Analog Devices Inc. AD7610BCPZ-RL

Overview

AD7610BCPZ-RL from Analog Devices is a 16-bit, 250 kSPS PulSAR® successive approximation register (SAR) ADC with programmable unipolar/bipolar input ranges (0 V to 5 V, 0 V to 10 V, ±5 V, ±10 V), integrated 5 V reference (±3 ppm/°C drift), on-chip temperature sensor, and dual parallel/serial (SPI-/QSPI™-/MICROWIRE™-/DSP-compatible) interface. It serves as the high-accuracy front-end digitizer in precision data acquisition systems requiring no pipeline delay and guaranteed no missing codes.

For engineers reviewing the AD7610BCPZ-RL datasheet, AD7610BCPZ-RL pinout, AD7610BCPZ-RL application, or AD7610BCPZ-RL equivalent, key selection considerations include its iCMOS® process enabling ±15 V analog supplies, hardware/software-configurable input range selection, 94 dB SNR at 2 kHz, 16-bit monotonicity, and support for both 16-bit parallel and serial master/slave read modes - critical for medical instrumentation, ATE, and spectrum analysis designs.

Technical Context

The AD7610BCPZ-RL implements a charge redistribution SAR architecture with zero pipeline latency and internal conversion clock generation. Its analog front end supports true bipolar operation via dedicated BIPOLAR/TEN pins and accepts ±15 V supplies (VCC/VEE) while maintaining 5 V logic compatibility (AVDD/DVDD/OVDD).

Configuration is achieved either through hardware pins (SER/PAR, EXT/INT, BIPOLAR, TEN) or via a write-only serial configuration port (SCCS/SCCLK/SCIN) when HW/SW = low. The device integrates error correction circuitry, a buffered 5 V reference (switchable via PDREF/PDBUF), and a calibrated on-chip temperature sensor (311 mV @ 25°C, 1 mV/°C).

Key Specifications

Pinout & Package

AD7610BCPZ-RL is housed in a Pb-free, 48-lead LFCSP package (7 mm × 7 mm) with exposed pad (EPAD), rated for −40°C to +85°C operation. The EPAD must be soldered to VEE per Analog Devices' recommendation for thermal and electrical performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-accuracy SAR ADC applications.

Compared with AD7610BCPZ-RL, AD7606C-16 trades single-channel performance for multi-channel simultaneity and relaxed supply requirements, while ADS8860 sacrifices bipolar range, integrated reference, and temperature sensing to achieve higher speed and lower power - making AD7610BCPZ-RL uniquely suited for precision, high-voltage, configurable single-channel acquisition.

Availability

AD7610BCPZ-RL is available at Aetrix Electronics and suitable for process control, medical instrumentation, and automated test equipment requiring stable component supply, long-term lifecycle support, and guaranteed Pb-free compliance.

Supply support for AD7610BCPZ-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 AD7610BCPZ-RL belongs to the PulSAR® family of precision SAR ADCs, designed specifically for applications demanding high DC accuracy, flexible input configurations, and robust operation in industrial and medical environments.

FAQ

What input voltage ranges does the AD7610BCPZ-RL support, and how are they selected?

The AD7610BCPZ-RL supports four input ranges: 0 V to 5 V, 0 V to 10 V, ±5 V, and ±10 V. Selection is performed via two dedicated hardware pins - BIPOLAR and TEN - eliminating software dependency. For example, BIPOLAR = high and TEN = high configures the ±10 V range. This hardware-based method ensures reliable, glitch-free range setting at power-up and avoids configuration errors common in register-based ADCs.

Does the AD7610BCPZ-RL require an external reference, or does it include one?

The AD7610BCPZ-RL includes a precision 5 V internal reference with typical drift of ±3 ppm/°C over −40°C to +85°C, and it can be enabled or disabled independently via the PDREF and PDBUF pins. When enabled, the REF pin outputs 5 V (4.965 V to 5.035 V at 25°C). An external reference may be used by disabling both internal reference and buffer, allowing input voltages from 4.75 V to AVDD + 0.1 V on the REF pin.

What is the purpose of the TEMP pin on the AD7610BCPZ-RL, and how is it used?

The TEMP pin on the AD7610BCPZ-RL provides a calibrated analog voltage output proportional to die temperature: 311 mV at 25°C with a sensitivity of 1 mV/°C. It is enabled only when the internal reference is active (PDREF = PDBUF = low). This output allows system-level thermal monitoring and enables real-time compensation of offset/gain drift in precision measurement applications without adding discrete sensors or calibration routines.

Can the AD7610BCPZ-RL operate with different digital interface voltages, and what are the supported logic levels?

Yes, the AD7610BCPZ-RL supports mixed-voltage operation via separate OVDD (input/output interface supply) and DVDD (digital core supply) pins. OVDD accepts 2.7 V to 5.25 V, enabling direct interfacing with 2.5 V, 3.3 V, or 5 V microcontrollers and FPGAs. Digital inputs accept VIH ≥ 2.1 V (up to OVDD + 0.3 V) and VIL ≤ 0.6 V; digital outputs drive VOH ≥ OVDD − 0.6 V and VOL ≤ 0.4 V - ensuring robust signal integrity across voltage domains.

How does the AD7610BCPZ-RL handle power consumption scaling with throughput?

The AD7610BCPZ-RL scales power linearly with throughput: 90 mW at 250 kSPS (with internal reference), dropping to 10 mW at 1 kSPS. This behavior stems from its SAR architecture, where analog circuitry is active only during conversion. In power-down mode (PD = high), consumption falls to 10 µW. This scalability makes AD7610BCPZ-RL suitable for both high-speed data logging and ultra-low-power battery-powered monitoring applications.