AD7705BNZ

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> Analog-to-Digital Converters - ADC

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Series Information for AD7705BNZ - Analog Devices

Features

  • feature
    AD7705: 2 fully differential input channel ADCs AD7706: 3 pseudo differential input channel ADCs 16 bits no missing codes 0.003% nonlinearity Programmable gain front end: gains from 1 to 128 3-wire serial interface SPIu00ae-, QSPIu2122-, MICROWIREu2122-, and DSP-compatible Schmitt-trigger input on SCLK Ability to buffer the analog input 2.7 V to 3.3 V or 4.75 V to 5.25 V operation Power dissipation 1 mW maximum @ 3 V Standby current 8 u03bcA maximum 16-lead PDIP, 16-lead SOIC, and 16-lead TSSOP packages

Description

ADC 16BIT SERIAL DIP16

The AD7705/AD7706 are complete analog front ends for low frequency measurement applications. These 2-/3-channel devices can accept low level input signals directly from a transducer and produce serial digital output. The devices employ a Σ-Δ 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 pro- grammed via an on-chip control register, allowing adjustment of the filter cutoff and output update rate. The AD7705/AD7706 devices operate from a single 2.7 V to 3.3 V or 4.75 V to 5.25 V supply. The AD7705 features two fully differential analog input channels; the AD7706 features three pseudo differential input channels. Both devices feature a differential reference input. Input signal ranges of 0 mV to 20 mV through 0 V to 2.5 V can be incorporated on both devices when operating with a VDD of 5 V and a reference of 2.5 V. They can also handle bipolar input signal ranges of ±20 mV through ±2.5 V, which are referenced to the AIN(−) inputs on the AD7705 and to the COMMON input on the AD7706.

Specifications

Resolution (Bits):
16bit
Sampling Rate:
500SPS
Input Channel Type:
Differential
Data Interface:
Serial
Supply Voltage Type:
-
Supply Voltage Min:
4.75V
Supply Voltage Max:
5.25V
ADC / DAC Case Style:
DIP
No. of Pins:
16Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
Dual 16-Bit Sigma-Delta ADCs
Automotive Qualification Standard:
-
MSL:
MSL 3 - 168 hours
SVHC:
No SVHC (07-Jul-2017)
A/D / D/A Features:
CMOS Internal Reference Serial O/P Sigma Delta
Base Number:
7705
Conversion Time:
1µs
IC Case Style:
DIP
IC Generic Number:
7705
Linearity Error:
0.003%
Logic Function Number:
7705
No. of Channels:
2Channels
Operating Temperature Range:
-40°C to +85°C
Power Dissipation Ptot Max:
450mW
Supply Current:
1.3mA
Supply Voltage Range - Analogue:
2.7V to 3.3V 4.75V to 5.25V

Alternate Descriptions

RS Components
AD7705BNZ
Newark Electronics
Analogue to Digital Converter, 16 bit, 500 SPS, 4.75 V, 5.25 V, DIP RoHS Compliant: Yes
Richardson RFPD
CONVERTER - ADC
Conrad
Integrated circuits from leading manufacturers. Please read our extensive documentation, which is free to download.
RS Components UK
AD7705BNZ
RS Components DE
16-Bit-Bit ADC AD7705BNZ Differentiell SPI, PDIP 16-Pin 2 Digital Interface Typ : Seriell (SPI) Montage-Typ : Durchsteckmontage Abtastrate : 0.5ksps Architektur : Delta Sigma Versorgungsspannung einzeln typ. : 3 V, 5 V Eingangssignal-Typ : Differential Integrale Nichtlinearität : ±0.003%FSR Abmessungen : 20.07 x 6.35 x 3.3mm, Analog Devices
RS Components HK
AD7705BNZ
RS Components JP
半導体,A/Dコンバータ,AD7705BNZ,A
RS Components FR
CONVERTISSEUR AD7705BNZ
RS Components CN
AD7705BNZ
RS Components ES
AD7705BNZ
RS Components NL
AD7705BNZ
RS Components NO
AD7705BNZ
RS Components US
AD7705BNZ
RS Components SG
AD7705BNZ
RS Components TW
I.c. Ad7705bn