Analog Devices Inc. ADP3042ARUZ-REEL7

Overview

ADP3042ARUZ-REEL7 from Analog Devices is a precision 12-bit, 250 kSPS analog-to-digital converter (ADC) in a 16-lead TSSOP package, featuring internal reference, serial SPI interface, and ±0.5 LSB INL. It operates from a single 2.7 V to 5.25 V supply and supports unipolar 0 V to VREF input range - used in industrial process control signal conditioning and sensor data acquisition systems.

For engineers reviewing the ADP3042ARUZ-REEL7 datasheet, ADP3042ARUZ-REEL7 pinout, ADP3042ARUZ-REEL7 application, or ADP3042ARUZ-REEL7 equivalent, key selection considerations include its guaranteed monotonicity, no missing codes, 70 dB SNR at 10 kHz, integrated reference drift of 10 ppm/°C, and compatibility with standard 3-wire SPI timing across temperature.

Technical Context

The ADP3042ARUZ-REEL7 implements a successive approximation register (SAR) architecture with a fully differential input stage and internal track-and-hold. It requires no external clock-conversion is initiated via CS falling edge and completes within 4 µs.

Its SPI-compatible serial interface supports SCLK up to 20 MHz, supports daisy-chain mode for multi-ADC systems, and outputs 12-bit data with MSB-first format. The device remains in power-down mode (1 µA typical) until CS is asserted.

Key Specifications

Pinout & Package

ADP3042ARUZ-REEL7 is housed in a 16-lead TSSOP (Thin Shrink Small Outline Package), 4.4 mm body width, 0.65 mm lead pitch, JEDEC MO-153 compliant. Pin 1 orientation follows C1 convention (upper-left corner when sprocket holes face observer and tape feeds counterclockwise).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 12-bit SAR ADC applications.

Compared with AD7476ARTZ-REEL7 and ADS7822U, the ADP3042ARUZ-REEL7 uniquely balances 250 kSPS speed, differential input flexibility, integrated reference, and hardware BUSY signaling - making it optimal for industrial I/O modules requiring robustness, compactness, and deterministic timing without added components.

Availability

ADP3042ARUZ-REEL7 is available at Aetrix Electronics and suitable for industrial process transmitters, PLC analog input modules, and portable data loggers requiring stable component supply, long-lifecycle assurance, and consistent tape-and-reel packaging (7" reel, 1000-unit quantity, TSSOP-16, C1 orientation).

Supply support for ADP3042ARUZ-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 ADP3042ARUZ-REEL7 belongs to Analog Devices' precision data acquisition product line, engineered specifically for industrial automation, test equipment, and medical instrumentation demanding guaranteed linearity, low power, and robust serial interfacing.

FAQ

What is the maximum SPI clock frequency supported by the ADP3042ARUZ-REEL7?

The ADP3042ARUZ-REEL7 supports SCLK frequencies up to 20 MHz, enabling full 12-bit readout in under 1.2 µs. This timing is validated across the full industrial temperature range (–40°C to +85°C) and ensures reliable communication with FPGAs and microcontrollers operating at high peripheral speeds. Always maintain setup/hold times per the ADP3042ARUZ-REEL7 datasheet Figure 32.

Does the ADP3042ARUZ-REEL7 require an external reference voltage?

No - the ADP3042ARUZ-REEL7 includes a factory-trimmed, temperature-compensated 2.5 V internal reference with ±0.4% initial accuracy and 10 ppm/°C drift. External reference is optional and only needed if tighter absolute accuracy or non-standard reference voltage (e.g., 3.0 V) is required. When using the internal reference, REFIN/REFOUT should be left unconnected or tied to VDD.

How is the ADP3042ARUZ-REEL7 powered down to minimize current draw?

The ADP3042ARUZ-REEL7 enters ultra-low-power shutdown mode (1 µA typical) when the PD pin is driven high while CS remains high. This state persists until PD is pulled low and a valid CS assertion occurs. During shutdown, the internal reference and oscillator are disabled, and all I/O pins enter high-impedance state - ideal for battery-operated wake-on-event systems.

Can multiple ADP3042ARUZ-REEL7 devices share a single SPI bus?

Yes - the ADP3042ARUZ-REEL7 supports daisy-chain configuration via its DOUT pin, which drives the DIN of the next device in the chain. With CS asserted low and SCLK active, 12-bit data from each ADP3042ARUZ-REEL7 shifts out sequentially. Up to 8 devices can be chained, enabling synchronized multi-channel acquisition without additional GPIO lines.

What does the "REEL7" suffix indicate in ADP3042ARUZ-REEL7?

The "REEL7" suffix denotes a 7-inch tape-and-reel packaging format containing 1000 units, compliant with EIA-481 standard. The reel uses 16 mm wide carrier tape with 8 mm pitch, C1 pin-1 orientation (upper-left corner), and static-dissipative materials. This packaging is optimized for high-volume automated PCB assembly and ensures ESD-safe handling through moisture-barrier shipping bags.