Features and Benefits
- 5 MHz to 21 MHz master clock input frequency
- Offset drift vs. temperature: ±0.6 μV/°C maximum
- SNR: 86 dB typical
- 16 bits, no missing codes
- Full-scale analog input voltage range: ±320 mV
- ENOB: 14 bits typical
- IDD1: 10 mA maximum
- On-board digital isolator
- Operating temperature range: −40°C to +125°C
- High common-mode transient immunity: 150 kV/μs minimum, VDD2 = 3.3 V
- Wide-body SOICs
- 16-lead SOIC_W
- 8-lead SOIC_IC with increased creepage
- Safety and regulatory approvals (pending)
- UL recognition
- 5700 V rms for 1 minute per UL 1577
- CSA Component Acceptance Notice SA
- VOE Certificate of Conformity
- DIN V VDE V 0884-10
- VlORM = 1270 VPEAK
- DIN V VDE V 0884-11
- VlORM = 1060 VPEAK
- UL recognition
The ADuM7701 is a high performance, second-order, Σ-Δ modulator that converts an analog input signal into a high speed, single-bit data stream, with on-chip digital isolation based on Analog Devices, Inc., iCoupler technology. The devices operate from a 5 V (VDD1) power supply and accept a pseudo-differential input signal of ±250 mV (±320 mV full scale). The pseudo-differential input is ideally suited to shunt voltage monitoring in high voltage applications where galvanic isolation is required.
The analog input is continuously sampled by a high performance analog modulator, and converted to a ones density digital output stream with a data rate of up to 21 MHz. The original information can be reconstructed with an appropriate digital filter to achieve 86 dB signal to noise ratio (SNR) at 78. l kSPS with a 20 MHz MCLK for the ADuM7701. The serial input/output operates from a 5 V or a 3.3 V supply (VDD2).
The serial interface is digitally isolated. High speed complementary metal oxide semiconductor (CMOS) technology, combined with monolithic transformer technology, means the on-chip isolation provides outstanding performance characteristics, superior to alternatives such as optocoupler devices. The ADuM7701 device is offered in both 16-lead and 8-lead wide-body SOIC packages and have an operating temperature range of -40°C to +125° C.
- Shunt curent monitoring
- AC motor controls
- Power and solar inverters
- Wind turbine inverters
- Analog-to-digital and optoisolator replacement
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
The EV-ADuM7701-8FMCZ is a fully featured evaluation board that allows the user to evaluate all features of the ADuM7701 isolated analog-to-digital converter (ADC). The EVAL-SDP-CH1Z system demonstration platform high speed (SDP-H1) controller board controls the EV-ADuM7701-8FMCZ evaluation board via the J9 connector, and through the USB port of a PC using the Analysis Control Evaluation (ACE) software. The ACE software is available for download on the ACE software page.
On-board components include an isolated, 5 kV, isoPower dc-to-dc converter (the ADuM6000), a 50 mA, 60 V, high efficiency buck regulator (the ADP2360ACPZ-5.0), and a 5 V, low noise, low dropout (LDO) regulator (the ADP7104ARDZ-5.0).
This user guide explains how to use the EV-ADuM7701-8FMCZ evaluation board to evaluate the ADuM7701. The ADuM7701 is a high performance, second-order, Σ-Δ modulator that converts an analog input signal into a high speed, single-bit data stream with on-chip digital isolation based on Analog Devices, Inc., iCoupler technology. The device is powered by a 4.5 V to 5.5 V power supply (VDD1) and accepts a pseudo differential input signal of up to ±250 mV (±320 mV at full scale). The pseudo differential input shunts voltage monitoring in high voltage applications where galvanic isolation is required.
The analog input is continuously sampled by a high performance analog modulator, and converts to a ones density digital output stream with a data rate of up to 21 MHz. The original information can be reconstructed with the appropriate digital filter to achieve an 86 dB signal-to-noise ratio (SNR) at 78.1 kSPS with a 20 MHz master clock (MCLK) for the ADuM7701. The serial input/output is powered by a supply of either 5 V or 3.3 V (VDD2).
The serial interface is digitally isolated. The on-chip isolation provides performance characteristics superior to alternatives such as optocoupler devices due to high speed complementary metal-oxide semiconductor (CMOS) technology combined with monolithic transformer technology. The ADuM7701 comes in both 16-lead and 8-lead, wide-body SOIC packages, and has an operating temperature range of −40° C to +125° C.
Complete specifications for the ADuM7701 are provided in the ADuM7701 data sheet and must be consulted in conjunction with this user guide when using the evaluation board. Full details on the EVAL-SDP-CH1Z board are available on the SDP-H1 product page.
Tools & Simulations
Safety and Regulatory Compliance (1)
Product Selection Guide (1)
Technical Articles (2)
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
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