Flash (Parallel) Analog-to-Digital Converter (ADC) Chips
Last Updated: January 31, 2025
Description
Flash (Parallel) Analog-to-Digital Converter (ADC) Chips are designed to convert analog signals into digital signals at extremely high speeds. They achieve this by using a parallel architecture that allows for rapid conversion, making them suitable for applications requiring fast data processing.
Working Principle
Flash ADCs operate by applying the input signal in parallel to a series of comparators, each set to a different threshold voltage. These comparators simultaneously determine the digital output by comparing the input signal against these thresholds. The output from the comparators is then encoded into a binary format. This parallel processing capability is what makes flash ADCs the fastest among ADC types, as they can convert an analog signal to a digital one in a single step. This speed is particularly useful in applications where rapid signal processing is crucial.
Applications
Flash ADCs are commonly used in applications that require high-speed data conversion. Specific examples include digital oscilloscopes, radar signal processing, and high-speed data acquisition systems. These applications benefit from the flash ADC's ability to quickly convert analog signals into digital data for further processing.
Advantages over other Analog-to-Digital Converter (ADC) Chips
Flash ADCs offer significant speed advantages over other types of ADCs, such as Successive Approximation Register (SAR) ADCs. While SAR ADCs use a single comparator and multiple conversion cycles, flash ADCs use multiple comparators and a single conversion cycle, allowing for much faster data conversion. This makes flash ADCs ideal for applications where speed is a critical factor.
Limitations
Despite their speed, flash ADCs have some limitations. They typically have a large form factor due to the number of comparators required, which can lead to high capacitance and increased power consumption. Additionally, they are prone to out-of-sequence code glitches, which can affect the accuracy of the conversion.
Considerations
When considering flash ADCs, it is important to weigh the initial costs and operating expenses against the benefits of their high-speed performance. The large number of comparators can increase the cost and complexity of the design. Additionally, the high power consumption may lead to increased operating expenses. Durability and accuracy can also be affected by the potential for code glitches, so careful design and testing are necessary to ensure reliable performance. Replacement and maintenance costs should also be considered, as the complexity of the device may lead to higher costs in these areas.
from Texas Instruments
8-Bit, 20 MSPS ADC Single Ch., Internal S &H, Low Power 24-SO -20 to 75 [See More]
- ADC Type: Flash
- Package Type: SO,TSSOP
- Interface Type: Parallel
- Screening Level: Catalog
from RS Components, Ltd.
8bit A-D converter,ADC0820CCWM SOIC20 [See More]
- ADC Type: Flash; Semi flash
- Package Type: SOIC; Soic w
- Interface Type: Parallel; Parallel
- Pins: 20
from DigiKey
8 Bit Analog to Digital Converter 1 Input 1 Flash 24-SOIC [See More]
- ADC Type: Flash
- Package Type: SOIC; "24-SOIC (0.295"", 7.50mm Width)"
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from Texas Instruments
8-Bit, 20 MSPS ADC Single Ch., Internal S &H, Low Power 24-SO -20 to 75 [See More]
- ADC Type: Flash
- Package Type: SO
- Interface Type: Parallel
- Screening Level: Catalog
from RS Components, Ltd.
CMOS High-Speed 8-Bit A/D Converter [See More]
- ADC Type: Flash; Flash
- Pins: 20
- Package Type: DIP; Dip
- Resolution: 8
from DigiKey
3 Bit Analog to Digital Converter 1 Input 1 Flash 64-SMT (9x9) [See More]
- ADC Type: Flash
- Packing Method: Bulk
- Package Type: 64-VFQFN Exposed Pad
- Pins: 64
from Texas Instruments
8-Bit, 40 MSPS ADC Single Ch., Internal S &H, Low Power 24-SO 0 to 70 [See More]
- ADC Type: Flash
- Package Type: SO,TSSOP
- Interface Type: Parallel
- Screening Level: Catalog
from RS Components, Ltd.
LEAD-FREE ADC 3.5DIGIT LCD DRIVER 40PDIP [See More]
- ADC Type: Flash; Flash
- Pins: 40
- Package Type: DIP; PDIP; PDIP
- Input Type: Digital
from DigiKey
IC ADC 8BIT 20-SOIC [See More]
- ADC Type: Flash
- Package Type: SOIC; "20-SOIC (0.295"", 7.50mm Width)"
- Interface Type: Parallel; Parallel
- Packing Method: Cut Tape (CT)
from RS Components, Ltd.
LEAD-FREE ADC 3.5DIGIT LOW PWR 7106 40PD [See More]
- ADC Type: Flash; Flash
- Pins: 40
- Package Type: DIP; PDIP; PDIP
- Sample Rate: 3000
from DigiKey
8 Bit Analog to Digital Converter 1 Input 1 Flash 24-SO [See More]
- ADC Type: Flash
- Package Type: SOIC; "24-SOIC (0.209"", 5.30mm Width)"
- Interface Type: Parallel; Parallel
- Packing Method: Tape Reel
from RS Components, Ltd.
Sine/D converter IC 6 Bit TSSOP-20 [See More]
- ADC Type: Flash; Flash
- Resolution: 6
- Package Type: SSOP; TSSOP; TSSOP
- Input Type: Single-Ended; Differential; Differential, Single Ended
from DigiKey
8 Bit Analog to Digital Converter 1 Input 1 Flash 24-TSSOP [See More]
- ADC Type: Flash
- Package Type: TSSOP; "24-TSSOP (0.173"", 4.40mm Width)"
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from DigiKey
8 Bit Analog to Digital Converter 1 Input 1 Flash 20-SSOP [See More]
- ADC Type: Flash
- Package Type: SSOP; "20-SSOP (0.209"", 5.30mm Width)"
- Interface Type: Parallel; Parallel
- Packing Method: Cut Tape (CT)
from DigiKey
8 Bit Analog to Digital Converter 1 Input 1 Flash 20-SOIC [See More]
- ADC Type: Flash
- Package Type: SOIC; "20-SOIC (0.295"", 7.50mm Width)"
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from DigiKey
8 Bit Analog to Digital Converter 1 Input 1 Flash 20-PLCC (9x9) [See More]
- ADC Type: Flash
- Package Type: PLCC; 20-LCC (J-Lead)
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from DigiKey
8 Bit Analog to Digital Converter 1 Input 1 Flash 20-PDIP [See More]
- ADC Type: Flash
- Package Type: DIP; PDIP; "20-DIP (0.300"", 7.62mm)"
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from DigiKey
10 Bit Analog to Digital Converter 4 Input 1 Flash 28-SOIC [See More]
- ADC Type: Flash
- Package Type: SOIC; "28-SOIC (0.295"", 7.50mm Width)"
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from DigiKey
8 Bit Analog to Digital Converter 1 Input 1 Flash 20-SOIC [See More]
- ADC Type: Flash
- Package Type: SOIC; "20-SOIC (0.295"", 7.50mm Width)"
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from DigiKey
12 Bit Analog to Digital Converter 1, 2 Input 2 FLASH, SAR 144-FCBGA (10x10) [See More]
- ADC Type: Flash
- Package Type: 144-FBGA, FCBGA
- Interface Type: JESD204B
- Packing Method: Tray
from DigiKey
12 Bit Analog to Digital Converter 1, 2 Input 2 FLASH, SAR 144-FCBGA [See More]
- ADC Type: Flash
- Package Type: 144-BGA, FCBGA
- Interface Type: JESD204B
- Packing Method: Tray
from DigiKey
8 Bit Analog to Digital Converter 1 Input 1 Flash 20-CERDIP [See More]
- ADC Type: Flash
- Package Type: "20-CDIP (0.300"", 7.62mm)"
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from DigiKey
8 Bit Analog to Digital Converter 8 Input 2 Flash 24-CDIP [See More]
- ADC Type: Flash
- Package Type: CDIP; "24-CDIP (0.300"", 7.62mm)"
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from DigiKey
8 Bit Analog to Digital Converter 8 Input 2 Flash 28-LCC (11.43x11.43) [See More]
- ADC Type: Flash
- Package Type: 28-LCC
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from DigiKey
8 Bit Analog to Digital Converter 1 Input 2 Flash 20-CLCC (9x9) [See More]
- ADC Type: Flash
- Package Type: 20-CLCC
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from DigiKey
8 Bit Analog to Digital Converter 1 Input 1 Flash 20-PLCC (9x9) [See More]
- ADC Type: Flash
- Package Type: PLCC; 20-LCC (J-Lead)
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from DigiKey
8 Bit Analog to Digital Converter 1 Input 1 Flash 20-PDIP [See More]
- ADC Type: Flash
- Package Type: DIP; PDIP; "20-DIP (0.300"", 7.62mm)"
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from DigiKey
8 Bit Analog to Digital Converter 1 Input 1 Flash 20-SOIC [See More]
- ADC Type: Flash
- Package Type: SOIC; "20-SOIC (0.295"", 7.50mm Width)"
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from DigiKey
8 Bit Analog to Digital Converter 8 Input 1 Flash 28-CDIP [See More]
- ADC Type: Flash
- Package Type: CDIP; "28-CDIP (0.600"", 15.24mm)"
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from DigiKey
8 Bit Analog to Digital Converter 8 Input 1 Flash 28-SOIC [See More]
- ADC Type: Flash
- Package Type: SOIC; "28-SOIC (0.295"", 7.50mm Width)"
- Interface Type: Parallel; Parallel
- Packing Method: Tape Reel
from DigiKey
8 Bit Analog to Digital Converter 8 Input 1 Flash 28-PLCC (11.51x11.51) [See More]
- ADC Type: Flash
- Package Type: PLCC; 28-LCC (J-Lead)
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from DigiKey
8 Bit Analog to Digital Converter 8 Input 1 Flash 28-SSOP [See More]
- ADC Type: Flash
- Package Type: SSOP; "28-SSOP (0.209"", 5.30mm Width)"
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from DigiKey
16 Bit Analog to Digital Converter 1 Input 1 Flash 44-PLCC (16.59x16.59) [See More]
- ADC Type: Flash
- Package Type: PLCC; 44-LCC (J-Lead)
- Interface Type: Parallel; Parallel
- Packing Method: Tube
from Lansdale Semiconductor, Inc.
Motorola/Freescale - CMOS 145000. This family of CMOS PLL devices is designed to perform phase-locked loop functions and includes phase detectors, dividers, encoders, decoders, and oscillators, which use the lower power consumption of the CMOS process. [See More]
- ADC Type: Flash
- Package Type: SOIC (optional feature); SSOP (optional feature); TSSOP (optional feature); PLCC (optional feature); DIP (optional feature)
- Interface Type: SPI
- Production Status: Discontinued
from Universal Semiconductor, Inc.
Open drain output, standard flash, one pulse conversion [See More]
- ADC Type: Flash
- Package Type: LCCC; DIP; Die
- Interface Type: Parallel
- Production Status: Full-Production