IC ADC 12BIT W/DSP INT 28-CDIP
The AD7878BQ is a fast, complete, 12-bit A/D converter with a versatile DSP interface consisting of an 8-word, first-in, first-out (FIFO) memory and associated control logic.
AD7878BQ Converter:Pinout, Specification, Datasheet
IC ADC 12BIT W/DSP INT 28-CDIP The AD7878BQ is a fast, complete, 12-bit A/D converter with a versatile DSP interface consisting of an 8-word, first-in, first-out (FIFO) memory and associated control logic.
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Apr 24, 2021
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AD7878BQ
2558In Stock
Min.: 1 Mult.: 1
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $162.32905 | $162.33 |
| 10+ | $153.14062 | $1531.41 |
| 100+ | $144.47228 | $14447.23 |
| 500+ | $136.2946 | $68147.3 |
| 1000+ | $128.57981 | $128579.81 |
Unit Price:$162.32905
Subtotal: $162.33
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AD7878BQ Pinout
AD7878BQ Description
The FIFO memory allows up to eight samples to be digitized before the microprocessor is required to service the A/D converter. The eight words can then be read out of the FIFO at maximum microprocessor speed. A fast data access time of 41 ns allows direct interfacing to DSP processors and high-speed 16-bit microprocessors.
An on-chip status/control register allows the user to program the effective length of the FIFO and contains the FIFO out of range, FIFO empty, and FIFO word count information.
The analog input of the AD7878 has a bipolar range of ±3 V. The AD7878 can convert full power signals up to 50 kHz and is fully specified for dynamic parameters such as signal-to-noise ratio and harmonic distortion.
The AD7878 is fabricated in Linear Compatible CMOS (LC2 MOS), an advanced, mixed technology process that combines precision bipolar circuits with low power CMOS logic. The part is available in four package styles, 28-pin plastic and hermetic dual-in-line package (DIP), leadless ceramic chip carrier (LCCC), or plastic leaded chip carrier (PLCC).
AD7878BQ Features
Complete ADC with DSP Interface, Comprising: Track/Hold Amplifier with 2 ms Acquisition Time; 7 ms A/D Converter; 3 V Zener Reference; 8-Word FIFO and Interface Logic
72 dB SNR at 10 kHz Input Frequency
Interfaces to High-Speed DSP Processors, e.g., ADSP-2100, TMS32010, TMS32020
41 ns max Data Access Time
Low Power, 60 mW type
AD7878BQ Advantages
Complete A/D Function with DSP Interface
The AD7878 provides the complete function for digitizing ac signals to 12-bit accuracy. The part features an on-chip track/hold, on-chip reference, and 12-bit A/D converter. The additional feature of an 8-word FIFO reduces the high software overheads associated with servicing interrupts in DSP processors.
Dynamic Specifications for DSP Users
The AD7878 is fully specified and tested for ac parameters, including signal-to-noise ratio, harmonic distortion and intermodulation distortion. Key digital timing parameters are also tested and specified over the full operating temperature range.
Fast Microprocessor Interface
The data access time of 41 ns is the fastest ever achieved in a monolithic A/D converter, and makes the AD7878 compatible with all modern 16-bit microprocessors and digital signal processors.
AD7878BQ Applications
Digital Signal Processing
Speech Recognition and Synthesis
Spectrum Analysis
High-Speed Modems
DSP Servo Control
Specifications
Analog Devices Inc. AD7878BQ technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. AD7878BQ.
AD7878BQ Tech Specifications
AD7878BQ Tech Specifications
Analog Devices Inc. AD7878BQ technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. AD7878BQ.
| Product Attribute | Attribute Value | |
|---|---|---|
| Lifecycle Status | PRODUCTION (Last Updated: 5 days ago) | |
| Factory Lead Time | 8 Weeks | |
| Contact Plating | Lead, Tin | |
| Mount | Through Hole | |
| Mounting Type | Through Hole | |
| Package / Case | 28-CDIP (0.600, 15.24mm) | |
| Number of Pins | 28Pins | |
| Operating Temperature | -25°C~85°C | |
| Packaging | Tube | |
| JESD-609 Code | e0 | |
| Pbfree Code | no | |
| Part Status | Active | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Number of Terminations | 28Terminations | |
| ECCN Code | EAR99 | |
| Terminal Finish | Tin/Lead (Sn/Pb) | |
| Max Power Dissipation | 95.5mW | |
| Peak Reflow Temperature (Cel) | NOT APPLICABLE | |
| Number of Functions | 1Function |
| Product Attribute | Attribute Value | |
|---|---|---|
| Supply Voltage | 5V | |
| Terminal Pitch | 2.54mm | |
| Reach Compliance Code | not_compliant | |
| Time@Peak Reflow Temperature-Max (s) | NOT APPLICABLE | |
| Base Part Number | AD7878 | |
| Pin Count | 28 | |
| Qualification Status | Not Qualified | |
| Polarity | Bipolar | |
| Configuration | S/H-ADC | |
| Number of Channels | 1Channel | |
| Interface | Parallel | |
| Power Dissipation | 60mW | |
| Number of Bits | 12Bits | |
| Input Type | Single Ended | |
| Architecture | SAR | |
| Converter Type | ADC, PROPRIETARY METHOD | |
| Supply Type | Dual | |
| Reference Type | Internal | |
| Data Interface | DSP |
| Product Attribute | Attribute Value | |
|---|---|---|
| Resolution | 1.5 B | |
| Sampling Rate | 100 ksps | |
| Voltage - Supply, Analog | ±5V | |
| Number of Analog In Channels | 1Analog In Channel | |
| Sampling Rate (Per Second) | 100k | |
| Max Dual Supply Voltage | 5.25V | |
| Output Bit Code | BINARY | |
| Integral Nonlinearity (INL) | 0.25 LSB | |
| Min Dual Supply Voltage | 4.75V | |
| Sample and Hold / Track and Hold | TRACK | |
| Dual Supply Voltage | 5V | |
| Ratio - S/H:ADC | 1:1 | |
| Analog Input Voltage-Max | 3V | |
| Negative Supply Voltage-Nom | -5V | |
| Differential Nonlinearity | 0.5 LSB | |
| Analog Input Voltage-Min | -3V | |
| Height Seated (Max) | 5.59mm | |
| RoHS Status | Non-RoHS Compliant | |
| Lead Free | Contains Lead |
AD7878BQ Functional Block Diagram
AD7878BQ Outline Dimension
Datasheet PDF
Download datasheets and manufacturer documentation for Analog Devices Inc. AD7878BQ.
AD7878BQ Documents
AD7878BQ Documents
Download datasheets and manufacturer documentation for AD7878BQ
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