Series: -
Number of Converters: 1
Voltage Supply Source: Single Supply
Mounting Type: Surface Mount
Operating Temperature: -40°C ~ 85°C
Power Dissipation (Max): 1mW
Number of Bits: 16
Packaging: TubeAlternate Packaging
Package / Case: 16-SOIC (0.295", 7.50mm Width)
Number of Inputs and Type: 2 Differential, Unipolar; 2 Differential, Bipolar
Manufacturer: Analog Devices Inc
Data Interface: DSP, MICROWIRE?, QSPI?, Serial, SPI?
Supplier Device Package: 16-SOIC W
Sampling Rate (Per Second): 500
DescriptionThe AD7705BRZ is one member of the AD7705 series.The AD7705 is complete analog front end for low frequency measurement applications.These two-/three-channel devices can accept low level input signals directly from a transducer and produce a serial digital output.They employ a sigmadelta conversion technique to realize up to 16 bits of no missing codes performance. The selected input signal is applied to a proprietary programmable gain front end based around an analog modulator. The modulator output is processed by an on-chip digital filter. The first notch of this digital filter can be programmed via an on-chip control register allowing adjustment of the filter cutoff and output update rate.
Features of the AD7705BRZ are:(1)two fully differential input channel ADCs; (2)programmable gain front end gains from 1 to 128; (3)ability to buffer the analog input; (4)2.7 V to 3.3 V or 4.75 V to 5.25 V operation; (5)power dissipation 1 mW max @ 3V; (6)standby current 8 A max; (7)16-lead DIP, 16-lead SOIC and TSSOP Packages.The part features excellent static performance specifications with 16 bits, no missing codes,0.003% accuracy and low rms noise (<600 nV).Endpoint errors and the effects of temperature drift are eliminated by on-chip calibration options, which remove zero-scale and full-scale errors.
The absolute maximum ratings of the AD7705BRZ can be summarized as:(1)VDD to GND:0.3 to +7V;(2)analog input voltage to GND:0.3 V to VDD + 0.3V;(3)operating temperature range:-40 to +85;(4)storage temperature range:65 to +150;(5)lead temperature,soldering:215.Stresses above those listed under absolute maximum ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.The Communications Register is an 8-bit register from which data can either be read or to which data can be written.All communications to the part must start with a write operation to the communications register.The data written to the communications register determines whether the next operation is a read or write operation and to which register this operation takes place.Once the subsequent read or write operation to the selected register is complete, the interface returns to where it expects a write operation to the communications register.
Parameters: | Technical/Catalog Information | AD7705BRZ |
| Vendor | Analog Devices Inc |
| Category | Integrated Circuits (ICs) |
| Number of Bits | 16 |
| Package / Case | 16-SOIC (3.9mm Width) |
| Data Interface | Serial |
| Packaging | Tube |
| Sampling Rate (Per Second) | 500 |
| Operating Temperature | -40°C ~ 85°C |
| Voltage Supply Source | Single |
| Number of Inputs and Type | 2 Differential, Unipolar |
| Number of Converters | 1 |
| Power Dissipation (Max) | 1mW |
| Drawing Number | * |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Other Names | AD7705BRZ
AD7705BRZ
|
AD7705BRZ Data Sheet
