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Utsource certified used parts
Las piezas usadas certificadas por Utsource ofrecen las siguientes garantías:
1. Utsource inspeccionará los productos, incluida la inspección de apariencia (sin daños serios en la apariencia), seleccionará proveedores calificados y honestos, y asegurará una tasa de calificación del 98%.
2. Algunas partes son probadas por la máquina.
3. Las piezas certificadas de Utsource pueden devolverse y reembolsarse incondicionalmente dentro de los 60 días.
Descripción de producto
The AD7730L is a complete analog front end for weigh-scale and pressure measurement applications. The device accepts low-level signals directly from a transducer and outputs a serial digital word. The input signal is applied to a proprietary programmable gain front end based around an analog modulator. The modulator output is processed by a low pass programmable digital filter, allowing adjustment of filter cutoff, output rate and settling time. The part features two buffered differential programmable gain analog inputs as well as a differential reference input. The device operates from a single +5 V supply. It accepts four unipolar analog input ranges: 0 mV to +10 mV, +20 mV, +40 mV and +80 mV and four bipolar ranges: ±10 mV, ±20 mV, ±40 mV and ±80 mV. The peak-to-peak resolution achievable directly from the part is 1 in 110,000 counts. An on-chip 6-bit DAC allows the removal of TARE voltages. Clock signals for synchronizing ac excitation of the bridge are also provided. The serial interface on the part can be configured for three-wire operation and is compatible with microcontrollers and digital signal processors. The AD7730L contains self-calibration and system calibration options, and features an offset drift of less than 5 nV/°C and a gain drift of less than 3 ppm/°C. The part is available in a 24-lead SOIC and 24-lead TSSOP package. It is a lower power version of the AD7730 (approximately 1/3 the power).
Todos los nombres de productos, marcas registradas, marcas y logotipos utilizados en este sitio son propiedad de sus respectivos dueños. La representación, descripción o venta de productos con estos nombres, marcas comerciales, marcas y logotipos es solo para fines de identificación y no pretende indicar ninguna afiliación o autorización por parte de ningún titular de derechos.
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KEY FEATURES Resolution of 230,000 Counts (Peak-to-Peak) Offset Drift: 5 nV/C Gain Drift: 2 ppm/C Line Frequency Rejection: >150 dB Buffered Differential Inputs Programmable Filter Cutoffs Specified for Drift Over Time Operates with Reference Voltages 5 V
ADDITIONAL FEATURES Two-Channel Programmable Gain Front End On-Chip DAC for Offset/TARE Removal FASTStepTM Mode or DC Excitation Single Supply Operation
GENERAL DESCRIPTION The is a complete analog front end for weigh-scale and pressure measurement applications. The device accepts lowlevel signals directly from a transducer and outputs a serial digital word. The input signal is applied to a proprietary programmable gain front end based around an analog modulator.
The modulator output is processed by a low pass programmable digital filter, allowing adjustment of filter cutoff, output rate and settling time.
The part features two buffered differential programmable gain analog inputs as well as a differential reference input. The part operates from a single +5 V supply. It accepts four unipolar analog input ranges: to +10 mV, +20 mV, +40 mV and +80 mV and four bipolar ranges: ± 10 mV, ± 20 mV, 40 mV and ± 80 mV. The peak-to-peak resolution achievable directly from the part in 230,000 counts. An on-chip 6-bit DAC allows the removal of TARE voltages. Clock signals for synchronizing ac excitation of the bridge are also provided.
The serial interface on the part can be configured for three-wire operation and is compatible with microcontrollers and digital signal processors. The AD7730 contains self-calibration and system calibration options, and features an offset drift of less than 5 nV/°C and a gain drift of less than 2 ppm/°C.
The AD7730 is available a 24-pin plastic DIP, a 24-lead SOIC and 24-lead TSSOP package. The AD7730L is available a 24-lead SOIC and 24-lead TSSOP package.
NOTE The description of the functions and operation given in this data sheet apply to both the AD7730 and AD7730L. Specifications and performance parameters differ for the parts. Specifications for the AD7730L are outlined in Appendix A.
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
AD7730SPECIFICATIONS (AVDD +5 V, DVDD +5 V; REF IN(+) = AVDD; REF IN() = AGND = DGND 0 V; fCLK = 4.9152 MHz. All specifications TMIN to TMAX unless otherwise noted.)
STATIC PERFORMANCE (CHP 1) No Missing Codes2 Output Noise and Update Rates2Integral Nonlinearity Offset Error2 Offset Drift vs. Temperature2 Offset Drift vs. Time4 Positive Full-Scale Error2, 5 Positive Full-Scale Drift 6, 7 Positive Full-Scale Drift vs Time4 Gain Error2, 8 Gain Drift vs. 6, 9 Gain Drift vs. Time4 Bipolar Negative Full-Scale Error2 Negative Full-Scale Drift vs. Temp2, 6
Common-Mode Rejection (CMR) Analog Input DC Bias Current2 Analog Input DC Bias Current Drift2 Analog Input DC Offset Current2 Analog Input DC Offset Current Drift2
Offset Error Offset Drift vs. Temperature6 Offset Drift vs. Time4 Positive Full-Scale Error5 Positive Full-Scale Drift vs. Temp6, 7 Positive Full-Scale Drift vs. Time4 Gain Error8 Gain Drift vs. Temperature6, 9 Gain Drift vs. Time4
Reference Input REF IN(+) REF IN() Voltage REF IN(+) REF IN() Voltage Absolute/Common-Mode Voltage13
Offset Error and Offset Drift Refer to Both Unipolar Offset and Bipolar Zero ErrorsMeasured with Zero Differential Voltage At DC. Measured with Zero Differential Voltage At DC. Measured with Zero Differential Voltage
From 51 Hz From 61 Hz From 51 Hz From 61 Hz Assuming 5 V Reference with HIREF Bit Set Appropriately Gain = 250 Gain = 125 Gain = 62.5 Gain = 31.25
HIREF Bit of Mode Register = 0 HIREF Bit of Mode Register 1 NO REF Bit Active If VREF Below This Voltage NO REF Bit Inactive If VREF Above This Voltage
LOGIC INPUTS Input Current All Inputs Except SCLK and MCLK IN VINL, Input Low Voltage VINL, Input Low Voltage VINH, Input High Voltage SCLK Only (Schmitt Triggered Input) VT+ VT VT+ VT VT+ VT MCLK IN Only VINL, Input Low Voltage VINL, Input Low Voltage VINH, Input High Voltage VINH, Input High Voltage
LOGIC OUTPUTS (Including MCLK OUT) VOL, Output Low VoltagePOWER REQUIREMENTS Power Supply Voltages AVDD AGND Voltage DVDD Voltage Power Supply Currents AVDD Current (Normal Mode) AVDD Current (Normal Mode) DVDD Current (Normal Mode) DVDD Current (Normal Mode) AVDD + DVDD Current (Standby Mode) Power Dissipation Normal Mode
DVDD +5 V DVDD +3 V DVDD +5 V DVDD +3 V DVDD +5 V DVDD +3 V DVDD +5 V DVDD +3 V DVDD +5 V DVDD +3 VISINK 800 A Except for MCLK +5 V ISINK 100 A Except for MCLK +3 V ISOURCE 200 A Except for MCLK +5 V ISOURCE 100 A Except for MCLK +3 V
With AGND 0 V External MCLK. Digital I/Ps V or DVDD All Input Ranges Except +10 mV and 10 mV Input Ranges +10 mV and 10 mV Only DVDD 3.3 V DVDD 5.25 V Typically 10 A. External MCLK V or DVDD AVDD = DVDD +5 V. Digital I/Ps V or DVDD All Input Ranges Except +10 mV and 10 mV Input Ranges +10 mV and 10 mV Only Typically 50 W. External MCLK V or DVDD
Algún número de pieza del mismo fabricante
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2011 reseñas de compradores de Spain
Raphael Mayor
Length of registration:9 years
Service was great,Parts arrived when promised.If I do need parts in a future, you are on my list.Thank you
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01/09/2023
JOSE
Length of registration:3 years
Order came in time
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10/21/2022
Marco
Length of registration:3 years
excellent customer service-highly recommended.All okay. Would buy again.
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09/26/2022
Txema Arce
Length of registration:12 years
Entrega bastante rapida .Bien empaquetado
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11/02/2017
karl dungs
Length of registration:7 years
todo ok
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11/23/2016
Patxi Mugica Ramos
Length of registration:1 years
All OK
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11/09/2016
Jose M. Sanchez
Length of registration:10 years
OK
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11/03/2016
Enrique (Edificio AUDIOTEC)
Length of registration:7 years
Probados y todo ok
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10/18/2016
Florin Matei
Length of registration:7 years
es correcto.Gracias!
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10/03/2016
Manuel Segura
Length of registration:8 years
Llegada perfecta
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0
Responder0
09/23/2016
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AD7730LBRZ
AD7730LBRZ tiene varias marcas en todo el mundo que pueden tener nombres alternativos para AD7730LBRZ debido a diferencias o adquisiciones regionales. AD7730LBRZ también se conoce con los siguientes nombres:
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