Overview
The AD1674TD, produced by Analog Devices Inc., is a complete, multipurpose 12-bit analog-to-digital converter (ADC). It features an onboard sample-and-hold amplifier (SHA), a 10-volt reference, and clock and three-state output buffers for microprocessor interface. This ADC is pin-compatible with industry standards such as the AD574A and AD674A but offers a faster conversion rate and integrated sampling function. The AD1674TD is designed using Analog Devices’ BiMOS II process, ensuring high-performance bipolar analog circuits. It is fully specified for both AC and DC parameters, making it ideal for signal processing and traditional DC measurement applications.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 12 bits | - | - | - |
| Sampling Rate | - | 100 kSPS | - | - |
| Signal to Noise and Distortion (S/N+D) Ratio | 69 dB | 70 dB | 70 dB | dB |
| Total Harmonic Distortion (THD) | -90 dB | -82 dB | -90 dB | dB |
| Full Power Bandwidth | - | 1 MHz | - | MHz |
| Full Linear Bandwidth | - | 500 kHz | - | kHz |
| Aperture Delay | 50 ns | 50 ns | 50 ns | ns |
| Aperture Jitter | 250 ps | 250 ps | 250 ps | ps |
| Acquisition Time | 1 µs | 1 µs | 1 µs | µs |
| Input Ranges | -5 V to +5 V, -10 V to +10 V, 0 V to +10 V, 0 V to +20 V | - | - | - |
| Temperature Range | -55°C | - | +125°C | °C |
| Package Type | - | 28-CDIP (0.605", 15.37mm) | - | - |
Key Features
- Complete monolithic 12-bit ADC with onboard sample-and-hold amplifier (SHA).
- Industry standard pinout compatible with AD574A and AD674A.
- AC and DC specifications, including S/N+D ratio, THD, and IMD.
- Four calibrated input ranges: 0 V to +10 V, 0 V to +20 V (unipolar), -5 V to +5 V, -10 V to +10 V (bipolar).
- High-speed conversion rate of 100 kSPS.
- Integrated 10-volt reference and clock.
- Three-state output buffers for microprocessor interface.
- MIL-STD-883 and SMD compliant versions available.
Applications
The AD1674TD is suitable for a variety of applications, including:
- Signal processing systems requiring high accuracy and speed.
- Traditional DC measurement applications.
- Military and industrial environments due to its wide temperature range and compliance with MIL-STD-883.
- Data acquisition systems where precise analog-to-digital conversion is necessary.
- Automotive and aerospace applications where robust and reliable ADCs are required.
Q & A
- What is the resolution of the AD1674TD ADC?
The AD1674TD has a resolution of 12 bits. - What is the sampling rate of the AD1674TD?
The AD1674TD has a sampling rate of 100 kSPS. - What are the input ranges supported by the AD1674TD?
The AD1674TD supports input ranges of -5 V to +5 V, -10 V to +10 V, 0 V to +10 V, and 0 V to +20 V. - Is the AD1674TD compatible with any industry standards?
Yes, the AD1674TD is pin-compatible with industry standards such as the AD574A and AD674A. - What is the temperature range of the AD1674TD?
The AD1674TD operates over a temperature range of -55°C to +125°C. - Does the AD1674TD have any military-grade certifications?
Yes, the AD1674TD is MIL-STD-883 compliant. - What is the package type of the AD1674TD?
The AD1674TD comes in a 28-CDIP (0.605", 15.37mm) package. - What are the key AC specifications of the AD1674TD?
The key AC specifications include a Signal to Noise and Distortion (S/N+D) Ratio of 70 dB, Total Harmonic Distortion (THD) of -82 dB, and Full Power Bandwidth of 1 MHz. - Does the AD1674TD have an integrated sample-and-hold amplifier?
Yes, the AD1674TD has an integrated sample-and-hold amplifier (SHA). - What are the typical applications of the AD1674TD?
The AD1674TD is typically used in signal processing, traditional DC measurement, military, industrial, data acquisition, automotive, and aerospace applications.
