AD976AN - 16-Bit 100 kSPS ADC | Analog Devices | Signal Acquisition
MPN: AD976AN ✗ End of Life| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
AD976AN Overview
An ADC is a data-acquisition semiconductor that converts an analog voltage into a digital code. The AD976 family uses a switched-capacitor SAR architecture, combining high sampling throughput with factory calibration intended to minimize linearity errors. Its role in the broader hierarchy is ADC > data converter > data-acquisition IC > semiconductor.
The AD976A family supports 200 kSPS throughput, while the AD976 supports 100 kSPS throughput. The verified product-page search result identifies the AD976 as a 16-bit converter and confirms the 100 kSPS rate. Other verified features include single 5 V operation, ±10 V input range, internal or external 2.5 V reference selection, an on-chip clock, and a parallel output interface.
Because the AD976AN is supplied in a 28-pin PDIP package, it is primarily suited to through-hole legacy, industrial, instrumentation, and educational designs rather than compact surface-mount assemblies. Its parallel bus can require 16 data traces plus control and interface signals, making board routing and input conditioning important design considerations.
Typical applications include industrial process measurement, laboratory data-acquisition systems, instrumentation amplifiers, waveform capture, and legacy control equipment. The ±10 V input range can simplify interfacing with suitable sensor and amplifier stages, while the internal reference helps reduce external component count when sufficient accuracy is available.
When selecting this part, verify the complete AD976AN datasheet, pinout, timing requirements, reference configuration, input bandwidth, and acquisition timing before layout. This page synthesizes the verified manufacturer information, distributor listing, package data, and design considerations for engineers evaluating the AD976AN.
Drop-in alternatives for AD976AN — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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Request AlternativesAD976AN Maximum Ratings & Electrical Characteristics
| Converter Type | Successive-approximation switched-capacitor ADC |
| Resolution | 16 bit |
| Throughput Rate | 100 kSPS |
| Supply Voltage | 5 V |
| Analog Input Range | ±10 V |
| Input Type | Single input |
| Reference Voltage | 2.5 V internal or external |
| Interface | High-speed parallel |
| Architecture | BiCMOS switched-capacitor |
| On-Chip Clock | Yes |
| Factory Calibration | Factory calibrated to minimize linearity errors |
| Maximum Power Dissipation | 100 mW |
| Package | 28-pin PDIP |
| Mounting Type | Through-hole |
| AEC-Q100 Status | unknown |
AD976AN 28-pin pdip Pin Configuration Guide
Pin configuration for AD976AN (28-pin pdip package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for AD976AN.
Refer to the datasheet for full pin configuration.
Typical Applications
AD976AN is suitable for 6 applications: Industrial Process Measurement, Laboratory Data Acquisition, Waveform Capture, Instrumentation and Sensor Interfaces, Legacy Industrial Control Equipment, Educational and Prototype Systems.
Industrial Process Measurement
The AD976AN fits industrial process-measurement systems that digitize conditioned sensor signals at up to 100 kSPS. Its verified 16-bit resolution and ±10 V analog full-scale input range make it useful for signals generated by pressure, temperature, level, and flow transducers after suitable amplification or attenuation. The single 5 V supply simplifies digital power planning, while the parallel interface allows direct connection to a digital controller or capture logic. The engineer should place protection and filtering ahead of the ADC, keep the analog ground path controlled, and confirm acquisition timing from the manufacturer datasheet before selecting external components.
Recommended
Laboratory Data Acquisition
The AD976AN is appropriate for laboratory instrumentation that needs a deterministic 16-bit conversion path at 100 kSPS. The verified manufacturer information confirms a switched-capacitor SAR architecture, high-speed parallel interface, internal 2.5 V reference option, and factory calibration intended to reduce linearity errors. These features support compact acquisition modules that capture transient or periodic waveforms after external analog conditioning. The parallel output requires enough PCB routing and logic-capture resources, and the designer should verify the required input bandwidth and conversion timing directly from the official datasheet.
Recommended
Waveform Capture
AD976AN can serve as the conversion element in a moderate-speed waveform-capture front end when the acquisition system requires 16-bit codes at 100 kSPS. Its ±10 V input range can accept suitable conditioned waveforms without requiring a separate high-voltage ADC front end in every design. The internal 2.5 V reference provides a convenient starting point, although external reference selection may be necessary for calibration or system-level reference control. Because the verified information does not state input bandwidth or dynamic performance, the design must preserve the official datasheet timing, source-impedance, and filter requirements.
Recommended
Instrumentation and Sensor Interfaces
The AD976AN can digitize outputs from instrumentation amplifiers and sensor-conditioning circuits that operate within the ±10 V input range. Its 16-bit nominal resolution supports measurement systems requiring more precision than a low-resolution sensor interface, while 100 kSPS throughput is suitable for many monitoring and control loops. The analog input path should include overvoltage protection, common-mode control, and anti-alias filtering. The verified data does not provide input impedance, settling time, or noise figures, so these parameters must be checked in the official AD976/AD976A datasheet before finalizing the interface.
Recommended
Legacy Industrial Control Equipment
The AD976AN is relevant to legacy industrial equipment where a through-hole 28-pin PDIP ADC and parallel data bus are preferred over a compact serial-output converter. Its 100 kSPS throughput is sufficient for many supervisory, feedback, and diagnostic measurements, while the ±10 V range aligns with many industrial signal buses. The main engineering trade-off is board area and routing complexity: the parallel interface requires multiple data and control traces, and the analog section still needs careful grounding and protection. Confirm availability and lifecycle status before committing to a new production design.
Recommended
Educational and Prototype Systems
The AD976AN is well suited to educational ADC experiments and prototype systems where engineers need to observe both analog conditioning and parallel digital conversion. The verified 16-bit resolution, 100 kSPS throughput, single 5 V operation, and 28-pin PDIP package make the device easy to inspect in a through-hole prototype board. A microcontroller or FPGA can capture the parallel outputs, while a function generator or sensor emulator drives the analog input. The package is physically accessible for probing, but production designs should recheck supply sequencing, reference stability, timing, and thermal requirements from the manufacturer documentation.
Recommended
Recommended Products Summary
Engineering reference data for AD976AN — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Package | 28-pin PDIP |
| Brand | Analog Devices |
| Resolution | 16 bit |
| Throughput | 100 kSPS |
| Supply Voltage | 5 V |
| Analog Input Range | ±10 V |
| Architecture | Switched-capacitor SAR |
| Reference | 2.5 V internal or external |
| Digital Interface | High-speed parallel |
| Maximum Power Dissipation | 100 mW |
Key Differentiators
- AD976-family 100 kSPS option (vs AD976A)
- Single 5 V analog-to-digital conversion path (vs AD976A)
- Integrated reference and parallel interface (vs Generic cross-reference search candidates)
Design Notes
Route the 16-bit parallel output as a controlled digital bus and keep the analog input, reference, and ground paths away from high-current switching nodes. The AD976AN uses a high-speed parallel interface, so trace length matching and controlled return paths can reduce timing and noise problems. Confirm the exact output timing and setup/hold requirements in the official datasheet before assigning FPGA or microcontroller pins.
Do not treat the AD976AN and AD976A as interchangeable without checking conversion rate and system timing. Verified data distinguishes 100 kSPS for AD976 from 200 kSPS for AD976A. The related AD976A family may be useful in a redesigned acquisition chain, but the verified cross-reference data does not establish a drop-in replacement, so package, pinout, timing, and acquisition behavior require engineering review.
The verified maximum power dissipation is 100 mW, but actual board-level dissipation depends on supply voltage, conversion activity, reference configuration, and the surrounding circuit. Follow the manufacturer’s recommended supply decoupling and reference wiring. Because the supplied verified data does not include detailed application-circuit values, capacitor values, current limits, or thermal derating, obtain those details from the AD976/AD976A datasheet rather than estimating them.
Compliance Information
The supplied verified web results do not provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. Compliance status therefore remains unknown rather than inferred from the manufacturer name or package.