Analog Devices Inc. AD7854ARS-REEL
- Part Number:
- AD7854ARS-REEL
- Manufacturer:
- Analog Devices Inc.
- Ventron No:
- 3015936-AD7854ARS-REEL
- Description:
- IC ADC 12BIT PARALLEL LP 28-SSOP
- Datasheet:
- AD7854ARS-REEL
Description
The AD7854/AD7854L is a high-speed, low-power, 12-bit ADC that operates from a single 3 V or 5 V power supply. The AD7854 is optimized for speed, while the AD7854L is optimized for low power. The ADC powers up with a set of default conditions and can be operated as a read-only ADC. It contains self-calibration and system calibration options to ensure accurate operation over time and temperature. The AD7854 has a throughput rate of 200 kHz, while the AD7854L has a throughput rate of 100 kHz. The input track-and-hold acquires a signal in 500 ns and features a pseudo-differential sampling scheme. The AD7854 and AD7854L input voltage range is 0 to V (unipolar) and -V/2 to V/2, centered at V/2 (bipolar). The coding is straight binary in unipolar mode and twos complement in bipolar mode. Input signal range is to the supply, and the part is capable of converting full-power signals to 100 kHz. CMOS construction ensures low power dissipation of typically 5.4 mW for normal operation and 3.6 μW in power-down mode. The part is available in 28-lead, 0.6-inch wide dual-in-line package (DIP), 28-lead small outline (SOIC), and 28-lead small shrink outline (SSOP) packages.
Features
Operation with either 3 V or 5 V power supplies
Flexible power management options including automatic power-down after conversion
Operates with reference voltages from 1.2 V to AVDD
Analog input ranges from 0 V to AVDD
Self-calibration and system calibration
Versatile parallel I/O port
Lower power version AD7854L
Applications
Battery-Powered Systems (Personal Digital Assistants, Medical Instruments, Mobile Communications)
Pen Computers
Instrumentation and Control Systems
High Speed Modems
The AD7854/AD7854L is a high-speed, low-power, 12-bit ADC that operates from a single 3 V or 5 V power supply. The AD7854 is optimized for speed, while the AD7854L is optimized for low power. The ADC powers up with a set of default conditions and can be operated as a read-only ADC. It contains self-calibration and system calibration options to ensure accurate operation over time and temperature. The AD7854 has a throughput rate of 200 kHz, while the AD7854L has a throughput rate of 100 kHz. The input track-and-hold acquires a signal in 500 ns and features a pseudo-differential sampling scheme. The AD7854 and AD7854L input voltage range is 0 to V (unipolar) and -V/2 to V/2, centered at V/2 (bipolar). The coding is straight binary in unipolar mode and twos complement in bipolar mode. Input signal range is to the supply, and the part is capable of converting full-power signals to 100 kHz. CMOS construction ensures low power dissipation of typically 5.4 mW for normal operation and 3.6 μW in power-down mode. The part is available in 28-lead, 0.6-inch wide dual-in-line package (DIP), 28-lead small outline (SOIC), and 28-lead small shrink outline (SSOP) packages.
Features
Operation with either 3 V or 5 V power supplies
Flexible power management options including automatic power-down after conversion
Operates with reference voltages from 1.2 V to AVDD
Analog input ranges from 0 V to AVDD
Self-calibration and system calibration
Versatile parallel I/O port
Lower power version AD7854L
Applications
Battery-Powered Systems (Personal Digital Assistants, Medical Instruments, Mobile Communications)
Pen Computers
Instrumentation and Control Systems
High Speed Modems
Analog Devices Inc. AD7854ARS-REEL technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. AD7854ARS-REEL.
- Contact PlatingLead, Tin
- Mounting TypeSurface Mount
- Package / Case28-SSOP (0.209, 5.30mm Width)
- Surface MountYES
- Number of Pins28
- Operating Temperature-40°C~85°C
- PackagingTape & Reel (TR)
- JESD-609 Codee0
- Pbfree Codeno
- Part StatusObsolete
- Moisture Sensitivity Level (MSL)1 (Unlimited)
- Number of Terminations28
- ECCN CodeEAR99
- SubcategoryAnalog to Digital Converters
- Max Power Dissipation30mW
- TechnologyCMOS
- Terminal PositionDUAL
- Terminal FormGULL WING
- Peak Reflow Temperature (Cel)240
- Number of Functions1
- Supply Voltage3.6V
- Terminal Pitch0.65mm
- Time@Peak Reflow Temperature-Max (s)30
- Base Part NumberAD7854
- Pin Count28
- Operating Supply Voltage5V
- PolarityBipolar, Unipolar
- ConfigurationS/H-ADC
- Number of Channels1
- InterfaceParallel, SPI
- Max Supply Voltage5.5V
- Min Supply Voltage3V
- Power Dissipation25mW
- Number of Bits12
- Input TypePseudo-Differential
- ArchitectureSAR
- Converter TypeADC, SUCCESSIVE APPROXIMATION
- Supply TypeAnalog, Digital
- Reference TypeExternal, Internal
- Data InterfaceSPI
- Resolution1.5 B
- Sampling Rate200 ksps
- Voltage - Supply, Analog3V~5.5V
- Voltage - Supply, Digital3V~5.5V
- Number of Analog In Channels1
- Sampling Rate (Per Second)200k
- Output Bit CodeBINARY, 2'S COMPLEMENT BINARY
- Power Consumption25mW
- Linearity Error-Max (EL)0.0244%
- Integral Nonlinearity (INL)1 LSB
- Sample and Hold / Track and HoldTRACK
- Input Capacitance20pF
- Ratio - S/H:ADC1:1
- Output FormatPARALLEL, WORD
- Signal to Noise Ratio (SNR)71 dB
- Differential Nonlinearity1 LSB
- Conversion Time-Max4.6μs
- Height Seated (Max)2mm
- Width5.3mm
- Radiation HardeningNo
- RoHS StatusNon-RoHS Compliant
- Lead FreeContains Lead
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