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Series Information for AD7811YRZ - Analog Devices


  • feature
    10-Bit ADC with 2.3 u242es Conversion Time The AD7811 has Four Single-Ended Inputs that Can Be Configured as Three Pseudo Differential Inputs with Respect to a Common, or as Two Inde- pendent Pseudo Differential Channels The AD7812 has Eight Single-Ended Inputs that Can Be Configured as Seven Pseudo Differential Inputs with Respect to a Common, or as Four Independent Pseudo Differential Channels Onboard Track and Hold Onboard Reference 2.5 V u2d1e 2.5% Operating Supply Range: 2.7 V to 5.5 V Specifications at 2.7 Vu20133.6 V and 5 V u2d1e 10% DSP-/Microcontroller-Compatible Serial Interface High Speed Sampling and Automatic Power-Down Modes Package Address Pin on the AD7811 and AD7812 Allows Sharing of the Serial Bus in Multipackage Applications Input Signal Range: 0 V to VREF Reference Input Range: 1.2 V to VDD Qualified for Automotive Applications



The AD7811 and AD7812 are high speed, low power, 10-bit A/D converters that operate from a single 2.7 V to 5.5 V supply. The devices contain a 2.3 µs successive approximation A/D converter, an on-chip track/hold amplifier, a 2.5 V on-chip refer- ence and a high speed serial interface that is compatible with the serial interfaces of most DSPs (Digital Signal Processors) and microcontrollers. The user also has the option of using an exter- nal reference by connecting it to the VREF pin and setting the EXTREF bit in the control register. The VREF pin may be tied to VDD. At slower throughput rates the power-down mode may be used to automatically power down between conversions. The control registers of the AD7811 and AD7812 allow the input channels to be configured as single-ended or pseudo differential. The control register also features a software convert start and a software power-down. Two of these devices can share the same serial bus and may be individually addressed in a multipackage application by hardwiring the device address pin. The AD7811 is available in a small, 16-lead 0.3" wide, plastic dual-in-line package (mini-DIP), in a 16-lead 0.15" wide, Small Outline IC (SOIC) and in a 16-lead, Thin Shrink Small Out- line Package (TSSOP). The AD7812 is available in a small, 20-lead 0.3" wide, plastic dual-in-line package (mini-DIP), in a 20-lead, Small Outline IC (SOIC) and in a 20-lead, Thin Shrink Small Outline Package (TSSOP).


Resolution (Bits):
Sampling Rate:
Input Channel Type:
Pseudo 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:
Quad 10-Bit SAR ADCs
Automotive Qualification Standard:
RoHS Phthalates Compliant:
MSL 1 - Unlimited
No SVHC (07-Jul-2017)
Supply Current:

Alternate Descriptions

Newark Electronics
Analogue to Digital Converter, 10 bit, 350 kSPS, Single, 2.7 V, 5.5 V, SOIC RoHS Compliant: Yes
Richardson RFPD