ADS7816PCG4 Equivalent & Substitute Parts

Part Overview

The ADS7816PCG4 is a 12-bit Analog to Digital Converter (ADC) with a single differential input, SAR architecture, and SPI data interface. Manufactured by Texas Instruments, this component operates at a 200 kHz sampling rate with 5V analog and digital supply voltages. The device is packaged in an 8-DIP through-hole configuration.

The ADS7816PCG4 is classified as obsolete. Locating equivalent or substitute components is necessary for new designs, production continuity, or system upgrades where this part is no longer readily available or preferred.

Substiute Parts

ADS7816PCG4

Texas InstrumentsIn Stock: 1142ADS7816PCG4 Datasheet

Current PartRFQ

ADS7816U

Texas InstrumentsIn Stock: 1602ADS7816U Datasheet

MFR RecommendedRFQ

MCP3001-I/P

Microchip TechnologyIn Stock: 1367MCP3001-I/P Datasheet

MFR RecommendedRFQ

MCP3201-BI/P

Microchip TechnologyIn Stock: 2703MCP3201-BI/P Datasheet

MFR RecommendedRFQ

MCP3201-CI/P

Microchip TechnologyIn Stock: 6202MCP3201-CI/P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ADS7816PCG4 is determined by the following critical parameters:

• Resolution: 12-bit conversion capability
• Sampling Rate: Minimum 100 kHz (ADS7816PCG4 operates at 200 kHz)
• Input Configuration: Single input channel with differential or pseudo-differential capability
• Data Interface: SPI protocol compatibility
• Architecture: SAR-based analog-to-digital conversion
• Supply Voltage Compatibility: Operation within or compatible with 5V supply rails
• Package Compatibility: Through-hole 8-DIP or surface-mount alternatives for redesigns

Substitute parts are grouped into two categories:

1. Direct Package Equivalent (ADS7816U): Same base part number, identical electrical specifications, alternative surface-mount packaging for design flexibility.

2. Functional Equivalents (MCP3201-BI/P, MCP3201-CI/P): 12-bit resolution, SPI interface, single input, SAR architecture. These Microchip components support wider supply voltage ranges (2.7V ~ 5.5V) and offer active product status with unlimited moisture sensitivity rating.

3. Resolution Trade-off (MCP3001-I/P): 10-bit resolution alternative with identical sampling rate, SPI interface, and through-hole 8-DIP packaging. Suitable for applications where 10-bit precision is acceptable.

Parameter Comparison

Engineering Selection Recommendations

ADS7816U is the primary substitute for direct replacement. It maintains identical electrical specifications and operating characteristics as the ADS7816PCG4 while offering active product status. The only difference is packaging: ADS7816U uses 8-SOIC surface-mount configuration instead of through-hole 8-DIP. This substitute is suitable for new PCB designs or rework scenarios where surface-mount assembly is feasible.

MCP3201-CI/P and MCP3201-BI/P are functionally equivalent 12-bit ADC alternatives from Microchip Technology. Both maintain 12-bit resolution, SPI interface, and single-input SAR architecture. These parts support wider supply voltage ranges (2.7V ~ 5.5V) and carry active product status with superior moisture sensitivity ratings (MSL 1, Unlimited). The sampling rate is reduced to 100 kHz, which is acceptable for applications not requiring the full 200 kHz capability of the original part. Both are available in through-hole 8-DIP packaging.

MCP3001-I/P is a 10-bit alternative suitable only for applications where reduced resolution is acceptable. It maintains the 200 kHz sampling rate, SPI interface, and through-hole 8-DIP packaging. This option is appropriate for cost-sensitive designs or legacy systems where 10-bit precision meets functional requirements.

All substitute parts are ROHS3 compliant and operate within the -40°C ~ 85°C temperature range, ensuring compliance with existing environmental and regulatory standards.

Frequently Asked Questions (FAQ)

Q: Can ADS7816U replace ADS7816PCG4 directly in existing PCBs?

A: ADS7816U is electrically identical but uses 8-SOIC surface-mount packaging instead of 8-DIP through-hole. Direct PCB replacement is not possible without redesign. However, ADS7816U is suitable for new designs or rework with surface-mount assembly capability.

Q: What is the key difference between the Microchip MCP3201 variants (BI/P and CI/P)?

A: Both MCP3201-BI/P and MCP3201-CI/P are 12-bit ADCs with identical electrical specifications. The primary difference is HTSUS classification (8542.39.0001 vs. 8542.39.0030), which may affect tariff or regulatory treatment depending on import jurisdiction. Functionally, they are interchangeable.

Q: Is MCP3001-I/P suitable as a substitute if my application requires 12-bit resolution?

A: No. MCP3001-I/P provides only 10-bit resolution. It is suitable only for applications where 10-bit precision is acceptable. For 12-bit requirements, use ADS7816U, MCP3201-BI/P, or MCP3201-CI/P.

Q: What is the impact of the reduced 100 kHz sampling rate in MCP3201 parts compared to the 200 kHz of ADS7816PCG4?

A: The MCP3201 series operates at 100 kHz sampling rate versus 200 kHz for the original part. This reduction is acceptable for applications with signal bandwidths below 50 kHz (Nyquist criterion). Applications requiring higher sampling rates must use ADS7816U or MCP3001-I/P, both of which support 200 kHz operation.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitutes (ADS7816U, MCP3001-I/P, MCP3201-BI/P, MCP3201-CI/P) are ROHS3 compliant, matching the compliance status of the original ADS7816PCG4.

Q: What is the advantage of Microchip parts regarding moisture sensitivity?

A: Microchip MCP3001 and MCP3201 series carry MSL 1 (Unlimited) rating, compared to MSL 2 (1 Year) for Texas Instruments parts. This provides superior moisture tolerance and extended shelf life without baking requirements, reducing handling and storage constraints.

Q: Can I use pseudo-differential input MCP parts as direct replacements for the differential input ADS7816PCG4?

A: Pseudo-differential inputs are functionally compatible with differential input requirements in most applications. However, pseudo-differential configuration uses one input as a reference and the other as the signal, whereas true differential accepts both inputs as signal. Verify your application's input signal topology before substitution.