AD7606x Family

The AD7606/AD7606-6/AD7606-4 are 16-bit, simultaneous sampling, analog-to-digital data acquisition systems (DAS) with eight, six, and four channels, respectively. Each part contains analog input clamp protection, a second-order antialiasing filter, a track-and-hold amplifier, a 16-bit charge redistribution successive approximation analog-to-digital converter (ADC), a flexible digital filter, a 2.5 V reference and reference buffer, and high speed serial and parallel interfaces.

The AD7606/AD7606-6/AD7606-4 operate from a single 5 V supply and can accommodate ±10 V and ±5 V true bipolar input signals while sampling at throughput rates up to 200 kSPS for all channels. The input clamp protection circuitry can tolerate voltages up to ±16.5 V. The AD7606 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 AD7606/AD7606-6/AD7606-4 antialiasing filter has a 3 dB cutoff frequency of 22 kHz and provides 40 dB antialias rejection when sampling at 200 kSPS. The flexible digital filter is pin driven, yields improvements in SNR, and reduces the 3 dB bandwidth.

Applications

• Power-line monitoring and protection systems
• Multiphase motor control
• Instrumentation and control systems
• Multiaxis positioning systems
• Data acquisition systems (DAS)

The AD7606B is a 16-bit, simultaneous sampling, analog-to-digital data acquisition system (DAS) with eight channels, each channel containing analog input clamp protection, a programable gain amplifier (PGA), a low-pass filter, and a 16-bit successive approximation register (SAR), analog-to-digital converter (ADC). The AD7606B also contains a flexible digital filter, low drift, 2.5 V precision reference and reference buffer to drive the ADC and flexible parallel and serial interfaces.

The AD7606B operates from a single 5 V supply and accommodates ±10 V, ±5 V, and ±2.5 V true bipolar input ranges when sampling at throughput rates of 800 kSPS for all channels. The input clamp protection tolerates voltages up to ±21 V. The AD7606B has a 5 MΩ analog input impedance, resulting in less than 20 LSB bipolar zero code when the input signal is disconnected and pulled to ground through a 10 kΩ external resistor. The single supply operation, on-chip filtering, and high input impedance eliminates the need for external driver op amps, which require bipolar supplies. For applications with lower throughput rates, the AD7606B flexible digital filter can be used to improve noise performance.

In hardware mode, the AD7606B is fully compatible with the AD7606. In software mode, the following advanced features are available:

• Additional ±2.5 V analog input range.
• Analog input range (±10 V, ±5 V, and ±2.5 V), selectable per channel.
• Additional oversampling (OS) options, up to OS × 256.
• System gain, system offset, and system phase calibration per channel.
• Analog input open circuit detector.
• Diagnostic multiplexer.
• Monitoring functions (serial peripheral interface (SPI) invalid read/write, cyclic redundancy check (CRC), overvoltage and undervoltage events, busy stuck monitor, and reset detection).

Note that throughout this data sheet, multifunction pins, such as the RD/SCLK pin, are referred to either by the entire pin name or by a single function of the pin, for example, the SCLK pin, when only that function is relevant.

Applications

• Power line monitoring
• Protective relays
• Multiphase motor control
• Instrumentation and control systems
• Data acquisition systems

The AD7606C-16 is a 16-bit, simultaneous sampling, analog-to-digital data acquisition system (DAS) with eight channels. Each channel contains analog input clamp protection, a programmable gain amplifier (PGA), a low-pass filter (LPF), and a 16-bit successive approximation register (SAR) analog-to-digital converter (ADC). The AD7606C-16 also contains a flexible digital filter, a low drift, 2.5 V precision reference, a reference buffer to drive the ADC, and flexible parallel and serial interfaces. The AD7606C-16 operates from a single 5 V supply and accommodates the following input ranges when sampling at throughput rates of 1 MSPS for all channels:

• Bipolar single-ended: ±12.5 V, ±10 V, ±6.25 V, ±5 V, and±2.5 V
• Unipolar single-ended: 0 V to 12.5 V, 0 V to 10 V, and 0 V to 5 V
• Bipolar differential: ±20 V, ±12.5 V, ±10 V, and ±5 V

The input clamp protection tolerates voltages up to ±21 V. The single supply operation, on-chip filtering, and high input impedance eliminate the need for external driver op amps, which require bipolar supplies. For applications with lower throughput rates, the AD7606C-16 flexible digital filter can be used to improve noise performance. In hardware mode, the AD7606C-16 is fully compatible with the AD7606 and AD7606B. In software mode, the following advanced features are available:

• Analog input range selectable per channel with added ranges available
• High bandwidth mode (220 kHz) selectable per channel
• Additional oversampling options with an oversampling ratio up to 256
• System gain, system offset, and system phase calibration, per channel
• Analog input open circuit detector
• Diagnostic multiplexer
• Monitoring functions (serial peripheral interface (SPI) invalid read and write, cyclic redundancy check (CRC), busy stuck monitor, and reset detection)

Note that throughout this data sheet, multifunction pins, such as the RD/SCLK pin, are referred to either by the entire pin name or by a single function of the pin, for example, the SCLK pin, when only that function is relevant.

APPLICATIONS

• Power line monitoring
• Protective relays
• Multiphase motor control
• Instrumentation and control systems
• Data acquisition systems

The AD7606C-18 is an 18-bit, simultaneous sampling, analog-to-digital data acquisition system (DAS) with eight channels. Each channel contains analog input clamp protection, a programmable gain amplifier (PGA), a low-pass filter (LPF), and an 18-bit successive approximation register (SAR) analog-to-digital converter (ADC). The AD7606C-18 also contains a flexible digital filter, a low drift, 2.5 V precision reference, a reference buffer to drive the ADC, and flexible parallel and serial interfaces.

The AD7606C-18 operates from a single 5 V supply and accommodates the following input ranges when sampling at throughput rates of 1 MSPS for all channels:

• Bipolar single-ended: ±12.5 V, ±10 V, ±6.25 V, ±5 V, and ±2.5 V
• Unipolar single-ended: 0 V to 12.5 V, 0 V to 10 V, and 0 V to 5 V
• Bipolar differential: ±20 V, ±12.5 V, ±10 V, and ±5 V

The input clamp protection tolerates voltages up to ±21 V. The single supply operation, on-chip filtering, and high input impedance eliminate the need for external driver op amps, which require bipolar supplies. For applications with lower throughput rates, the AD7606C-18 flexible digital filter can be used to improve noise performance.

In hardware mode, the AD7606C-18 is fully compatible with the AD7608 and AD7609. In software mode, the following advanced features are available:

• Analog input range selectable per channel with added ranges available
• High bandwidth mode (220 kHz) selectable per channel
• Additional oversampling options with an oversampling ratio up to 256
• System gain, system offset, and system phase calibration, per channel
• Analog input open circuit detector
• Diagnostic multiplexer
• Monitoring functions (serial peripheral interface (SPI) invalid read and write, cyclic redundancy check (CRC), busy stuck monitor, and reset detection)

Note that throughout the data sheet, multifunction pins, such as the RD/SCLK pin, are referred to either by the entire pin name or by a single function of the pin, for example, the SCLK pin, when only that function is relevant.

APPLICATIONS

• Power line monitoring
• Protective relays
• Multiphase motor control
• Instrumentation and control systems
• Data acquisition systems

The AD7607 is a 14-bit, simultaneous sampling, analog-to-digital data acquisition system (DAS). The part contains analog input clamp protection; a second-order antialiasing filter; a track-and-hold amplifier; a 14-bit charge redistribution, successive approximation analog-to-digital converter (ADC); a flexible digital filter; a 2.5 V reference and reference buffer; and high speed serial and parallel interfaces.

The AD7607 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 200 kSPS for all channels. The input clamp protection circuitry can tolerate voltages of up to ±16.5 V. The AD7607 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 AD7607 antialiasing filter has a 3 dB cutoff frequency of 22 kHz and provides 40 dB antialias rejection when sampling at 200 kSPS. The flexible digital filter is pin driven and can be used to simplify external filtering.

Applications

• Power-line monitoring and protection systems
• Multiphase motor control
• Instrumentation and control systems
• Multiaxis positioning systems
• Data acquisition systems (DAS)

The AD7608 is an 18-bit, 8-channel simultaneous sampling, analog-to-digital data acquisition system (DAS). The part contains analog input clamp protection, a second-order antialiasing filter, a track-and-hold amplifier, an 18-bit charge redistribution successive approximation analog-to-digital converter (ADC), a flexible digital filter, a 2.5 V reference and reference buffer, and high speed serial and parallel interfaces.

The AD7608 operates from a single 5 V supply and can accommodate ±10 V and ±5 V true bipolar input signals while sampling at throughput rates up to 200 kSPS for all channels.

The input clamp protection circuitry can tolerate voltages up to ±16.5 V. The AD7608 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 AD7608 antialiasing filter has a 3 dB cutoff frequency of 22 kHz and provides 40 dB antialias rejection when sampling at 200 kSPS. The flexible digital filter is pin driven, yields improvements in SNR, and reduces the 3 dB bandwidth.

• Power line monitoring and protection systems
• Multiphase motor controls
• Instrumentation and control systems
• Multiaxis positioning systems
• Data acquisition systems (DAS)

The AD7609 is an 18-bit, 8-channel, true differential, simultaneous sampling analog-to-digital data acquisition system (DAS). The part contains analog input clamp protection, a second-order antialiasing filter, a track-and-hold amplifier, an 18-bit charge redistribution successive approximation analog-to-digital converter (ADC), a flexible digital filter, a 2.5 V reference and reference buffer, and high speed serial and parallel interfaces.

The AD7609 operates from a single 5 V supply and can accommodate ±20 V and ±10 V true bipolar differential input signals while sampling at throughput rates up to 200 kSPS for all channels. The input clamp protection circuitry can tolerate voltages up to ±16.5 V on each analog input pin. The AD7609 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 AD7609 antialiasing filter has a −3 dB cutoff frequency of 32 kHz and provides 40 dB antialias rejection when sampling at 200 kSPS. The flexible digital filter is pin driven, yields improvements in SNR, and reduces the −3 dB bandwidth.

Applications

• Power line monitoring and protection systems
• Multiphase motor control
• Instrumentation and control systems
• Multiaxis positioning systems
• Data acquisition systems (DAS)

The EVAL-AD7606SDZ is a fully featured evaluation kit for the AD7606. This board operates in standalone mode or in conjunction with the Evaluation Controller Board, EVAL-SDP-CB1Z. When operated with the Evaluation Controller Board, software is provided enabling the user to perform detailed analysis of the ADC's performance. This software includes the technical note describing the operation and set up of the evaluation board in standalone operation or when operated with the Evaluation Controller Board.

The EVAL-AD7606BFMCZ is a full featured evaluation board that allows users to easily evaluate the features of the AD7606B analog-to-digital converter (ADC). The EVAL-AD7606BFMCZ can be controlled by the system demonstration platform controller board (EVAL-SDP-CH1Z (SDP-H1)). The EVAL-SDP-CH1Z (SDP-H1) allows the EVAL-AD7606BFMCZ to be controlled through the USB port of a PC using the AD7606B evaluation software. The software is available for download from the AD7606B product page.

On-board components include an ADP7118 5 V, low noise low dropout regulator (LDO) and an ADR4525 high precision, band gap voltage reference.

Full data on the AD7606B is available in the AD7606B data sheet, which must be consulted in conjunction with this user guide. Full details on the EVAL-SDP-CH1Z are available on the SDP-H1 product page.

The EVAL-AD7606CFMCZ is a fully featured evaluation board that allows users to evaluate the features of the AD7606C-18 and AD7606C-16 analog-to-digital converters (ADCs). The EVAL-AD7606CFMCZ is controlled by the EVAL-SDP-CH1Z (SDP-H1) system demonstration platform (SDP). The SDP-H1 controls the EVAL-AD7606CFMCZ through the USB port of a PC using the Analysis | Control | Evaluation (ACE) software, which is available to download from the ACE software page or the AD7606C-18 or the AD7606C-16 product page.

The on-board components include the ADP7118 5 V and 3.3 V low noise, low dropout (LDO) linear regulators and an ADR4525 high precision, band gap voltage reference.

Figure 1 in the user guide shows the evaluation board photograph. The printed model number on the evaluation board is EVAL-AD7606CFMCZ.

For full details on the AD7606C-18 and the AD7606C-16, see the AD7606C-18 and AD7606C-16 data sheets, which must be consulted in conjunction with this user guide when using the EVAL-AD7606CFMCZ. In addition, full details on the SDP-H1 are available on the SDP-H1 product page.

Throughout this user guide, the EVAL-AD7606CFMCZ refers to either the EVAL-AD7606C18FMCZ or the EVAL-AD7606C16FMCZ.

The EVAL-AD7607SDZ is a fully featured evaluation Kit for the AD7607. This board operates in standalone mode or in conjunction with the Evaluation Controller Board, EVAL-SDP-CB1Z. When operated with the Evaluation Controller Board, software is provided enabling the user to perform detailed analysis of the ADC's performance. This software includes the technical note describing the operation and set up of the evaluation board in standalone operation or when operated with the Evaluation Controller Board.

The EVAL-AD7608SDZ is a fully featured evaluation Kit for the AD7608. This board operates in standalone mode or in conjunction with the Evaluation Controller Board, EVAL-SDP-CB1Z. When operated with the Evaluation Controller Board, software is provided enabling the user to perform detailed analysis of the ADC's performance. This software includes the technical note describing the operation and set up of the evaluation board in standalone operation or when operated with the Evaluation Controller Board.

The EVAL-AD7609EDZ is a fully featured evaluation kit for the AD7609. This board operates in stand alone mode or in conjunction with the Converter Evaluation and Development board, EVAL-CED1Z . When operated with the Converter Evaluation and Development board, software is provided enabling the user to perform detailed analysis of the ADC's performance. This software includes the technical note describing the operation and set up of the evaluation board in standalone operation or when operated with the Converter Evaluation and Development board.