Analog Devices Inc. AD7703BRZ
- Part Number:
- AD7703BRZ
- Manufacturer:
- Analog Devices Inc.
- Ventron No:
- 3010876-AD7703BRZ
- Description:
- IC ADC 20BIT LC2MOS MONO 20SOIC
- Datasheet:
- AD7703BRZ
Description
The AD7703 is a 20-bit analog-to-digital converter (ADC) that utilizes a sigma-delta conversion technique. It continuously samples the analog input using an analog modulator, with the mean output duty cycle proportional to the input signal. The modulator output is processed by a six-pole Gaussian low-pass digital filter, updating the output data register with 16-bit binary words at rates up to 4 kHz. The sampling rate, filter corner frequency, and output word rate are set by a master clock input, which can be supplied externally or generated by an on-chip crystal-controlled clock oscillator.
The AD7703 exhibits excellent inherent linearity, with endpoint accuracy ensured by self-calibration of zero and full scale, which can be initiated at any time. This self-calibration scheme can also be extended to null system offset and gain errors in the input channel.
The output data is accessed through a flexible serial port, featuring an asynchronous mode compatible with UARTs and two synchronous modes suitable for interfacing with shift registers or the serial ports of industry-standard microcontrollers.
Features
Monolithic 16-bit ADC
0.0015% linearity error
On-chip self-calibration circuitry
Programmable low-pass filter (0.1 Hz to 10 Hz corner frequency)
0 V to 2.5 V or ±2.5 V analog input range
4 KSPS output data rate
Flexible serial interface
Ultralow power consumption
Applications
Industrial process control
Weigh scales
Portable instrumentation
Remote data acquisition
The AD7703 is a 20-bit analog-to-digital converter (ADC) that utilizes a sigma-delta conversion technique. It continuously samples the analog input using an analog modulator, with the mean output duty cycle proportional to the input signal. The modulator output is processed by a six-pole Gaussian low-pass digital filter, updating the output data register with 16-bit binary words at rates up to 4 kHz. The sampling rate, filter corner frequency, and output word rate are set by a master clock input, which can be supplied externally or generated by an on-chip crystal-controlled clock oscillator.
The AD7703 exhibits excellent inherent linearity, with endpoint accuracy ensured by self-calibration of zero and full scale, which can be initiated at any time. This self-calibration scheme can also be extended to null system offset and gain errors in the input channel.
The output data is accessed through a flexible serial port, featuring an asynchronous mode compatible with UARTs and two synchronous modes suitable for interfacing with shift registers or the serial ports of industry-standard microcontrollers.
Features
Monolithic 16-bit ADC
0.0015% linearity error
On-chip self-calibration circuitry
Programmable low-pass filter (0.1 Hz to 10 Hz corner frequency)
0 V to 2.5 V or ±2.5 V analog input range
4 KSPS output data rate
Flexible serial interface
Ultralow power consumption
Applications
Industrial process control
Weigh scales
Portable instrumentation
Remote data acquisition
Analog Devices Inc. AD7703BRZ technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. AD7703BRZ.
- Factory Lead Time8 Weeks
- Lifecycle StatusPRODUCTION (Last Updated: 1 week ago)
- Contact PlatingTin
- Mounting TypeSurface Mount
- Package / Case20-SOIC (0.295, 7.50mm Width)
- Surface MountYES
- Operating Temperature-40°C~85°C
- PackagingTube
- JESD-609 Codee3
- Pbfree Codeno
- Part StatusActive
- Moisture Sensitivity Level (MSL)3 (168 Hours)
- Number of Terminations20
- ECCN CodeEAR99
- Max Power Dissipation37mW
- TechnologyCMOS
- Terminal FormGULL WING
- Peak Reflow Temperature (Cel)260
- Number of Functions1
- Supply Voltage5V
- Reflow Temperature-Max (s)30
- Base Part NumberAD7703
- Pin Count20
- PolarityBipolar, Unipolar
- ConfigurationS/H-ADC
- Number of Channels1
- Max Supply Voltage5.5V
- Min Supply Voltage4.5V
- Power Dissipation37mW
- Number of Bits20
- Input TypeSingle Ended
- Min Input Voltage2.5V
- ArchitectureSigma-Delta
- Max Input Voltage2.5V
- Converter TypeADC, DELTA-SIGMA
- Supply TypeDual
- Reference TypeExternal
- Data InterfaceSPI
- Resolution2.5 B
- Sampling Rate16 ksps
- Number of Analog In Channels1
- Sampling Rate (Per Second)4k
- Max Dual Supply Voltage5.5V
- Output Bit CodeBINARY, OFFSET BINARY
- Power Consumption25mW
- Min Dual Supply Voltage4.5V
- Sample and Hold / Track and HoldSAMPLE
- Dual Supply Voltage5V
- Input Capacitance20pF
- Ratio - S/H:ADC1:1
- Output FormatSERIAL
- Negative Supply Voltage-Nom-5V
- Differential Nonlinearity0.5 LSB
- Height2.35mm
- Length13mm
- Width7.6mm
- Radiation HardeningNo
- REACH SVHCNo SVHC
- RoHS StatusROHS3 Compliant
- Lead FreeContains Lead
The three parts on the right have similar specifications to AD7703BRZ.
-
ImagePart NumberManufacturerFactory Lead TimeLifecycle StatusContact PlatingMounting TypePackage / CaseSurface MountOperating TemperaturePackagingJESD-609 CodePbfree CodePart StatusMoisture Sensitivity Level (MSL)Number of TerminationsECCN CodeMax Power DissipationTechnologyTerminal FormPeak Reflow Temperature (Cel)Number of FunctionsSupply VoltageReflow Temperature-Max (s)Base Part NumberPin CountPolarityConfigurationNumber of ChannelsMax Supply VoltageMin Supply VoltagePower DissipationNumber of BitsInput TypeMin Input VoltageArchitectureMax Input VoltageConverter TypeSupply TypeReference TypeData InterfaceResolutionSampling RateNumber of Analog In ChannelsSampling Rate (Per Second)Max Dual Supply VoltageOutput Bit CodePower ConsumptionMin Dual Supply VoltageSample and Hold / Track and HoldDual Supply VoltageInput CapacitanceRatio - S/H:ADCOutput FormatNegative Supply Voltage-NomDifferential NonlinearityHeightLengthWidthRadiation HardeningREACH SVHCRoHS StatusLead FreeSubcategoryReach Compliance CodeQualification StatusLinearity Error-Max (EL)Height Seated (Max)MountTerminal PitchNominal Supply CurrentTerminal FinishTerminal PositionView Compare
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AD7703BRZ8 WeeksPRODUCTION (Last Updated: 1 week ago)TinSurface Mount20-SOIC (0.295, 7.50mm Width)YES-40°C~85°CTubee3noActive3 (168 Hours)20EAR9937mWCMOSGULL WING26015V30AD770320Bipolar, UnipolarS/H-ADC15.5V4.5V37mW20Single Ended2.5VSigma-Delta2.5VADC, DELTA-SIGMADualExternalSPI2.5 B16 ksps14k5.5VBINARY, OFFSET BINARY25mW4.5VSAMPLE5V20pF1:1SERIAL-5V0.5 LSB2.35mm13mm7.6mmNoNo SVHCROHS3 CompliantContains Lead-----------
-
--Lead, TinSurface Mount20-SOIC (0.295, 7.50mm Width)YES-40°C~85°CTubee0noObsolete3 (168 Hours)20EAR9937mWCMOSGULL WING24015V30AD770320Bipolar, UnipolarS/H-ADC15.5V4.5V37mW20Single Ended2.5VSigma-Delta2.5VADC, DELTA-SIGMADualExternalSPI2.5 B16 ksps14k5.5VBINARY, OFFSET BINARY25mW4.5VSAMPLE5V20pF1:1SERIAL-5V0.5 LSB--7.5mm-No SVHCNon-RoHS CompliantContains LeadAnalog to Digital Convertersnot_compliantNot Qualified0.003%2.65mm-----
-
8 WeeksPRODUCTION (Last Updated: 1 week ago)TinThrough Hole20-DIP (0.300, 7.62mm)--40°C~85°CTubee3noActive1 (Unlimited)20EAR9937mWCMOS--15V-AD770320Bipolar, UnipolarS/H-ADC15.5V4.5V37mW20Single Ended2.5VSigma-Delta2.5VADC, DELTA-SIGMADualExternalSPI2.5 B16 ksps14k5.5VBINARY, OFFSET BINARY25mW4.5VSAMPLE5V20pF1:1SERIAL-5V0.5 LSB4.57mm7.11mm5mmNoNo SVHCROHS3 CompliantContains Lead---0.003%-Through Hole2.54mm2.7mA--
-
8 WeeksPRODUCTION (Last Updated: 1 week ago)-Surface Mount20-SOIC (0.295, 7.50mm Width)YES-40°C~85°CTubee3noActive3 (168 Hours)20EAR9937mWCMOSGULL WING26015V30AD770320Bipolar, UnipolarS/H-ADC15.5V4.5V37mW20Single Ended2.5VSigma-Delta2.5VADC, DELTA-SIGMA-ExternalSPI2.5 B16 ksps14k5.5VBINARY, OFFSET BINARY25mW4.5VSAMPLE5V20pF1:1SERIAL-5V0.5 LSB2.35mm13mm7.6mm-No SVHCROHS3 CompliantContains Lead--Not Qualified-----Matte Tin (Sn)DUAL
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