Analog Devices Inc. AD5453WBCPZ-RL

Overview

AD5453WBCPZ-RL from Analog Devices is a 14-bit current-output multiplying DAC with 12 MHz reference bandwidth, ±10 V reference input range, and 50 MHz serial interface. It operates from 2.5 V to 5.5 V, delivers <0.4 μA typical supply current, and is qualified for automotive applications (−40°C to +125°C). It enables precision programmable gain/attenuation in ultrasound and composite video signal chains.

For engineers reviewing the AD5453WBCPZ-RL datasheet, AD5453WBCPZ-RL pinout, AD5453WBCPZ-RL application, or AD5453WBCPZ-RL equivalent, key selection criteria include guaranteed monotonicity, 4-quadrant multiplication capability, RFB feedback resistor integration, TSOT/MSOP/LFCSP package options, and compatibility with SPI/QSPI/MICROWIRE interfaces.

Technical Context

The AD5453WBCPZ-RL implements an R-2R ladder architecture with double-buffered 3-wire serial interface and internal power-on reset with brownout detection. Its 14-bit resolution supports precise analog processing where full-scale output current scales linearly with external reference voltage (±10 V).

It uses a CMOS submicron process enabling 12 MHz multiplying bandwidth and low digital feedthrough (0.5 nV-s). The integrated RFB resistor (7–11 kΩ, −50 ppm/°C TC) provides temperature-tracked voltage output when paired with an external I-to-V amplifier.

Key Specifications

Pinout & Package

AD5453WBCPZ-RL is packaged in an 8-lead LFCSP (Lead Frame Chip Scale Package) with exposed pad. The exposed pad must be connected to GND for thermal and electrical performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multiplying DAC applications.

Compared with AD5452WBCPZ-RL, the AD5453WBCPZ-RL adds 2 bits of resolution and tighter gain error (±2.5 LSB vs. ±0.5 LSB), enabling higher-accuracy closed-loop control; versus MAX5316ETE+, it trades integrated voltage output for superior multiplying fidelity and wider reference range, better serving analog multiplier topologies.

Availability

AD5453WBCPZ-RL is available at Aetrix Electronics and suitable for ultrasound beamforming, programmable gain amplifiers, composite video processing, and automotive sensor signal conditioning requiring stable component supply across extended temperature ranges.

Supply support for AD5453WBCPZ-RL 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 AD5450/AD5451/AD5452/AD5453 family was designed for high-bandwidth, precision multiplying DAC applications in portable instrumentation, medical imaging, and automotive systems where low power, small size, and wide reference range are critical.

FAQ

What is the maximum reference voltage range supported by the AD5453WBCPZ-RL?

The AD5453WBCPZ-RL supports a reference input range of ±10 V, enabling true 4-quadrant multiplication without external level-shifting circuitry. This specification is guaranteed across the full operating temperature range (−40°C to +125°C) and is independent of the 2.5 V to 5.5 V VDD supply. The device maintains specified INL and gain error performance within this range, as validated in Figures 14–15 and Table 1 of the Rev. I datasheet.

Does the AD5453WBCPZ-RL require an external op-amp to generate a voltage output?

Yes, the AD5453WBCPZ-RL is a current-output DAC and requires an external current-to-voltage amplifier to produce a voltage output. However, it integrates an RFB feedback resistor (7–11 kΩ) that connects directly to the op-amp output, eliminating the need for an external precision resistor and improving temperature tracking. The AD5453WBCPZ-RL datasheet recommends op-amps such as the AD8038 for optimal settling and bandwidth performance.

Is the AD5453WBCPZ-RL pin-compatible with other members of the AD545x family?

The AD5453WBCPZ-RL shares identical pinouts with the AD5452 in MSOP and LFCSP packages, and with the AD5450/AD5451 in TSOT packages only for the 8-lead variants. Pin compatibility is explicitly confirmed in Figures 3–5 and Table 4 of the Rev. I datasheet. However, firmware must accommodate differing bit widths: AD5453WBCPZ-RL expects 14 data bits (plus 2 control bits), while AD5452 uses 12, AD5451 uses 10, and AD5450 uses 8.

What is the guaranteed monotonicity behavior of the AD5453WBCPZ-RL across temperature?

The AD5453WBCPZ-RL is guaranteed monotonic across its full operating temperature range of −40°C to +125°C. This is confirmed in Table 1 under "Differential Nonlinearity" (−1/+2 LSB), which ensures no code-to-code output reversals. Monotonicity is maintained regardless of reference voltage magnitude (±2 V to ±10 V) or supply voltage (2.5 V to 5.5 V), as verified in Figure 13 (DNL vs. Code) and the "Guaranteed monotonic" row in the static performance table.

How does the AD5453WBCPZ-RL handle power-up initialization?

The AD5453WBCPZ-RL incorporates an internal power-on reset with brownout detection. Upon power-up or supply voltage drop below threshold, the internal shift register and DAC latch are automatically loaded with zeros, forcing the output to zero scale. This behavior is documented in the "General Description" section and ensures predictable, glitch-free startup without requiring external reset circuitry or firmware initialization sequences.