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Product Detailed Parameters
- Description：IC ADC SNGL 12BIT 28PLCC T/R
- Series：-
- Mfr：Analog Devices Inc.
- Package：Bulk
- Number of Bits：12
- Sampling Rate (Per Second)：1.25M
- Number of Inputs：-
- Input Type：-
- Data Interface：Parallel
- Configuration：-
- Ratio - S/H:ADC：-
- Number of A/D Converters：2
- Architecture：-
- Reference Type：-
- Voltage - Supply, Analog：-
- Voltage - Supply, Digital：-
- Features：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：28-LCC (J-Lead)
- Supplier Device Package：28-PLCC (11.51x11.51)
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
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Overview
The AD1671JP-REEL is a monolithic 12-bit, 1.25 MSPS analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It integrates a high-performance sample-and-hold amplifier (SHA) and an internal voltage reference within a 28-pin Plastic Leaded Chip Carrier (PLCC) package. The device utilizes a subranging flash conversion architecture with digital error correction to achieve low power dissipation of 570 mW. It supports pin-configurable input ranges including ±5 V, 0–5 V, ±2.5 V, and 0–2.5 V, and provides parallel digital output in two's complement or offset binary formats.
Feature Summary
- 12-bit resolution with a throughput rate of 1.25 MSPS and conversion time of 800 ns.
- Integrated on-chip sample-and-hold amplifier (SHA) and 2.5 V voltage reference.
- Subranging flash architecture with digital error correction for improved accuracy.
- Pin-strappable input ranges: ±5 V, 0–5 V, ±2.5 V, and 0–2.5 V.
Applications
- High-speed data acquisition systems requiring 12-bit precision.
- Multiplexed signal sampling applications switching between negative and positive full-scale levels.
- Communication systems such as high-speed modems and digital radios utilizing its spurious-free dynamic range.
- Industrial control systems operating within the 0°C to +70°C temperature range.
Procurement Notes
Verify that the specific ordering suffix JP corresponds to the 28-pin PLCC package configuration. Confirm the grade J indicates the specified linearity performance for the commercial temperature range. Ensure the REEL designation matches the required tape and reel packaging format for automated assembly processes.
Selection Notes
Select the AD1671JP-REEL when a monolithic solution combining speed and low power consumption is required. Choose this model over hybrid implementations for improved system reliability. Consider the integrated SHA for applications sampling inputs at frequencies approaching the Nyquist rate without external holding circuits.
Part Context
The AD1671 series represents a complete single-chip sampling ADC function. The JP variant specifically denotes the plastic leaded chip carrier package option. This component is part of a family available in ceramic DIP and extended temperature grades, offering flexibility for various environmental and mechanical constraints.
Replacement Considerations
Public confirmed substitute part numbers are not provided in the source documentation. Verify compatibility with existing board layouts if substituting with other 28-pin PLCC ADCs, noting differences in pin configurations and electrical specifications.
