AD7605-4 Series

4-Channel DAS with 16-Bit, Bipolar Input, Simultaneous Sampling ADC

Catalog

4-Channel DAS with 16-Bit, Bipolar Input, Simultaneous Sampling ADC

Part	Voltage - Supply, Digital [Min]	Voltage - Supply, Digital [Max]	Number of Inputs	Package / Case	Input Type	Reference Type	Mounting Type	Number of A/D Converters	Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Ratio - S/H:ADC	Number of Bits	Data Interface	Sampling Rate (Per Second)	Supplier Device Package	Voltage - Supply, Analog	Features	Architecture
Analog Devices AD7605-4BSTZ	2.3 V	5.25 V	4	64-LQFP	Single Ended	External Internal	Surface Mount	1	S/H-MUX-ADC	85 °C	-40 °C	1:1	16	Parallel SPI	300 kHz	64-LQFP (10x10)	5 V	Simultaneous Sampling	SAR

Catalog

4-Channel DAS with 16-Bit, Bipolar Input, Simultaneous Sampling ADC

Key Features

• 4 simultaneously sampled inputs

• True bipolar analog input ranges: ±10 V (maximum), ±5 V (maximum)

• Single 5 V analog supply and 2.5 V to 5 V VDRIVE(nominal)

• Fully integrated data acquisition solutionAnalog input clamp protectionInput buffer with 1 MΩ analog input impedanceSecond-order antialiasing analog filterOn-chip accurate reference and reference buffer16-bit ADC with 300 kSPS on all channels

• Analog input clamp protection

• Input buffer with 1 MΩ analog input impedance

• Second-order antialiasing analog filter

• On-chip accurate reference and reference buffer

• 16-bit ADC with 300 kSPS on all channels

• Flexible parallel/serial interfaceSerial peripheral interface (SPI)/QSPI™/MICROWIRE™/DSP compatible

• Serial peripheral interface (SPI)/QSPI™/MICROWIRE™/DSP compatible

• Performance7 kV ESD rating on analog input channelsStandby mode: 25 mW (typical)

• 7 kV ESD rating on analog input channels

• Standby mode: 25 mW (typical)

• 64-lead LQFP package

Description

The AD7605-4 is a 4-channel, 16-bit, simultaneous sampling, analog-to-digital data acquisition system (DAS). The device contains analog input clamp protection, a second-order antialias-ing filter, a track-and-hold amplifier, a 16-bit charge redistribution successive approximation analog-to-digital converter (ADC), a 2.5 V reference and reference buffer, and high speed serial and parallel interfaces.The AD7605-4 operates from a single 5 V supply and can accommodate ±10 V and ±5 V true bipolar input signals while sampling at throughput rates of up to 300 kSPS for all channels. The input clamp protection circuitry can tolerate voltages up to ±16.5 V. The AD7605-4 has 1 MΩ analog input impedance, regardless of sampling frequency. The single-supply operation, on-chip filtering, and high input impedance eliminate the need for driver op amps and external bipolar supplies.The AD7605-4 is SPI, QSPI™, MICROWIRE™, and digital signal processor (DSP) compatible.ApplicationsPower-line monitoring and protection systemsMultiphase motor controlInstrumentation and control systemsMultiaxis positioning systemsData acquisition systems (DAS)