validated alternative options for industrial and portable instrumentation designs.

Technical Context

The AD5663BRMZ-1REEL7 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-based register writes (input/DAC), power-down control, and synchronous updates via LDAC.

Power-on reset defaults output to zero scale (confirmed for BRMZ-1 variant), and per-channel software/hardware power-down reduces current to 0.48 μA at 5 V. Reference input requires external VREF (0.75 V to VDD) with 26 kΩ impedance and 200 μA max draw.

Key Specifications

Pinout & Package

AD5663BRMZ-1REEL7 is packaged in a 10-lead MSOP (3 mm × 3 mm) with exposed pad recommended for grounding. Pin functions are electrically validated and match the official Analog Devices pinout for this variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5663BRMZ-2REEL7, AD5663BRMZ-1REEL7 guarantees zero-scale power-up-critical for systems requiring known initial state-and differs only in reset behavior, not performance or interface. Against AD5662BRMZ-1REEL7, it adds full dual-channel functionality at identical per-channel specs but increases layout and firmware overhead.

Availability

AD5663BRMZ-1REEL7 is available at Aetrix Electronics and suitable for process control, portable instrumentation, and digital calibration systems requiring stable component supply, long-term manufacturability, and guaranteed industrial temperature operation (−40°C to +105°C).

Supply support for AD5663BRMZ-1REEL7 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 AD5663BRMZ-1REEL7 belongs to the nanoDAC® family-designed specifically for precision, low-power, and space-constrained applications including portable test equipment and industrial automation modules.

FAQ

What is the power-on reset behavior of the AD5663BRMZ-1REEL7?

The AD5663BRMZ-1REEL7 powers up to zero scale (0 V output) on both VOUTA and VOUTB, as confirmed by the "-1" suffix in its part number and documented in the General Description section of the Rev. A datasheet. This behavior is enforced by internal power-on reset circuitry and remains active until the first valid write sequence completes. The AD5663BRMZ-1REEL7 does not require external reset sequencing to achieve deterministic startup.

Does the AD5663BRMZ-1REEL7 include an internal reference voltage?

No, the AD5663BRMZ-1REEL7 requires an external reference voltage applied to the VREF pin. It accepts 0.75 V to VDD, with 26 kΩ input impedance and up to 200 μA draw at 5.5 V. Unlike the AD5663R series, the AD5663BRMZ-1REEL7 has no integrated reference-this enables greater flexibility in reference selection and noise optimization but mandates external reference design.

What is the maximum capacitive load the AD5663BRMZ-1REEL7 can drive stably?

The AD5663BRMZ-1REEL7 drives up to 2 nF capacitively when unloaded (RL = ∞), and up to 10 nF when driving a 2 kΩ resistive load to ground, as specified in Table 2 under "Capacitive Load Stability." Exceeding these values may cause ringing or instability; for heavier loads, external buffering or RC isolation is recommended per Figure 23 in the datasheet.

How does the LDAC pin function in the AD5663BRMZ-1REEL7?

The LDAC pin on the AD5663BRMZ-1REEL7 is a hardware-controlled latch enabling synchronous update of DAC outputs. When pulsed low, it transfers data from input registers to DAC registers-updating VOUTA and VOUTB simultaneously. It can also be tied permanently low for immediate register-to-output transfer. This function is distinct from software LDAC commands (C2–C0 = 010), and the AD5663BRMZ-1REEL7 supports both modes.

Is the AD5663BRMZ-1REEL7 pin-compatible with other nanoDAC® devices?

The AD5663BRMZ-1REEL7 shares the same 10-lead MSOP footprint and pinout with AD5662 (single-channel) and AD5663 variants (e.g., -2, -3), but is not pin-compatible with AD5623/AD5643R due to different internal reference routing and VREF pin usage. Pin compatibility is limited to the AD566x-BRMZ family; substitution requires verification of reset behavior, reference configuration, and software command structure.