MAX166DCPP Equivalent & Substitute Parts

Part Overview

The MAX166DCPP is an 8-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for single-channel data acquisition applications. It features a successive approximation register (SAR) architecture with a 200 kHz sampling rate, differential input configuration, and parallel data interface. The device operates from dual 5V supplies and is housed in a 20-pin DIP package suitable for through-hole mounting.

The MAX166DCPP is classified as obsolete. Identifying equivalent substitute parts is necessary to support legacy system maintenance, design updates, and procurement continuity when original inventory becomes unavailable.

Key Parameters

Parameter	Value
Resolution	8 Bit
Sampling Rate	200 kHz
Number of Inputs	1
Input Type	Differential
Data Interface	Parallel
Architecture	SAR
Reference Type	External, Internal
Voltage - Supply, Analog	5V
Voltage - Supply, Digital	5V
Operating Temperature Range	0°C ~ 70°C
Package / Case	20-DIP (0.300", 7.62mm)
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitute parts for the MAX166DCPP are determined by strict equivalence across all electrical and mechanical parameters. The following criteria define valid substitution:

Resolution: 8 bits
Sampling Rate: 200 kHz
Single differential input channel
Parallel data interface
SAR architecture with external and internal reference capability
Dual 5V supply operation (analog and digital)
Operating temperature range: 0°C ~ 70°C
Package: 20-pin DIP through-hole configuration
Base product number: MAX166

The substitute parts MAX166ACPP+ and MAX166CCPP+ meet all these electrical and mechanical requirements and are therefore direct parametric equivalents suitable for replacement in applications requiring the MAX166DCPP.

Parameter Comparison

Parameter	MAX166DCPP	MAX166ACPP+	MAX166CCPP+
Number of Bits	8	8	8
Sampling Rate (Per Second)	200k	200k	200k
Number of Inputs	1	1	1
Input Type	Differential	Differential	Differential
Data Interface	Parallel	Parallel	Parallel
Configuration	S/H-ADC	S/H-ADC	S/H-ADC
Ratio - S/H:ADC	1:1	1:1	1:1
Number of A/D Converters	1	1	1
Architecture	SAR	SAR	SAR
Reference Type	External, Internal	External, Internal	External, Internal
Voltage - Supply, Analog	5V	5V	5V
Voltage - Supply, Digital	5V	5V	5V
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C
Package / Case	20-DIP (0.300", 7.62mm)	20-DIP (0.300", 7.62mm)	20-DIP (0.300", 7.62mm)
Supplier Device Package	20-PDIP	20-PDIP	20-PDIP
Mounting Type	Through Hole	Through Hole	Through Hole
Base Product Number	MAX166	MAX166	MAX166

Engineering Selection Recommendations

Product Status Consideration: The MAX166DCPP is obsolete, while both MAX166ACPP+ and MAX166CCPP+ are active products. For new designs or system updates, active products are preferred to ensure long-term availability and manufacturing support.

Compliance Status: The MAX166DCPP is RoHS non-compliant. Both substitute parts (MAX166ACPP+ and MAX166CCPP+) are ROHS3 compliant, making them suitable for applications subject to RoHS regulations. Both substitutes maintain REACH Unaffected status and EAR99 export classification, consistent with the original part.

Packaging and Inventory: All three parts are supplied in 20-PDIP through-hole packages. MAX166ACPP+ and MAX166CCPP+ are available in tube packaging with active inventory (876 and 865 units respectively), compared to the obsolete MAX166DCPP (848 units, new original stock only).

For applications requiring RoHS compliance or long-term supply assurance, MAX166ACPP+ or MAX166CCPP+ are the appropriate selections. Both parts are electrically and mechanically equivalent to the MAX166DCPP.

Frequently Asked Questions (FAQ)

Q: Can MAX166ACPP+ or MAX166CCPP+ be used as direct replacements for MAX166DCPP in existing designs?

A: Yes. Both substitute parts are parametric equivalents with identical electrical specifications (8-bit resolution, 200 kHz sampling rate, differential input, parallel interface, 5V dual supply operation) and mechanical compatibility (20-pin DIP through-hole package). No circuit modifications are required.

Q: What is the difference between MAX166ACPP+ and MAX166CCPP+?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The difference lies in the temperature grade designation (A vs. C grade), which is reflected in the part number suffix. Both operate across the 0°C ~ 70°C temperature range specified for this product category.

Q: Why is RoHS compliance important for substitution?

A: The MAX166DCPP is RoHS non-compliant, while MAX166ACPP+ and MAX166CCPP+ are ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, compliant substitutes are mandatory. Compliance status is a critical selection criterion independent of electrical performance.

Q: Are there any packaging differences between the original and substitute parts?

A: All three parts use identical 20-pin DIP (0.300", 7.62mm) through-hole packages. The MAX166DCPP is supplied as new original stock, while MAX166ACPP+ and MAX166CCPP+ are supplied in tube packaging. Both packaging formats are compatible with standard through-hole assembly processes.

Q: What is the product status significance?

A: The MAX166DCPP is classified as obsolete, indicating discontinued manufacturing and limited future availability. MAX166ACPP+ and MAX166CCPP+ are active products with ongoing manufacturing support, ensuring reliable long-term procurement for maintenance and production applications.

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