Data Sheet

AD3541R

Single Channel, 12-/16-Bit, 16 MUPS, Multispan, Multi-IO SPI DAC

Rev. A

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FEATURES

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12-/16-bit resolution

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16 MUPS single channel rate in fast mode

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11 MUPS single channel rate in precision mode

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78 ns small signal settling time to 0.1% accuracy

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100 ns large signal settling time to 0.1% accuracy

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Ultrasmall glitch: <50 pV×s

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Ultralow latency: 5 ns

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THD: −105 dB at 1 kHz for AD3541R-16 and −95 dB at 1 kHz for

AD3541R-12

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5 selectable output voltage ranges

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1.2 V and 1.8 V logic level compatible

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Single (classic) and dual SPI modes

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Multiple error detectors, both analog and digital domains

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2.5 V internal voltage reference, 10 ppm/°C maximum TC

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Small package: 4 mm × 4 mm LFCSP

APPLICATIONS

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Instrumentation

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Hardware in the loop

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Process control equipment

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Medical devices

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Automated test equipment

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Data acquisition system

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Programmable voltage sources

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Optical communications

GENERAL DESCRIPTION

The AD3541R is a low drift, single channel, ultra-fast, 12-/16-bit ac-

curacy, voltage output digital-to-analog converter (DAC) that can be

configured in multiple voltage span ranges. The AD3541R operates

with a fixed 2.5 V reference.

Each DAC incorporates three drift compensating feedback resistors

for the internal transimpedance amplifier (TIA) that scales the

output voltage. The device has five preconfigured output voltage

ranges: 0 V to 2.5 V, 0 V to 5 V, 0 V to 10 V, −5 V to +5 V, and −2.5

V to +7.5 V.

The AD3541RBCPZ16 (hereafter referred to as AD3541R-16) can

operate in fast mode for maximum speed or precision mode for

maximum accuracy. The AD3541RBCPZ12 (hereafter referred to as

AD3541R-12) has a single operation mode.

The serial peripheral interface (SPI) can be configured in dual SPI

and single SPI (classic SPI) mode with single date rate (SDR) or

double data rate (DDR), with logical levels from 1.2 V to 1.8 V.

The AD3541R is specified over the extended industrial temperature

range (–40°C to +105°C).

Table 1. Related Devices

Part No.

Description

LTC6655

0.25 ppm noise, low drift precision reference

ADR4525

Ultralow noise, high accuracy, 2.5 V voltage reference

AD3552R

Dual channel, 16-bit, 33 MUPS, multispan, multi-IO SPI DAC

AD3551R

Single channel, 16-bit, 33 MUPS, multispan, multi-IO SPI DAC

AD3542R

Single channel, 12-/16-bit, 16 MUPS, multispan, multi-IO SPI DAC

FUNCTIONAL BLOCK DIAGRAM

Figure 1. Functional Block Diagram

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