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Series Information for AD7711ANZ - Analog Devices


  • feature
    Charge-Balancing ADC 24 Bits, No Missing Codes u2d1e0.0015% Nonlinearity 2-Channel Programmable Gain Front End Gains from 1 to 128 1 Differential Input 1 Single-Ended Input Low-Pass Filter with Programmable Filter Cutoffs Ability to Read/Write Calibration Coefficients RTD Excitation Current Sources Bidirectional Microcontroller Serial Interface Internal/External Reference Option Single- or Dual-Supply Operation Low Power (25 mW typ) with Power-Down Mode (7 mW typ)



The AD7711 is a complete analog front end for low frequency measurement applications. The device accepts low level signals directly from a transducer and outputs a serial digital word. It employs a ⌺-⌬ conversion technique to realize up to 24 bits of no missing codes performance. The input signal is applied to a proprietary programmable gain front end based around an ana- log modulator. The modulator output is processed by an on-chip digital filter. The first notch of this digital filter can be pro- grammed via the on-chip control register, allowing adjustment of the filter cutoff and settling time. The part features one differential analog input and one single- ended analog input as well as a differential reference input. Normally, one of the input channels will be used as the main channel with the second channel used as an auxiliary input to periodically measure a second voltage. It can be operated from a single supply (by tying the VSS pin to AGND), provided that the input signals on the analog inputs are more positive than –30 mV. By taking the VSS pin negative, the part can convert signals down to –VREF on its inputs. The part provides two current sources that can be used to provide excitation in 3-wire and 4-wire RTD configurations. The AD7711 thus performs all signal conditioning and conversion for a single- or dual-channel system. AD7711 The AD7711 is ideal for use in smart, microcontroller based systems. Gain settings, signal polarity, input channel selection, and RTD current control can be configured in software using the bidirectional serial port. The AD7711 contains self- calibration, system calibration, and background calibration options, and also allows the user to read and write the on-chip calibration registers. CMOS construction ensures low power dissipation, and a software programmable power-down mode reduces the standby power consumption to only 7 mW typical. The part is available in a 24-lead, 0.3-inch-wide, plastic and hermetic dual-in-line pack- age (DIP) as well as a 24-lead small outline (SOIC) package.


Resolution (Bits):
Sampling Rate:
Input Channel Type:
Differential Single Ended
Data Interface:
Supply Voltage Type:
Supply Voltage Min:
Supply Voltage Max:
ADC / DAC Case Style:
No. of Pins:
Operating Temperature Min:
Operating Temperature Max:
Product Range:
Dual 24-Bit Sigma-Delta ADCs
Automotive Qualification Standard:
RoHS Phthalates Compliant:
No SVHC (07-Jul-2017)
Base Number:
IC Case Style:
No. of Channels:
Operating Temperature Range:
-40°C to +85°C
Supply Current:
Supply Voltage Range:
4.75V to 5.25V 5V to 10V 10.5V
Supply Voltage Range - Analogue:
5V to 10V
Supply Voltage Range - Digital:
4.75V to 5.25V
Termination Type:
Through Hole

Alternate Descriptions

RS Components
ADC Single Delta-Sigma 19.5KSPS 24-Bit
Richardson RFPD
RS Components UK
ADC Single Delta-Sigma 19.5KSPS 24-Bit
RS Components DE
24-Bit-Bit ADC AD7711ANZ Differentiell Seriell, PDIP 24-Pin 2 Montage-Typ : Durchsteckmontage Abtastrate : 19.5ksps Architektur : Delta Sigma Versorgungsspannung einzeln typ. : 5 V, 10 V Eingangssignal-Typ : Differential, Single Ended Integrale Nichtlinearität : ±0.003%FSR Versorgungsspannung bipolar typ. : ±5 V, -5 → 10 V Abmessungen : 31.75 x 6.35 x 3.3mm, Analog Devices
RS Components HK
ADC Single Delta-Sigma 19.5KSPS 24-Bit
RS Components JP
RS Components FR
CAN simple delta-sigma 19,5Ksps 24bits
RS Components CN
ADC Single Delta-Sigma 19.5KSPS 24-Bit
RS Components ES
ADC Single Delta-Sigma 19.5KSPS 24-Bit
RS Components NL
ADC Single Delta-Sigma 19.5KSPS 24-Bit
RS Components NO
ADC Single Delta-Sigma 19.5KSPS 24-Bit
RS Components US
ADC Single Delta-Sigma 19.5KSPS 24-Bit
RS Components SG
ADC Single Delta-Sigma 19.5KSPS 24-Bit
RS Components TW
ADC Single Delta-Sigma 19.5KSPS 24-Bit