MAX122ACAG+ Equivalent & Substitute Parts

Part Overview

The MAX122ACAG+ is a 12-bit Analog to Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for single-ended input data acquisition applications. This SAR (Successive Approximation Register) architecture device operates at a sampling rate of 333 kSPS and features parallel data interface output. The component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Alternative equivalent parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring identical electrical and mechanical specifications.

Substiute Parts

MAX122ACAG+

Analog Devices Inc./Maxim IntegratedIn Stock: 1183MAX122ACAG+ Datasheet

Current PartRFQ

MAX122ACAG+

Analog Devices Inc./Maxim IntegratedIn Stock: 1183MAX122ACAG+ Datasheet

DirectRFQ

MAX122ACAG+

Analog Devices Inc./Maxim IntegratedIn Stock: 1183MAX122ACAG+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX122ACAG+ is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters establish the substitution criteria:

Resolution and Conversion Architecture: 12-bit resolution with SAR architecture is the fundamental requirement for functional equivalence in data acquisition applications.

Sampling Performance: 333 kSPS sampling rate defines the conversion speed capability and must be matched exactly.

Input Configuration: Single-ended input with 1 input channel specifies the signal acquisition topology.

Data Interface: Parallel data interface output is required for system integration compatibility.

Reference Configuration: Support for both external and internal reference types ensures flexible circuit design compatibility.

Power Supply Requirements: Analog supply voltage of 5V with -10.8V ~ 15.75V range and digital supply of 5V must be maintained.

Thermal Operating Range: 0°C ~ 70°C operating temperature defines the environmental operating envelope.

Package Specification: 24-SSOP surface mount package with 0.209" width (5.30mm) is mandatory for PCB layout compatibility.

Compliance Standards: RoHS3 compliance and REACH unaffected status are required for regulatory and environmental standards adherence.

Parameter Comparison

Engineering Selection Recommendations

The MAX122ACAG+ maintains Active product status with full RoHS3 compliance and REACH unaffected classification, confirming ongoing manufacturer support and regulatory adherence. The component is available in production quantities with 1138 pieces in current stock inventory.

For applications requiring 12-bit analog to digital conversion with single-ended input configuration and 333 kSPS sampling performance, the MAX122ACAG+ provides direct equivalence. The SAR architecture with parallel data interface output supports standard microcontroller and FPGA integration patterns. The 24-SSOP surface mount package accommodates standard PCB assembly processes with 0.209" width specification.

Selection of equivalent parts must maintain strict parameter matching across resolution, sampling rate, input configuration, power supply requirements, operating temperature range, and package specification. The RoHS3 compliance status and unlimited moisture sensitivity rating ensure compatibility with modern manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: What defines a valid substitute for the MAX122ACAG+ ADC?

A: A valid substitute must match all electrical parameters including 12-bit resolution, 333 kSPS sampling rate, single-ended input configuration, parallel data interface, SAR architecture, external/internal reference support, 5V analog and digital supply voltages, and 0°C to 70°C operating temperature range. The package must be 24-SSOP surface mount with identical mechanical dimensions. RoHS3 compliance and MSL 1 rating are required.

Q: Can the MAX122ACAG+ be replaced with a different resolution ADC?

A: No. The 12-bit resolution is a core specification. Different resolution devices alter the quantization characteristics and output data format, requiring circuit redesign and firmware modification.

Q: Is the 24-SSOP package interchangeable with other package types?

A: No. The 24-SSOP package with 0.209" width is specific to this device. Different packages require PCB layout changes, different pin assignments, and modified assembly processes.

Q: What is the significance of the 333 kSPS sampling rate specification?

A: The 333 kSPS sampling rate defines the maximum conversion frequency and determines the Nyquist frequency for input signal bandwidth. Substitutes must maintain this exact sampling rate to preserve system timing and signal acquisition characteristics.

Q: Does the MAX122ACAG+ support both internal and external voltage references?

A: Yes. The device supports both external and internal reference types, providing circuit design flexibility for different application requirements.

Q: What are the power supply requirements for the MAX122ACAG+?

A: The analog supply voltage is 5V with operating range of -10.8V to 15.75V. The digital supply voltage is 5V. Both supplies must be maintained within specification for proper device operation.

Q: Is the MAX122ACAG+ suitable for industrial temperature applications?

A: The MAX122ACAG+ operates within 0°C to 70°C temperature range. Applications requiring extended temperature operation require alternative device selection.

Q: What is the significance of RoHS3 compliance for this component?

A: RoHS3 compliance confirms the device meets Restriction of Hazardous Substances regulations, ensuring lead-free construction and compliance with environmental standards required for modern electronics manufacturing and distribution.