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AD5204BRUZ10

AD5204BRUZ10 - 10kΩ 4-Ch 256-Tap SPI Digital Potentiometer | ADI

The Analog Devices AD5204BRUZ10 is a 4-channel, 256-position digitally controlled variable resistor (VR) housed in a 24-pin TSSOP package, with an end-to-end resistance of 10 kΩ and a 3-wire SPI-compatible serial interface. Each channel provides a fixed resistor with a wiper contact that taps the resistor at one of 256 positions, emulating a mechanical potentiometer but with no moving parts, no contact wear, and remote digital control. The nominal resistance tolerance is ±30%, supply voltage range is 2.7 V to 5.5 V (single) or ±2.3 V to ±2.7 V (dual), and the operating temperature range spans −40 °C to +85 °C. A digital potentiometer (digipot) is a solid-state integrated circuit that replaces a mechanical potentiometer with a resistor ladder and CMOS transmission-gate wiper switches. It belongs to the broader category of programmable analog components, alongside DACs, voltage references, and programmable gain amplifiers, and sits within the data-converter / signal-conditioning slice of mixed-signal ICs. By accepting serial commands from an MCU or FPGA, the digipot lets a host processor perform dynamic system calibration, gain adjustment, or set-point tuning that would otherwise require a human turning a trimpot. Key features of the AD5204BRUZ10 include four independently programmable channels, a low 5 µA typical wiper current consumption in shutdown, 35 ppm/°C typical resistor temperature coefficient, and a power-on reset that returns all wipers to midscale. The volatile wiper memory requires re-programming on each power-up cycle but simplifies software protocols. The TSSOP-24 footprint and SPI interface make it a drop-in upgrade path for designs migrating from legacy mechanical pots. Architecturally, the device uses a CMOS R-2R-style resistor ladder per channel with CMOS transmission gates as the wiper. The 256 tap points correspond to a nominal step size of 39 Ω for the 10 kΩ version. The end-to-end resistance tolerance of ±30% is typical of thin-film polysilicon resistor ladders and is generally acceptable for gain-setting and bias-adjustment roles where absolute calibration is performed in software. Typical applications include audio volume and tone control, programmable-gain instrumentation amplifiers, LCD display contrast and brightness adjustment, mechanical potentiometer replacement, and automated test equipment (ATE) calibration. The four-channel integration is particularly useful in multi-axis sensor conditioning or multi-channel audio front-ends where board real estate is constrained. When designing with this part, treat the digipot as a non-linear load on the upstream op-amp; the wiper switches introduce finite on-resistance (R_ON, ~50 Ω typical) that scales with code and can degrade CMRR/THD in precision paths. Decouple VDD/VSS with 0.1 µF ceramic capacitors placed within 5 mm of the supply pins. For AC signals, keep the signal amplitude well below the rail-to-rail wiper voltage window to avoid wiper-distortion artifacts. This page synthesizes distributor pricing, drop-in alternatives in the same TSSOP-24 package, and practical design notes not found in the manufacturer datasheet alone.

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AD5206BRUZ10

AD5206BRUZ10 - 6-Ch 10kΩ 256-Tap SPI Digital Potentiometer | ADI

The Analog Devices AD5206BRUZ10 is a 6-channel, 256-position digitally controlled variable resistor (digital potentiometer or DigiPot) with 10 kΩ end-to-end resistance per channel, communicating over a 3-wire SPI-compatible serial interface and housed in a 24-pin TSSOP (RU-24) surface-mount package. Each of the six independent RDAC channels contains a fixed resistor string with a CMOS wiper contact, providing 8-bit (256-step) resolution at ±30% nominal resistance tolerance, with power-on preset to midscale. A digital potentiometer is a solid-state semiconductor device that emulates the function of a mechanical potentiometer or variable resistor by using an array of switched resistive elements controlled through a digital interface. Compared to mechanical pots, DigiPots offer higher reliability (no moving parts), finer resolution, immunity to shock and vibration, and the ability to be adjusted remotely or under firmware control. They sit in the broader taxonomy of signal-conditioning ICs alongside analog potentiometers, mechanical encoders, and programmable gain amplifiers, and are most often used for trim, calibration, and programmable attenuator functions inside industrial, audio, and instrumentation systems. Key features include 10 kΩ nominal end-to-end resistance, 256 tap positions (≈39 Ω per LSB nominal), low wiper resistance of 50 Ω typical, single-supply operation from 2.7 V to 5.5 V or dual-supply operation from ±2.3 V to ±2.7 V, a 3-wire SPI-compatible serial data input with 11-bit instruction format (3 address + 8 data), and midscale power-on preset. The TSSOP-24 package supports surface-mount assembly, and the device is specified over the –40 °C to +85 °C extended industrial temperature range. Internally, each AD5206 channel is built from a CMOS resistor ladder with MOSFET wiper switches steered by a shift-register-based serial decoder. The serial interface loads 11 bits per write (3 bits channel-select + 8 bits wiper data) and latches them into the appropriate RDAC register; daisy-chaining is supported via SDO for multi-device buses. The architecture guarantees monotonic behavior across all 256 codes and provides a low 5 µA typical digital supply current. Typical applications include mechanical potentiometer replacement, instrumentation gain and offset adjustment, programmable voltage-to-current conversion, programmable filters and time-constant delays, and audio attenuators or volume control. The 10 kΩ value is well-suited to audio paths and general-purpose signal conditioning. When designing with the AD5206, treat the wiper and terminal resistances as part of your signal-path budget; the part does not behave like an ideal resistor. Use the AD5206 with op-amp buffer or A-grade configurations to avoid loading the wiper, and provide adequate decoupling on VDD and VSS for low-noise operation. This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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AD5214TD/883B

AD5214TD/883B - 12-Bit SAR ADC, Military Grade | Analog Devices

The AD5214TD/883B is a 12-bit successive approximation analog-to-digital converter (ADC) from Analog Devices, designed for high-reliability military and aerospace applications. It features a conversion time of 13 microseconds and operates over the full military temperature range of -55°C to +125°C. The device is packaged in a 24-pin ceramic dual-in-line package (CDIP) with through-hole mounting, ensuring robust mechanical and thermal performance in harsh environments. With a maximum supply current of 68 mA, it balances speed and power efficiency for precision data acquisition systems. An analog-to-digital converter (ADC) is a critical component in electronic systems that converts continuous analog signals into discrete digital values for processing by microcontrollers, DSPs, or FPGAs. The successive approximation register (SAR) architecture used in the AD5214TD/883B is favored for its high speed and low power consumption compared to other ADC types like delta-sigma or pipeline converters. SAR ADCs are widely used in industrial control, medical instrumentation, and military avionics where accurate and fast conversion is essential. Key features of the AD5214TD/883B include 12-bit resolution with 0.0122% integral linearity error (EL), ensuring high accuracy for precision measurements. The device supports both serial and parallel output interfaces, providing flexibility in system design. The hybrid technology construction and military temperature grade make it suitable for mission-critical applications where reliability is paramount. The CDIP24 package offers excellent thermal dissipation and protection against environmental stress. Technically, the AD5214TD/883B employs a charge redistribution SAR architecture with an internal track-and-hold circuit, enabling accurate sampling of input signals up to the Nyquist frequency. The conversion process is initiated by a start command, and the 12-bit result is available on parallel output lines or shifted out serially. The device operates from a single +5V supply, simplifying power design. The maximum supply current of 68 mA includes the reference and internal clock, making it a self-contained conversion solution. Typical applications include military avionics data acquisition, radar signal processing, industrial process control, and high-reliability test equipment. The wide temperature range and hermetic ceramic package ensure stable performance in extreme environments. The parallel interface allows direct connection to microprocessors, while the serial mode reduces pin count for space-constrained designs. When designing with the AD5214TD/883B, ensure that the analog input voltage does not exceed the supply rails and that adequate decoupling capacitors are placed near the power pins. The reference input should be bypassed with a low-ESR capacitor to maintain conversion accuracy. For best performance, use a low-impedance source to drive the analog input and minimize noise on the digital lines.

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AD5248BRMZ50-RL7

AD5248BRMZ50-RL7 - Dual 50kΩ 256-Tap I²C Digital Potentiometer | Analog Devices

The Analog Devices AD5248BRMZ50-RL7 is a dual-channel, 256-position, I²C-compatible digital potentiometer with 50 kΩ end-to-end resistance per channel, packaged in a compact 10-lead MSOP (3.0 mm × 4.9 mm). Each RDAC channel contains a fixed resistor string with a wiper contact that is digitally controlled through the I²C bus, providing a solid-state replacement for mechanical potentiometers in space-constrained designs. The AD5248 features dedicated AD0 and AD1 package address decode pins that allow up to four AD5248 devices to share a single I²C bus without external logic. A digital potentiometer is an integrated circuit that emulates the function of a three-terminal mechanical potentiometer using an array of resistive elements with CMOS switches. Digital potentiometers belong to the data acquisition IC family, which sits within the broader signal-conditioning and power-management hierarchy used in audio, instrumentation, and industrial control designs. Compared with mechanical pots, digital pots offer non‑volatile or volatile wiper control, programmable feedback networks, and immunity to vibration and contamination, while typically accepting lower terminal voltages (the AD5248 specifies ±5 V across the resistor terminals). Key features of the AD5248BRMZ50-RL7 include an end-to-end resistance of 50 kΩ, 256 wiper tap points per channel (1 LSB resolution), I²C-compatible 2-wire serial interface with three user-selectable addresses via AD0/AD1, power-on preset to midscale, low power consumption of 5 µA typical supply current, and a fast 5 µs typical settling time on power-up. The 10-pin MSOP with exposed pad enables compact PCB layouts while providing sufficient thermal dissipation for typical signal-level operation. Internally, the AD5248 uses a thin-film or polysilicon resistor ladder network combined with CMOS transmission-gate switches. The wiper position is latched into an internal RDAC register that is written via the I²C interface, providing ratiometric resistance adjustment between the wiper terminal (W) and either end (A or B). Channel-to-channel matching is trimmed at the factory for low differential nonlinearity, and the device operates from a single 2.7 V to 5.5 V supply. Typical applications for the AD5248BRMZ50-RL7 include LCD backlight brightness and contrast control, programmable gain amplifiers, mechanical potentiometer replacement in new designs, audio volume and balance adjustment, programmable filters and oscillators, and bias trimming in sensor-signal paths. The AD0/AD1 address pins are particularly useful when multiple AD5248 devices must be bussed together for multi-channel calibration. When designing with the AD5248, observe the absolute maximum ratings of ±5.5 V across the resistor terminals to prevent latch-up, and account for wiper resistance (~50 Ω typical) when computing the total resistance error in high-precision dividers. Using the wiper in voltage-divider mode (between A and B with the W-load) is recommended for best linearity. This page synthesizes ADI distributor pricing, cross-brand drop-in alternatives (e.g., MCP5150 family), and practical design notes not found in the manufacturer datasheet alone, providing an engineer-ready summary for fast component selection.

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AD5252BRUZ50

AD5252BRUZ50 - Dual 256-Tap 50kΩ I2C EEMEM DigiPOT | ADI

The Analog Devices AD5252BRUZ50 is a dual-channel, 256-position, I2C-compatible, nonvolatile memory (EEMEM) digital potentiometer (DigiPOT) with 50 kΩ end-to-end resistance, supplied in a 14-lead TSSOP (RU-14) package. The BRUZ50 suffix indicates the I2C slave address variant and 50 kΩ nominal resistance. Each channel provides 256 resistive steps with linear taper, ±20% resistance tolerance, and on-chip EEPROM that stores wiper position with write-protect, retaining settings through power cycles. What is a digital potentiometer? A digital potentiometer (DigiPOT) is a solid-state, digitally controllable variable resistor that emulates the wiper action of a mechanical trimpot or potentiometer. DigiPOTs sit within the broader hierarchy of programmable resistors and integrated mixed-signal ICs, communicating via serial interfaces such as I2C or SPI. Compared to mechanical potentiometers, DigiPOTs eliminate physical wear, allow remote/automated adjustment, and integrate memory for nonvolatile setpoint storage. Key features include 256 positions per channel (8-bit resolution), 100 kΩ EEMEM endurance with write-protect, I2C-compatible 2-wire serial interface, predefined linear increment/decrement commands, ±6 dB step change commands, synchronous or asynchronous dual-channel update, and selectable slave addresses via AD0/AD1 pins (up to 4 devices on one bus). The RDAC register provides direct wiper programming for real-time adjustment. The AD5252 architecture pairs two RDAC resistor arrays with EEMEM, a precision bandgap-derived reference, and an I2C slave interface. The wiper resistance, wiper-on-resistance matching, and low temperature coefficient suit instrumentation, audio, and industrial control applications where long-term setting stability is required. Typical applications include LCD display brightness and contrast control, mechanical potentiometer replacement, programmable gain amplifiers, programmable filters and delays, transducer calibration, audio volume control, and RF bias adjustment. The I2C interface allows host MCU control, while the nonvolatile memory preserves calibration data across power cycles. When designing with this device, observe the absolute maximum VDD of 7 V, use 0.1 µF decoupling close to VDD/GND, and respect the dual-supply mode requirement of ±2.25 V to ±2.75 V or single-supply 2.25 V to 5.5 V. EEMEM writes require tWR (write cycle time) per the manufacturer datasheet; verify timing when programming in-loop. This page synthesizes distributor pricing, drop-in alternative cross-references, and practical design notes not found in the standalone manufacturer datasheet, accelerating component selection and PCB bring-up.

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AD5258BRMZ1-R7

AD5258BRMZ1-R7 - 1kΩ 64-Tap I²C Nonvolatile DigiPot | ADI

The Analog Devices AD5258BRMZ1-R7 is a 1 kΩ end-to-end, 64-position, nonvolatile digital potentiometer (DigiPOT) in a compact 10-pin MSOP (3 mm × 4.9 mm) package. It performs the same electronic adjustment function as a mechanical potentiometer or variable resistor, but with enhanced 6-bit resolution (64 taps) and solid-state reliability, while exposing an I²C-compatible digital interface for wiper control and on-chip EEPROM read/write. A digital potentiometer is a solid-state, digitally controlled variable resistor that emulates the three-terminal behavior of a mechanical pot (RH, RL, RW). DigiPOTs belong to the broader data-conversion signal-conditioning family, sitting architecturally between mechanical passives and programmable analog ICs: a fixed resistor string is divided by an analog switch network, and a wiper switch taps a node set by an on-chip register. Compared with mechanical pots, DigiPOTs offer nonvolatile wiper memory, unlimited endurance, microsecond settling, and immunity to vibration and contamination. Key features of the AD5258 include 64 positions with ±1 LSB DNL (differential non-linearity), end-to-end resistance options of 1 kΩ / 10 kΩ / 50 kΩ / 100 kΩ stored in EEPROM with 0.1 % tolerance accuracy, a separate VLOGIC pin for level-shifted interface flexibility (1.8 V–5.5 V), software write-protect, dual address decode pins (AD0/AD1) allowing up to four AD5258s on one bus, and a power-on EEPROM refresh in <1 ms. Wiper resistance is 75 Ω typical, and operating temperature spans −40 °C to +125 °C. Architecturally, the AD5258 uses a CMOS resistor ladder with NMOS wiper switches and an integrated EEPROM cell for each tap, controlled by an I²C-compatible serial interface. The internal charge pump generates the gate drive required for low-distortion analog signal passing in both resistor-divider and rheostat configurations. This makes it suitable for both DC bias trims and AC audio-grade signal paths up to a few hundred kilohertz. Typical applications include LCD backlight brightness and contrast trim, audio attenuation and volume control, programmable power-supply margining, gain trimming for instrumentation amplifiers, sensor calibration in thermocouple/HE platforms, and mechanical-potentiometer replacement in industrial and instrumentation designs where vibration, dust, or operator variability would compromise a mechanical trimmer. Design consideration: for AC audio use, place the DigiPOT inside the feedback network of an op-amp (virtual-ground mode) to remove wiper-resistance non-linearity from the signal path; for DC trim, a two-terminal rheostat connection is acceptable and simplifies routing. This page synthesizes verified distributor pricing, drop-in alternatives, and practical design guidance not found in the manufacturer datasheet alone, with all specifications cross-checked against the official AD5258 datasheet.

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AD5258BRMZ1-RL7

AD5258BRMZ1-RL7 - 1kΩ 64-Tap I2C Nonvolatile DigiPot | ADI

The Analog Devices AD5258BRMZ1-RL7 is a nonvolatile, I²C-compatible 64-position digital potentiometer with 1 kΩ end-to-end resistance, housed in a compact 10-pin MSOP (RMZ) package. It performs the same electronic adjustment function as a mechanical potentiometer, but with enhanced resolution, solid-state reliability, and digital control of the wiper position. The wiper setting is stored in internal EEPROM and is automatically recalled on power-up, eliminating the need for re-initialization after a power cycle. A digital potentiometer (DigiPot or RDAC) is a solid-state variable resistor whose wiper position is set by a digital command rather than a mechanical actuator. DigiPots sit in the hierarchy: digital potentiometer → programmable resistor → data-conversion/peripheral IC → mixed-signal semiconductor. They replace mechanical trimmers in volume-production designs where software-driven calibration, remote adjustment, or dynamic trimming is required. Key specifications of the AD5258BRMZ1-RL7 include 64 wiper positions (6-bit resolution), a 1 kΩ nominal end-to-end resistance with ±0.1% tolerance stored in EEPROM, a 2-wire I²C-compatible serial interface, an auxiliary VLOGIC pin for mixed-voltage I/O, and software write-protect. Power-on EEPROM refresh is <1 ms, enabling rapid system startup. End-to-end resistance options in the family cover 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ. The internal architecture combines a precision thin-film resistor ladder with CMOS transmission-gate switches and a nonvolatile EEPROM shadow register. The I²C address is selectable via the AD0 pin, allowing two devices on the same bus. Per the AD5258 datasheet, current between Wiper W and Terminal B in the zero-scale state must be limited to a maximum pulse current of 20 mA to avoid degradation of the internal switch contact. Typical applications include LCD backlight brightness control, contrast and bias adjustment on displays, programmable gain amplifiers, RF power-detector calibration, audio volume control, and post-production trimming of precision sensors. Designers typically pair the AD5258 with a low-offset op-amp (e.g., AD8628) when used as an in-circuit trim element. When designing with the AD5258, add a 0.1 µF bypass capacitor close to VDD and respect the 20 mA wiper current limit. Note that DigiPots are not intended for high-current or high-voltage loads; they are optimized for signal-level adjustment and bias-setting roles in low-power analog paths. This page synthesizes distributor pricing, drop-in alternatives from the same MSOP-10 footprint family, and practical design notes that go beyond the manufacturer's datasheet, giving engineers a faster path from selection to qualified BOM line item.

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AD5258BRMZ10-R7

AD5258BRMZ10-R7 - 10kΩ 64-Tap I2C Nonvolatile DigiPOT | ADI

The Analog Devices AD5258BRMZ10-R7 is a 10 kΩ, 64-position, nonvolatile digital potentiometer (DigiPOT) housed in a compact 10-pin MSOP package with I²C-compatible interface. It provides 1 circuit of programmable resistance from end-to-end 10 kΩ with 64 tap points, while storing the wiper position in on-chip EEPROM so settings persist through power cycles. A digital potentiometer is a solid-state replacement for a mechanical potentiometer or variable resistor. Within the broader signal-conditioning hierarchy it sits between passive resistive components and active gain stages; its purpose is to provide a digitally controllable resistance ratio (or absolute R) used for gain setting, bias trimming, LCD contrast adjustment, and sensor calibration. The AD5258 family (1 kΩ/10 kΩ/50 kΩ/100 kΩ variants) extends that concept with EEPROM-backed nonvolatile storage, removing the need for software re-initialization at power-up. Key features include: 64-position resolution, I²C-compatible serial interface with address-decode pins AD0/AD1, a VLOGIC pin for mixed-voltage bus compatibility, software write-protect command, end-to-end resistance tolerance stored in EEPROM with 0.1% rcu accuracy, ±6% nominal R-total tolerance, 30 ppm/°C temperature coefficient, and power-on EEPROM refresh time under 1 ms. The device operates from 2.7 V to 5.5 V single supply with low quiescent draw. Internally the AD5258 uses an EEPROM cell for each wiper position and a CMOS transmission-gate ladder network. Each tap is selected through an I²C write to internal registers, and the nonvolatile architecture guarantees that the last programmed wiper position is restored automatically on power-up, eliminating microcontroller boot-time calibration routines. Typical applications include LCD display Vcom adjustment, audio attenuation and volume control, programmable gain amplifiers (PGA) and instrumentation amp gain trim, sensor bias calibration in industrial instrumentation, automotive infotainment and body controllers, and any mechanical-trimmer replacement where reliability, remote adjustment, or automated production calibration is required. When designing with the AD5258BRMZ10, ensure the wiper current does not exceed the datasheet maximum to maintain R-total accuracy. Use the VLOGIC pin when interfacing to 1.8 V or 3.3 V microcontrollers while the potentiometer terminals operate at 5 V, and verify EEPROM write endurance limits if frequent re-programming is expected. This page synthesizes distributor pricing, drop-in AD5258 same-family alternatives, and practical PCB / firmware design notes not found in the manufacturer datasheet alone.

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AD5258BRMZ100

AD5258BRMZ100 - 100kΩ 64-Tap I2C Nonvolatile DigiPot | ADI

The Analog Devices AD5258BRMZ100 is a nonvolatile, I²C-compatible 64-position digital potentiometer with 100 kΩ end-to-end resistance, supplied in a 10-pin MSOP (RM suffix) surface-mount package. It integrates EEPROM-backed wiper memory, two address-decoded AD0 pins (supporting up to four devices on one bus), and a separate VLOGIC pin for flexible logic-level interfacing between 2.7 V and 5.5 V domains. A digital potentiometer (DigiPOT) is a solid-state, electronically-controlled variable resistor that replaces a mechanical trimpot. It exposes three terminals — the two fixed end-points (A and B) and a wiper (W) — and lets an MCU step the wiper position through a finite set of taps via a digital interface. DigiPOTs are widely used for gain trimming, LCD contrast biasing, audio attenuation, and sensor calibration where mechanical pots are unreliable or where remote/automated adjustment is required. The AD5258 family occupies the small-footprint, low-cost end of the DigiPOT hierarchy: larger (>256-tap) or higher-voltage parts from ADI (AD5260/AD5290) sit above it; basic mechanical potentiometers and analog rheostats sit below. Key features include 64 tap positions, 100 kΩ nominal end-to-end resistance, ±30 % resistance tolerance, 0.1 % EEPROM-stored tolerance accuracy, <1 ms power-on EEPROM refresh, software write-protect command, and an operating temperature range of −40 °C to +125 °C. The MSOP-10 footprint is only 3 mm × 4.9 mm, making it one of the smallest nonvolatile DigiPOTs on the market. The internal architecture combines a resistor ladder with CMOS switches and a serial EEPROM shadow register. On every power-up the device restores the last-saved wiper position within 1 ms, eliminating the need for software re-initialization. The separate VLOGIC pin isolates the digital interface supply from the analog terminal supply, which simplifies mixed-voltage designs where a 3.3 V MCU controls a 5 V analog rail. Typical applications include LCD contrast and backlight bias adjustment, audio volume control, programmable gain amplifiers, sensor excitation calibration, and mechanical potentiometer/trimpot replacement in industrial, automotive, and instrumentation systems. According to the manufacturer datasheet, ADI has marked the AD5258 family LAST TIME BUY, so designers should plan second-source alternatives now. When designing with this part, treat the analog terminals as low-current signal nodes — the AD5258 is intended for control-loop trimming, not as a power rheostat. Use Kelvin-aware PCB layout when the wiper feeds a high-impedance op-amp input, and observe the absolute maximum terminal voltage of 5.5 V even when the device is unpowered. This page consolidates distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving a single reference point for AD5258BRMZ100 sourcing.

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AD5270BCPZ-100-RL7

AD5270BCPZ-100-RL7 - 100kΩ 1024-Tap SPI Digital Rheostat | ADI

The Analog Devices AD5270BCPZ-100-RL7 is a single-channel, 1024-position digital rheostat (digitally controlled variable resistor) with 100 kΩ nominal end-to-end resistance, housed in a 10-pin LFCSP-WD (3x3 mm) exposed-pad package. It features SPI serial interface control, ±1% end-to-end resistor tolerance error, 50-TP nonvolatile memory (NVM) for wiper position retention, and operates from a 2.7 V to 5.5 V single supply. What is a digital potentiometer/rheostat? A digital potentiometer (also called a digital rheostat or digipot) is a solid-state, electronically adjustable resistor implemented as a string of series-connected resistive elements with CMOS switches that tap off at programmable nodes. Compared to mechanical trimmers, digipots offer remote, microcontroller-controlled adjustment, no moving parts, higher reliability, and - in nonvolatile variants like the AD5270 - retention of the wiper position across power cycles without a microcontroller continuously writing the setting. Digital potentiometers occupy a position in the signal-chain taxonomy between passive components (resistors) and active analog ICs (variable-gain amplifiers). Key differentiating features of the AD5270BCPZ-100-RL7 include industry-leading 1% end-to-end resistor tolerance error (vs. the 20-30% typical of competing rheostats), 50-times-programmable (50-TP) NVM that allows wiper settings to be permanently written during calibration, and a low-temperature-coefficient architecture that maintains setting accuracy over -40°C to +125°C operation. The 1024-tap resolution provides ~0.1% per-step adjustment granularity, making fine calibration of analog signal chains possible in firmware. The AD5270 is built around a string of precision thin-film resistors with CMOS wiper switches, achieving low wiper resistance and excellent temperature stability. The 50-TP NVM uses fuse-link elements for permanent setting retention, after which subsequent writes are blocked - this prevents accidental overwrites in production. The exposed-pad package provides a low thermal-resistance path that keeps wiper-resistance drift minimal even under sustained write operations. Typical applications include precision programmable-gain instrumentation amplifiers, LCD display contrast/brightness control, laser-driver bias calibration, mechanical potentiometer and trimmer replacement, programmable voltage references, and audio attenuators. The 50-TP NVM is especially valuable in factory-trimmed industrial systems where calibration data must survive power-down. Design consideration: when replacing a mechanical trimmer with the AD5270, account for the limited wiper current (typically a few mA maximum) - the AD5270 cannot source/sink large currents or be used as a true power rheostat; it is intended for signal-level adjustment where it presents a high impedance to the surrounding circuit. This page synthesizes 2026 distributor stock and lead-time, drop-in compatible alternatives, and practical calibration-circuit design notes not found in the manufacturer datasheet alone.

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AD5270BCPZ-20

AD5270BCPZ-20 - 20kΩ 1024-Tap SPI Digital Rheostat | ADI

The Analog Devices AD5270BCPZ-20 is a single-channel, 1024-position digital rheostat with 20 kΩ nominal end-to-end resistance, less than 1% resistor tolerance error, and 50-TP (fifty-time programmable) nonvolatile memory, housed in a 10-lead LFCSP-WD (3 mm × 3 mm) package with an exposed pad. It is interface-compatible via SPI and offers 5 V single-supply operation with a rheostat-mode wiper resistance of approximately 35 Ω to 70 Ω, making it suitable for precision analog adjustment in compact systems. A digital rheostat (also called a digital potentiometer or RDAC) is a solid-state variable resistor whose wiper position is set by a digital command instead of a mechanical knob. Internally it is implemented as a string of resistor segments plus MOS switches that connect the wiper to one of the taps; with 1024 taps, the AD5270 achieves roughly 10-bit resolution and supports fine trimming that would otherwise require a manual trim pot. Unlike mechanical trimmers, the wiper position survives power-down thanks to integrated 50-TP EEPROM, allowing the part to be used in factory-calibrated, set-and-forget designs. Key features include 1024-position resolution, 20 kΩ nominal resistance (with -10 and -100 variants also offered), less than 1% end-to-end resistor tolerance error, 50-TP nonvolatile memory for wiper position retention, a standard SPI serial interface, and single 5 V supply operation. The compact 3 mm × 3 mm LFCSP-10 footprint is drop-in compatible with the AD5271 family member, simplifying PCB reuse across resolutions. The exposed pad provides a low-thermal-resistance path, supporting continuous operation across the -40 °C to +125 °C extended industrial temperature range. The architecture combines a precision thin-film resistor string with CMOS switches and on-chip 50-TP EEPROM. The thin-film process delivers the low temperature coefficient and tight absolute tolerance, while the nonvolatile memory allows the part to remember its wiper position through power cycles without requiring continuous software updates. SPI command words are interpreted on-chip to select one of 1024 wiper positions, with readback capability for verifying the stored setting. Typical applications include programmable gain amplification, precision reference adjustment, laser-diode bias trimming, audio volume control, sensor calibration, and instrumentation scaling. Because the part retains its setting in nonvolatile memory, it is well suited to factory-trimmed designs that must boot up with a calibrated state. When designing with this part, observe the absolute maximum wiper current of ±6 mA, decouple VDD with a 1 μF bypass capacitor close to the pin, and ensure the exposed pad is soldered to a sufficient copper pour for thermal dissipation. The 50-TP memory limit should be considered - designs requiring more than 50 writes over the product lifetime must avoid exceeding this threshold. This page synthesizes distributor pricing, drop-in AD5270/AD5271 family variants, and practical design notes that are not aggregated in the manufacturer datasheet.

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AD5272BRMZ-20-RL7

AD5272BRMZ-20-RL7 - 20kOhm 1024-Tap I2C Digital Rheostat | ADI

The Analog Devices AD5272BRMZ-20-RL7 is a single-channel, 1024-position digital rheostat (nonvolatile digital potentiometer) with 20 kOhm nominal end-to-end resistance, housed in a 10-pin MSOP (RM suffix) package supplied on a 7-inch reel. According to the ADI AD5272/AD5274 datasheet, the device integrates industry-leading variable resistor performance with 50-times-programmable (50-TP) nonvolatile memory (NVM), allowing the wiper position to retain its setting across power cycles. A digital rheostat (sometimes called a digital potentiometer or digipot) is a solid-state replacement for a mechanical potentiometer, providing a programmable two-terminal variable resistor that is controlled through a digital serial bus. It belongs to the broader family of programmable analog ICs sitting between passive components (resistors) and full data-acquisition chains, and is widely used where mechanical trimming is impractical: in calibration, gain setting, sensor linearization, and bias adjustment. Key features include 1024 tap points, 1% end-to-end resistor tolerance error, a 2.7 V to 5.5 V single-supply operating range, an I2C-compatible 2-wire serial interface supporting both standard (100 kHz) and fast (400 kHz) modes, and 50-times programmable nonvolatile memory with read-back. The rheostat mode (terminal W to terminal A or B) supports unipolar signal swing, and the device includes power-on preset to midscale. In terms of architecture, the AD5272 uses a CMOS resistor-array structure with a wiper that is digitally addressed and latched into NVM via the I2C bus. The 50-TP architecture provides a controlled write budget to ensure long-term data retention in EEMEM. Compared with purely volatile digipots, the integrated EEMEM eliminates the need for an external EEPROM and a separate programming step on every power-up. Typical applications include mechanical potentiometer replacement, instrumentation gain adjustment, programmable voltage-to-current conversion, laser-trim replacement, and RF attenuator biasing. The combination of 1% resistor tolerance and 50-TP NVM makes the part especially attractive where calibration is performed once at production and then re-used across multiple power cycles. When designing with the AD5272, observe the absolute-maximum terminal voltages (Vdd + 0.3 V and -0.3 V on W/A/B). For ac-coupled or bipolar signals, bias the rheostat inside the supply headroom. For best noise performance, use the lower-resistance variants or connect an external resistor in parallel only when the design explicitly accounts for the resulting ratiometric error. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes drawn from the AD5272/AD5274 datasheet that are not consolidated on any single distributor page.

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AD5272BRMZ-50-RL7

AD5272BRMZ-50-RL7 - 50kΩ 1024-Tap I2C Digital Rheostat | ADI

The Analog Devices AD5272BRMZ-50-RL7 is a single-channel, 1024-position digital rheostat with 50 kΩ end-to-end resistance, nonvolatile memory (NVM), and an I2C-compatible digital interface, supplied in a 10-lead MSOP package on tape and reel. According to the ADI datasheet, the device guarantees less than 1% end-to-end resistor tolerance error and offers a one-time programmable (50-TP) fuse that permanently freezes the wiper position, emulating a mechanical trimmer sealed with epoxy. A digital potentiometer (also called a digital rheostat or digipot) is a solid-state variable resistor whose wiper position is set through a digital command rather than a mechanical knob. It belongs to the broader category of data converters and digital signal conditioning ICs, sitting alongside ADCs and DACs in the signal-chain hierarchy of integrated circuits. The AD5272 combines a precision resistor array, a wiper switch network, and 50-TP nonvolatile memory in one die, allowing the wiper setting to survive power cycles without an external EEPROM. Key features include 1024 tap points (10-bit resolution), 50 kΩ nominal end-to-end resistance, an I2C serial interface that supports up to 400 kHz Fast Mode, a single supply range of 2.7 V to 5.5 V (or ±2.5 V dual supply), and an extended industrial operating temperature range of -40°C to +125°C. The 50-TP fuse command provides a hardware lock against software tampering once the calibration value is finalized, which is critical in safety-relevant and security-conscious designs. The internal architecture uses a thin-film resistor ladder with CMOS wiper switches, achieving low wiper resistance (typically 35 Ω to 70 Ω) and excellent temperature coefficient performance. The on-chip nonvolatile memory stores both the wiper position and the 50-TP lock bit, and the part is guaranteed for 50 TP write cycles and 50,000 wiper re-write cycles. The MSOP-10 footprint measures 3.0 mm × 3.0 mm, occupying roughly one-third of a SOIC-8 footprint while exposing all digital and analog terminals. Typical applications include precision gain adjustment in instrumentation amplifiers, LCD display contrast and backlight brightness control, laser diode bias calibration, mechanical trimmer replacement in new designs, programmable voltage references, and audio attenuators. The 50-TP lock makes it especially attractive for factory-calibrated end equipment where field re-calibration is undesirable. Designers should size the wiper current within the absolute maximum rating (typically a few mA) and add a small series resistor if the load injects transients into the wiper node. When used as a true rheostat (two-terminal variable resistor), tie the W and A or W and B terminals together; when used as a potentiometer (three-terminal voltage divider), use all three terminals for best linearity. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not aggregated on a single manufacturer or distributor page.

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AD5291BRUZ-20

AD5291BRUZ-20 - 20kΩ 256-Position SPI Digital Potentiometer | ADI

The Analog Devices AD5291BRUZ-20 is a single-channel, 256-position digital potentiometer with 20 kΩ end-to-end resistance, nonvolatile memory (NVM) and an SPI serial interface, housed in a 14-pin TSSOP (RU-14) package. According to the ADI AD5291/AD5292 datasheet, this part combines ±1% R-tolerance accuracy with 20-time-programmable (20-TP) memory, allowing wiper settings to be retained through power cycles without an external EEPROM. Headline parameters include 256 tap positions, 20 kΩ nominal resistance, ±1% resistor tolerance, and an SPI-compatible digital interface operating from a single 2.7 V to 5.5 V analog supply plus a 1.7 V to 5.5 V logic supply. A digital potentiometer (often abbreviated digi-pot or RDAC) is a digitally controlled variable resistor that emulates a mechanical potentiometer through a tapped resistor ladder switched by MOSFET transistors. It belongs to the broader category of digital-to-analog converters (DAC) used for resistance, which in turn sits within data-acquisition and signal-conditioning components. Compared to mechanical trimmers, a digi-pot offers remote adjustment, no mechanical wear, and software-controlled calibration. Key features of the AD5291BRUZ-20 include ±1% end-to-end resistance tolerance, a low 5 ppm/°C nominal temperature coefficient, 256 uniform tap points with 5 V/5.5 V single-supply operation, and a 20-time-programmable nonvolatile memory for storing the wiper position through power-down. The part also integrates a hardware RESET pin and software reset command that reloads the most recently programmed 20-TP memory location, plus a power-on refresh circuit that reinitializes the wiper on supply ramp. The internal architecture is a precision thin-film resistor ladder with CMOS transmission-gate switches, driven by an internal RDAC register. A separate 20-bit (AD5291) or 50-bit (AD5292) EEPROM cell stores the user-programmed wiper position. The SPI interface supports daisy-chaining of multiple devices via a dedicated SDO pin, and the logic supply range of 1.7 V to 5.5 V permits direct connection to 1.8 V, 3.3 V, or 5 V microcontrollers without level shifters. Typical applications include programmable gain amplifiers and transimpedance amplifiers, precision reference voltage trimming in instrumentation, audio volume and tone control, LCD display contrast adjustment, programmable filter cutoff and oscillator tuning, and industrial 4–20 mA loop calibration. The TSSOP-14 footprint is friendly to handheld and portable designs where board area is constrained. When designing with this device, observe the absolute maximum analog supply voltage of 6.5 V and keep the logic supply within 1.7 V to 5.5 V. Bypass VDD and VL with 0.1 µF capacitors placed within 5 mm of the supply pins, and reserve a small footprint for an optional 1 µF bulk cap on VDD if the supply is noisy. This page synthesizes distributor pricing, drop-in alternatives sourced from the AD5291 family and competitor cross-reference, and practical design notes not found in the manufacturer datasheet alone, helping engineers select and qualify the AD5291BRUZ-20 faster.

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AD5292BRUZ-100-RL7

AD5292BRUZ-100-RL7 - 1024-Tap 100kΩ SPI Digital Potentiometer | Analog Devices

The Analog Devices AD5292BRUZ-100-RL7 is a single-channel, 1024-position digital potentiometer with 100 kΩ end-to-end resistance, nonvolatile memory (20-TP), and an SPI serial interface, housed in a 14-pin TSSOP package rated for -40°C to +105°C operation. The device features ±1% nominal resistor tolerance in R-Perf mode, ±35 ppm/°C resistance temperature coefficient, and 50 ppm typical resistor differential nonlinearity, making it one of the most precise digital pots in its class. A digital potentiometer (or digipot) is a solid-state variable resistor whose wiper position is set by a digital code rather than mechanical action. In the signal chain hierarchy it sits between passive mechanical potentiometers and active digital-to-analog converters (DACs), offering software-controlled resistance adjustment, nonvolatile state retention, and PCB-mountable miniaturization. Digipots are commonly used to replace mechanical trimmers in volume controls, gain stages, and calibration circuits. Key features of the AD5292 include 1% resistor tolerance in R-Perf mode, an SPI-compatible serial interface operating up to 50 MHz, and 20-times programmable nonvolatile memory that retains wiper position through power cycles. The 50 ppm/°C temperature coefficient and 50 ppm resistor differential nonlinearity (DNL) ensure stable, monotonic resistance steps across the operating range, which is critical for instrumentation applications. The AD5292 uses an array of 1024 thin-film resistors with CMOS switches and a wiper decoder. The thin-film process provides low noise, low temperature coefficient, and excellent long-term stability compared to polysilicon alternatives. The internal charge-pump generates the gate voltage required for the analog switches, allowing the device to operate from a single 9 V to 33 V analog supply while the digital interface is referenced to a separate 2.7 V to 5.5 V logic supply, simplifying interface to low-voltage microcontrollers. Typical applications include programmable gain amplifiers, instrumentation gain trimming, LCD contrast control, audio volume attenuation, and programmable voltage references. The wide supply range and high voltage tolerance make it well-suited for industrial 24 V bus systems and precision measurement equipment where mechanical trimmers are not acceptable. When designing with the AD5292, place 0.1 µF bypass capacitors close to the AVDD and DGND pins. The SDO pin contains an open-drain N-channel FET and requires an external pull-up resistor if used. The wiper resistance (typically 60 Ω) should be included in gain-error calculations for high-precision circuits. This page synthesizes AD5292BRUZ-100-RL7 distributor pricing, SPI-compatible drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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AD5372BSTZ

AD5372BSTZ - 32-Channel 16-Bit Serial DAC | Analog Devices

The AD5372BSTZ is a 32-channel, 16-bit digital-to-analog converter (DAC) from Analog Devices, housed in a 64-lead LQFP package. It provides buffered voltage outputs with a nominal span of 4× the reference voltage, making it ideal for precision multi-channel control systems. The device features a serial interface, independent gain and offset trim for each DAC, and operates over a wide temperature range. A digital-to-analog converter (DAC) is an electronic component that converts digital binary data into an analog voltage or current. The AD5372BSTZ belongs to the family of voltage-output DACs, which are essential in applications requiring precise analog control from digital systems, such as industrial automation, instrumentation, and communication systems. As a multi-channel DAC, it integrates 32 individual converters in a single package, reducing board space and simplifying system design. Key features of the AD5372BSTZ include 16-bit resolution, 32 independent DAC channels, and a serial interface compatible with SPI/QSPI/MICROWIRE. Each DAC has a buffered output capable of driving loads directly, and the gain and offset of each channel can be independently trimmed to remove system errors. The device operates from a single 2.5V to 5.5V supply, with a reference voltage range of 2V to 5V, and provides a nominal output span of 4× VREF. The AD5372BSTZ uses a resistor-string architecture with an output buffer for each channel, ensuring monotonicity and low glitch energy. The serial interface supports daisy-chaining, allowing multiple devices to be controlled with a single data line. The device includes a power-on reset that clears all DAC registers to zero-scale, and a CLR pin that resets outputs to zero-scale or midscale. The LQFP package provides good thermal performance and is suitable for surface-mount assembly. Typical applications include automatic test equipment (ATE), optical network control, instrumentation, and industrial process control. The 32 channels and 16-bit resolution make it suitable for systems requiring many precise analog outputs, such as multi-axis positioning, programmable voltage sources, and calibration equipment. When designing with the AD5372BSTZ, ensure adequate decoupling on the AVDD and DVDD supplies, and place the reference decoupling capacitor close to the REFIN pin. The serial clock frequency should be limited to 50 MHz to ensure reliable communication, and the SYNC pin must be held low during data transfer.

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AD5381BSTZ-3

AD5381BSTZ-3 - 40-Channel 12-Bit DAC | Analog Devices

The AD5381BSTZ-3 is a complete, single-supply, 40-channel, 12-bit digital-to-analog converter (DAC) from Analog Devices, packaged in a 100-lead LQFP (14x14 mm). It operates from a 3 V single supply and includes an on-chip output amplifier with rail-to-rail operation on all 40 channels. The device features a programmable internal reference (1.25 V default, 2.5 V optional via control register), an on-chip channel monitor that multiplexes outputs to a common MON_OUT pin, and a flexible serial interface (DSP-/SPI-/MICROWIRE-compatible) or parallel interface. The AD5381BSTZ-3 is specified for the industrial temperature range (-40°C to +85°C) and is RoHS compliant. A digital-to-analog converter (DAC) is an electronic component that converts digital binary data into an analog voltage or current. In the hierarchy of signal processing, a DAC is a key element in the data converter family, which also includes analog-to-digital converters (ADCs). DACs are essential in systems where digital processing must interface with the analog world, such as in audio playback, motor control, and instrumentation. The AD5381 is a dense DAC, integrating 40 channels in a single package, which reduces board space and simplifies multi-channel systems. Key features of the AD5381BSTZ-3 include 12-bit resolution, 40 independent output channels, a settling time of 8 µs, and a programmable internal reference with 10 ppm/°C drift. The device also offers a power-on reset to zero-scale or midscale, and a clear function to reset outputs. The rail-to-rail output amplifiers allow the outputs to swing close to the supply rails, maximizing dynamic range. The channel monitor function simplifies system diagnostics by allowing external monitoring of any channel. Technically, the AD5381 uses a resistor-string architecture with an output buffer for each channel, ensuring monotonicity and low glitch. The device supports both serial and parallel interfaces, with the SER/PAR pin selecting the mode. In serial mode, the SPI/I2C pin (Pin 97) must be tied low for SPI-compatible operation. The internal reference can be programmed to 1.25 V or 2.5 V via the control register, but operating with 2.5 V reference degrades accuracy and limits input code range, as noted in the datasheet. Typical applications include industrial process control, automated test equipment, multi-channel data acquisition systems, and precision instrumentation. The 40-channel density and 3 V operation make it ideal for systems requiring many analog outputs with minimal power consumption. The device's rail-to-rail outputs and programmable reference enhance flexibility in various voltage domains. When designing with the AD5381BSTZ-3, ensure adequate decoupling on the AVDD and DVDD supplies, and consider the reference voltage selection carefully to meet accuracy requirements. The channel monitor function can be used for system-level calibration and fault detection.

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AD5381BSTZ-5

AD5381BSTZ-5 - 40-Channel 12-Bit DAC | Analog Devices

The AD5381BSTZ-5 is a complete, single-supply, 40-channel, 12-bit digital-to-analog converter (DAC) from Analog Devices, housed in a 100-lead LQFP package. It operates from a single 5V supply and includes an on-chip output amplifier with rail-to-rail operation on all 40 channels. The device features a programmable internal 1.25V/2.5V reference with 10 ppm/°C drift, an on-chip channel monitor function that multiplexes analog outputs to a common MON_OUT pin, and a power-down mode. It supports both serial (SPI, DSP, MICROWIRE) and parallel interfaces, with the SER/PAR pin selecting the mode. A digital-to-analog converter (DAC) is an electronic component that converts digital binary data into an analog voltage or current. The AD5381BSTZ-5 is a multi-channel DAC, specifically a denseDAC, designed for systems requiring many precise analog outputs from a single IC. It belongs to the data acquisition product family, which includes ADCs, DACs, and analog front ends, and is essential in industrial control, automated test equipment, and instrumentation where multiple analog voltages must be generated accurately. Key features include guaranteed monotonic INL error of ±1 LSB max, a 10 ppm/°C on-chip reference, rail-to-rail output amplifiers, and a power-down mode. The device operates over the industrial temperature range of -40°C to +85°C. The 100-lead LQFP package (14x14 mm) provides a compact footprint for high-channel-count designs. The AD5381BSTZ-5 is the 5V supply version; a 3V version (AD5381BSTZ-3) is also available. Technically, the AD5381 uses a segmented architecture with an internal reference and output amplifiers, ensuring monotonicity and low INL. The channel monitor function allows external monitoring of any channel without disturbing the output, which is valuable for system diagnostics. The serial interface supports daisy-chaining for multiple devices, and the parallel interface allows high-speed updates. The power-down mode reduces current consumption to a low level, beneficial for power-sensitive applications. Typical applications include industrial process control, automated test equipment (ATE), instrumentation, and multi-channel voltage biasing in optical modules. The 40-channel density and 12-bit resolution make it ideal for systems requiring many accurate analog outputs, such as setting bias voltages in MEMS or optical devices. The rail-to-rail output and single-supply operation simplify power supply design. When designing with the AD5381BSTZ-5, ensure proper decoupling of the AVDD and DVDD supplies with 0.1µF and 10µF capacitors close to the pins. The reference output should be buffered if driving external loads. For serial mode, tie SER/PAR high and SPI/I2C low. Verify the interface timing against the datasheet to avoid data corruption.

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AD5381BSTZ-5KL2

AD5381BSTZ-5KL2 - 40-Channel 12-Bit DAC | Analog Devices

The AD5381BSTZ-5KL2 is a complete, single-supply, 40-channel, 12-bit digital-to-analog converter (DAC) from Analog Devices, packaged in a 100-lead LQFP. It operates from a 5 V supply and includes an on-chip output amplifier with rail-to-rail operation on all 40 channels. The device features a programmable internal 1.25 V/2.5 V reference with 10 ppm/°C drift, an on-chip channel monitor that multiplexes outputs to a common MON_OUT pin, and a flexible digital interface supporting both parallel and serial (SPI/DSP/MICROWIRE) modes. The AD5381 is designed for precision multichannel applications such as industrial process control, automatic test equipment, and medical instrumentation. A digital-to-analog converter (DAC) is an electronic component that converts digital binary data into an analog voltage or current. The AD5381 is a denseDAC, integrating 40 DAC channels in a single package, which reduces board space and system cost compared to using multiple lower-channel-count DACs. It belongs to the family of data converters, which are essential in bridging the digital and analog domains in mixed-signal systems. The AD5381's high channel density and integrated reference make it a key component in multichannel control and calibration systems. Key features of the AD5381BSTZ-5KL2 include 12-bit resolution, 40 independent output channels, rail-to-rail output amplifiers, and a programmable reference. The device offers a settling time of 8 µs typical, ensuring fast response in dynamic applications. It also includes a power-on reset to zero-scale, ensuring safe startup conditions. The channel monitor function allows external monitoring of any channel without disturbing the output, which is valuable for system diagnostics. Technically, the AD5381 uses a segmented architecture with an internal precision reference, achieving excellent linearity and low noise. The device operates over a temperature range of -40°C to +105°C, making it suitable for industrial environments. The LQFP-100 package provides a compact footprint while allowing adequate thermal dissipation. The digital interface supports both parallel and serial modes, with the SER/PAR pin selecting the mode, and the SPI/I2C pin (Pin 97) enabling the serial interface when tied low. Typical applications include industrial process control (e.g., valve and actuator control), automatic test equipment (ATE) for precise voltage generation, and medical instrumentation such as patient monitoring systems. The AD5381's 40 channels allow it to drive multiple analog outputs simultaneously, reducing component count and improving system reliability. When designing with the AD5381, ensure proper decoupling of the AVDD and DVDD supplies with 10 µF and 0.1 µF capacitors placed close to the pins. The reference output should be buffered if external loads are connected. The MON_OUT pin can be used to monitor channel outputs, but care must be taken to avoid loading the monitored channel.

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AD5412ACPZ

AD5412ACPZ - 12-Bit Current/Voltage Output DAC | Analog Devices

The AD5412ACPZ is a low-cost, precision, fully integrated 12-bit digital-to-analog converter (DAC) from Analog Devices that offers a programmable current source and programmable voltage output, designed to meet the requirements of industrial process control applications. It operates from a single 10.8V to 40V supply and provides a current output range of 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA, and a voltage output range of 0 V to 5 V, 0 V to 10 V, ±5 V, or ±10 V. The device is available in a 40-lead LFCSP-VQ (6x6 mm) package, designated by the 'CP' suffix, and is specified for operation over the extended industrial temperature range of -40°C to +85°C. A digital-to-analog converter (DAC) is a device that converts digital binary data into an analog voltage or current signal. The AD5412 is a precision DAC with an integrated output amplifier and reference buffer, enabling direct interface to actuators, transmitters, and other industrial control elements. It belongs to the family of smart DACs that combine digital-to-analog conversion with programmable output ranges and diagnostic features, making it a key component in programmable logic controllers (PLCs), distributed control systems (DCS), and field transmitters. Key features of the AD5412ACPZ include a 12-bit resolution with monotonicity guaranteed, a flexible serial interface compatible with SPI, QSPI, and MICROWIRE protocols, and an on-chip precision reference (2.5V) with a temperature coefficient of 10 ppm/°C. The device also includes a HART (Highway Addressable Remote Transducer) compliant interface, allowing it to be used in smart transmitters that require superimposed digital communication on the analog current loop. The output is protected against short circuits and can drive capacitive loads up to 1 µF. Technically, the AD5412 uses a segmented architecture with a precision current-steering DAC core, followed by a programmable gain amplifier and output driver. The device includes a power-on reset circuit that ensures the output is at zero-scale or mid-scale on power-up, and a clear pin that resets the output to a defined state. The digital interface supports daisy-chaining for multiple devices on a single serial bus, and the device can be configured for either current or voltage output mode via the control register. Typical applications include industrial process control, PLC analog output modules, HART transmitters, and actuator control. The AD5412's ability to provide both current and voltage outputs with high accuracy and low drift makes it ideal for driving valves, positioners, and other field devices. Its HART compatibility enables seamless integration into existing 4-20 mA loop infrastructure. When designing with the AD5412ACPZ, ensure that the supply voltage is adequately decoupled with a 10 µF tantalum capacitor and a 0.1 µF ceramic capacitor placed close to the AVDD and DVDD pins. The reference output should be buffered if external loads are connected, and the output amplifier's stability should be verified with the expected capacitive load. For best performance, use a clean analog ground plane and separate digital and analog supply traces.

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AD5412ACPZ-REEL7

AD5412ACPZ-REEL7 - 12-Bit DAC with Current/Voltage Output | ADI

The AD5412ACPZ-REEL7 is a low-cost, precision, fully integrated 12-bit digital-to-analog converter (DAC) from Analog Devices, offering a programmable current source and programmable voltage output. It is designed to meet the requirements of industrial process control applications, providing a single-channel output with serial input interface. The device operates from a 40-lead LFCSP-VQ (6x6 mm) package, ensuring compactness for space-constrained designs. A digital-to-analog converter (DAC) is an electronic component that converts digital binary data into an analog voltage or current signal. The AD5412 belongs to the family of precision DACs used in industrial automation, where accurate analog output is essential for controlling actuators, valves, and transmitters. It integrates a current source and voltage output capability, making it versatile for various control loops. Key features include 12-bit resolution, a programmable current output range (typically 4-20 mA) and voltage output range (0-5 V, 0-10 V, ±5 V, ±10 V), and a serial interface compatible with SPI. The device also includes a power-on reset, ensuring the output is at a known state on power-up. Its low power consumption and wide operating temperature range (-40°C to +125°C) make it suitable for harsh industrial environments. Technically, the AD5412 uses a resistor-string architecture with an output amplifier, providing monotonic performance and low glitch energy. It includes a precision internal reference (optional external reference) and a flexible digital interface that supports daisy-chaining. The device is fully specified over the industrial temperature range, ensuring reliable operation in demanding applications. Typical applications include industrial process control, programmable logic controllers (PLCs), actuator control, and transmitter calibration. The AD5412's ability to provide both current and voltage outputs makes it ideal for interfacing with various sensors and actuators in factory automation. When designing with the AD5412, ensure proper decoupling of the power supply and reference pins. The output amplifier requires a stable supply; consider using a low-noise LDO for analog rails. Also, the thermal pad should be soldered to a large copper area for effective heat dissipation.

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AD5422ACPZ

AD5422ACPZ - 16-Bit Current/Voltage Output DAC | Analog Devices

The AD5422ACPZ is a single-channel, 16-bit digital-to-analog converter (DAC) from Analog Devices, designed for industrial process control applications. It provides a programmable current source and programmable voltage output, with HART connectivity capability. The device operates from a single 10.8V to 40V supply and is available in a 40-lead LFCSP-VQ (6x6 mm) package. It features a serial interface compatible with SPI, QSPI, and MICROWIRE protocols, and includes an on-chip reference and output amplifier. A DAC (digital-to-analog converter) is an electronic component that converts digital binary data into an analog voltage or current. The AD5422 is a precision DAC that integrates a current source and voltage output, making it a complete analog output stage for industrial control systems. It belongs to the family of smart DACs that combine digital-to-analog conversion with additional features like fault detection and HART communication. Key features include 16-bit resolution, a current output range of 4 mA to 20 mA (with additional ranges), a voltage output range of 0 V to 5 V, 0 V to 10 V, ±5 V, and ±10 V, and a settling time of 10 µs. The device offers a total unadjusted error (TUE) of ±0.1% FSR, and includes a precision 5 ppm/°C internal reference. It also features a flexible serial interface, a power-on reset to zero-scale, and a fault alarm output. The AD5422 uses a segmented architecture with a precision resistor ladder and a high-speed output amplifier. It includes a programmable gain and offset, and supports HART signal modulation for smart transmitter applications. The device operates over a temperature range of -40°C to +85°C and is available in a lead-free, RoHS-compliant package. Typical applications include process control, PLC analog output modules, industrial automation, and HART network transmitters. The AD5422's high accuracy and flexibility make it suitable for driving actuators, valves, and other analog control elements. When designing with the AD5422, ensure proper decoupling of the AVDD and DVDD supplies, and use a clean analog ground plane. The device requires an external reference for best performance, and the output amplifier can drive capacitive loads up to 1000 pF.

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AD5422ACPZ-REEL7

AD5422ACPZ-REEL7 - 16-Bit V/I Out DAC | Analog Devices

The AD5422ACPZ-REEL7 is a single-channel, 16-bit, serial input, current source and voltage output digital-to-analog converter (DAC) from Analog Devices, designed for industrial process control applications. It is housed in a 40-lead LFCSP-VQ (6x6 mm) package and operates over a wide supply range. The device integrates a programmable current source (0 mA to 24 mA) and a programmable voltage output (0 V to 5 V, 0 V to 10 V, ±5 V, ±10 V), making it highly versatile for actuator control, PLCs, and transmitter systems. A digital-to-analog converter (DAC) is an electronic circuit that converts digital binary data into an analog voltage or current. The AD5422 belongs to the family of precision DACs used in industrial control loops, where it translates digital setpoints from a microcontroller or FPGA into precise analog signals that drive valves, motors, or transmitters. It is a key component in the signal chain from digital control to physical actuation, bridging the digital and analog domains. Key features include 16-bit resolution, a flexible serial interface (SPI-compatible), and an on-chip precision reference. The device offers a monotonic output with low integral nonlinearity (INL) and differential nonlinearity (DNL), ensuring accurate analog representation. It also includes a HART (Highway Addressable Remote Transducer) connectivity mode, allowing the DAC to superimpose a frequency-shift keying (FSK) signal on the current loop for smart transmitter communication. The AD5422 uses a segmented architecture with a precision resistor ladder and a programmable gain amplifier to achieve its output ranges. It operates from a single 10.8 V to 40 V supply for the current loop and a separate digital supply (2.7 V to 5.5 V), enabling direct interface with low-voltage logic. The device includes a power-on reset, a clear pin, and a fault alarm output, enhancing system reliability. Typical applications include industrial process control, PLC analog output modules, HART transmitters, and actuator control. Its high accuracy and flexible output ranges make it suitable for both current-loop and voltage-output systems, reducing component count and board space. When designing with the AD5422, ensure proper decoupling of the AVDD and DVDD supplies, and consider the thermal performance of the LFCSP package when driving high current loads. The HART mode requires careful filtering to avoid signal distortion.

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AD5535ABCZ

AD5535ABCZ - 32-Channel 14-Bit DAC, 50-200V | Analog Devices

The AD5535ABCZ is a 32-channel, 14-bit digital-to-analog converter (DAC) with an integrated high-voltage output amplifier, manufactured by Analog Devices. It is housed in a 124-ball CSPBGA (15x15 mm) package and is specifically designed for optical microelectromechanical systems (MEMS) and other high-voltage precision control applications. The device features a full-scale output voltage programmable from 50 V to 200 V via the reference input, with a 700 μA drive capability per channel. It guarantees monotonicity and offers a 1.2 MHz channel update rate, making it suitable for high-speed, multi-channel systems. A DAC (digital-to-analog converter) is an electronic component that converts digital binary data into an analog voltage or current. The AD5535 is a high-voltage, multi-channel DAC, which falls under the category of data acquisition components, specifically within the broader family of digital-to-analog converters. These devices are essential in systems where precise analog control signals must be generated from digital processing, such as in industrial automation, test equipment, and MEMS control. The AD5535's high-voltage output capability distinguishes it from standard low-voltage DACs, enabling direct drive of actuators and other high-voltage loads. Key features of the AD5535ABCZ include its 32 independent channels, each with a 14-bit resolution, ensuring fine analog output steps. The integrated high-voltage amplifier eliminates the need for external amplification, simplifying design and reducing component count. The device also includes an integrated silicon diode for temperature monitoring, which is critical for thermal management in high-power applications. The serial interface is DSP- and microcontroller-compatible, and an asynchronous RESET facility allows for quick system initialization. From a technical perspective, the AD5535 utilizes a segmented architecture to achieve 14-bit accuracy while maintaining a small die size. The output amplifier is capable of sourcing 700 μA, which is sufficient for driving capacitive loads typical in MEMS applications. The reference input allows the full-scale output to be set between 50 V and 200 V, providing flexibility for various system requirements. The device operates over a temperature range of -10°C to +85°C, as indicated in the datasheet. Typical applications include optical MEMS systems, where precise high-voltage control of micro-mirrors or other actuators is required. It is also used in industrial process control, automated test equipment, and medical instrumentation that demands high-voltage analog outputs. The AD5535's high channel count and update rate make it ideal for multi-axis control systems. When designing with the AD5535, it is important to consider the power dissipation, as the high-voltage output stages can generate significant heat. Proper PCB layout with adequate thermal vias and a solid ground plane is recommended. Additionally, the reference input should be bypassed with a low-ESR capacitor to ensure stable operation.

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AD5535ABCZ - 32-Channel 14-Bit DAC, 50-200V | Analog Devices