Analog Devices Inc. ADAQ7980BCCZ-RL7

Overview

ADAQ7980BCCZ-RL7 from Analog Devices is a 16-bit, 1 MSPS integrated data acquisition μModule subsystem combining SAR ADC, precision ADC driver, reference buffer, and power management in a single 5 mm × 4 mm LGA package. It delivers ±8 ppm typical INL, 91.5 dB SNR at 10 kHz, and ±0.06 mV zero error (unity gain), enabling high-accuracy voltage measurement in space-constrained industrial and medical instrumentation.

For engineers reviewing the ADAQ7980BCCZ-RL7 datasheet, ADAQ7980BCCZ-RL7 pinout, ADAQ7980BCCZ-RL7 application, or ADAQ7980BCCZ-RL7 equivalent, key selection criteria include its integrated signal chain architecture, 1 MSPS throughput with no missing codes, −55°C to +125°C operation, and SPI/QSPI-compatible daisy-chain capability for multi-channel systems.

Technical Context

The ADAQ7980BCCZ-RL7 implements a system-in-package (SiP) architecture integrating a 16-bit SAR ADC, low-power high-bandwidth ADC driver (37 MHz −3 dB BW, 110 V/µs slew rate), stable reference buffer, and LDO-based power management block. All critical passive components are embedded, eliminating external RC network tuning for settling and noise performance.

It supports dual-supply (±7 V) and single-supply (5 V) configurations, with configurable ADC driver feedback for gain/common-mode adjustment. The device uses dynamic power scaling and flexible power-down modes (PD_AMP, PD_REF, PD_LDO) to reduce total dissipation to 21 mW typical at 1 MSPS while maintaining full 16-bit linearity and 91.5 dB SNR.

Key Specifications

Pinout & Package

ADAQ7980BCCZ-RL7 is housed in a 24-lead, 5 mm × 4 mm LGA (Land Grid Array) package with an exposed thermal pad. Pin numbering follows standard LGA layout (top view, pin 1 marked by dot); all pins are solderable lands on bottom side.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar integrated data acquisition subsystem applications.

Compared with ADAQ7980BCCZ-RL7, the ADAQ7988BCCZ-RL7 provides identical integration and accuracy at half the speed and lower power, while the LTC2378-16#PBF demands full signal chain design effort but grants full component-level control over noise, bandwidth, and thermal behavior.

Availability

ADAQ7980BCCZ-RL7 is available at Aetrix Electronics and suitable for automated test equipment, battery-powered instrumentation, and medical instruments requiring stable component supply, long-lifecycle support, and guaranteed traceability.

Supply support for ADAQ7980BCCZ-RL7 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, serving industrial, automotive, communications, and healthcare markets since 1965.

The ADAQ μModule family was designed to replace complex, multi-component data acquisition signal chains with fully characterized, production-ready subsystems - reducing design risk and accelerating time-to-market for precision measurement systems.

FAQ

What is the maximum sampling rate supported by the ADAQ7980BCCZ-RL7?

The ADAQ7980BCCZ-RL7 supports a maximum throughput of 1 MSPS under dual-supply conditions (VIO ≥ 3.0 V). At lower I/O voltages (VIO ≥ 1.7 V), the rate drops to 833 kSPS. This is confirmed in Table 2 of the Rev. B datasheet under "Conversion Rate" for ADAQ7980. The ADAQ7980BCCZ-RL7 does not support the 500 kSPS-only ADAQ7988 variant - its identity is fixed to the 1 MSPS grade.

Does the ADAQ7980BCCZ-RL7 require external passive components for basic operation?

No - the ADAQ7980BCCZ-RL7 integrates all critical passive components required for specified performance, including precision RC networks for ADC driver settling and reference decoupling. External components are limited to bulk decoupling capacitors (e.g., 10 µF on VDD, 100 nF on V+, V−, VIO) and optional feedback resistors if configuring non-unity gain. The datasheet explicitly states these passives are "included" and "crucial to achieving specified device performance."

Can the ADAQ7980BCCZ-RL7 operate from a single 5 V supply?

Yes - the ADAQ7980BCCZ-RL7 supports single-supply operation with VDD = V+ = 5.0 V and V− = 0 V, as detailed in the "Single-Supply Configuration" section (page 9). In this mode, it maintains 16-bit resolution, ±8 ppm INL, and 88.7 dB SNR at 10 kHz, though zero error drift increases slightly to 1.75 µV/°C. Reference input must be ≤3.3 V in this configuration.

What is the purpose of the PD_AMP and PD_REF pins on the ADAQ7980BCCZ-RL7?

PD_AMP and PD_REF are dedicated digital control inputs that independently disable the integrated ADC driver and reference buffer stages. When asserted low (<2.2 V), each reduces quiescent current - PD_AMP cuts driver current to 56 µA, PD_REF reduces reference load to <1 µA. Both support fast turn-on (<7.25 µs) and are essential for implementing low-power duty-cycled acquisition in battery-operated systems using the ADAQ7980BCCZ-RL7.

Is the ADAQ7980BCCZ-RL7 pin-compatible with other devices in the ADAQ7980/ADAQ7988 family?

Yes - all ADAQ7980 and ADAQ7988 variants, including ADAQ7980BCCZ-RL7 and ADAQ7988BCCZ-RL7, share identical 24-lead LGA package footprints, pin assignments, and electrical interfaces. The only functional difference is maximum throughput (1 MSPS vs. 500 kSPS); all registers, power-down sequences, SPI timing, and configuration commands are fully compatible. This allows direct substitution in existing layouts when bandwidth requirements change.