Datasheet AD210 (Analog Devices)

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Precision, Wide Bandwidth 3-Port Isolation Amplifier AD210 FEATURES FUNCTIONAL BLOCK DIAGRAM High CMV Isolation: 2500 V rms Continuous
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3500 V Peak Continuous INPUT OUTPUT FB 16 T1 Small Size: 1.00"
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2.10"
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0.350" –IN 17 Three-Port Isolation: Input, Output, and Power 1 V MOD DEMOD O Low Nonlinearity:
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0.012% max +IN 19 FILTER Wide Bandwidth: 20 kHz Full-Power (–3 dB) ICOM 18 2 OCOM Low Gain Drift:
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25 ppm/
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C max T3 T2 POWER High CMR: 120 dB (G = 100 V/V) +VISS 14 INPUT OUTPUT 3 +VOSS Isolated Power:
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15 V @
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5 mA POWER POWER –V 15 ISS SUPPLY SUPPLY 4 –VOSS Uncommitted Input Amplifier POWER OSCILLATOR AD210 APPLICATIONS 30 29 Multichannel Data Acquisition PWR PWR COM High Voltage Instrumentation Amplifier Current Shunt Measurements Process Signal Isolation GENERAL DESCRIPTION
mode voltage isolation between any two ports. Low input The AD210 is the latest member of a new generation of low capacitance of 5 pF results in a 120 dB CMR at a gain of 100, cost, high performance isolation amplifiers. This three-port, and a low leakage current (2 µA rms max @ 240 V rms, 60 Hz). wide bandwidth isolation amplifier is manufactured with sur-
High Accuracy:
With maximum nonlinearity of ± 0.012% (B face-mounted components in an automated assembly process. Grade), gain drift of ± 25 ppm/°C max and input offset drift of The AD210 combines design expertise with state-of-the-art (± 10 ± 30/G) µV/°C, the AD210 assures signal integrity while manufacturing technology to produce an extremely compact providing high level isolation. and economical isolator whose performance and abundant user features far exceed those offered in more expensive devices.
Wide Bandwidth:
The AD210’s full-power bandwidth of 20 kHz makes it useful for wideband signals. It is also effective The AD210 provides a complete isolation function with both in applications like control loops, where limited bandwidth signal and power isolation supplied via transformer coupling in- could result in instability. ternal to the module. The AD210’s functionally complete de- sign, powered by a single +15 V supply, eliminates the need for
Small Size:
The AD210 provides a complete isolation function an external DC/DC converter, unlike optically coupled isolation in a small DIP package just 1.00" × 2.10" × 0.350". The low devices. The true three-port design structure permits the profile DIP package allows application in 0.5" card racks and AD210 to be applied as an input or output isolator, in single or assemblies. The pinout is optimized to facilitate board layout multichannel applications. The AD210 will maintain its high while maintaining isolation spacing between ports. performance under sustained common-mode stress.
Three-Port Design:
The AD210’s three-port design structure Providing high accuracy and complete galvanic isolation, the allows each port (Input, Output, and Power) to remain inde- AD210 interrupts ground loops and leakage paths, and rejects pendent. This three-port design permits the AD210 to be used common-mode voltage and noise that may other vise degrade as an input or output isolator. It also provides additional system measurement accuracy. In addition, the AD210 provides pro- protection should a fault occur in the power source. tection from fault conditions that may cause damage to other
Isolated Power:
± 15 V @ 5 mA is available at the input and sections of a measurement system. output sections of the isolator. This feature permits the AD210 to excite floating signal conditioners, front-end amplifiers and
PRODUCT HIGHLIGHTS
remote transducers at the input as well as other circuitry at the The AD210 is a full-featured isolator providing numerous user output. benefits including:
Flexible Input:
An uncommitted operational amplifier is pro-
High Common-Mode Performance:
The AD210 provides vided at the input. This amplifier provides buffering and gain as 2500 V rms (Continuous) and ± 3500 V peak (Continuous) common- required and facilitates many alternative input functions as required by the user. REV. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties
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