Precision, Wide Bandwidth a 3-Port Isolation Amplifier AD210 FUNCTIONAL BLOCK DIAGRAM FEATURES High CMV Isolation: 2500 V rms Continuous 63500 V Peak Continuous INPUT OUTPUT 16 FB T1 Small Size: 1.00 3 2.10 3 0.350 IN 17 Three-Port Isolation: Input, Output, and Power DEMOD 1 V MOD O FILTER Low Nonlinearity: 60.012% max 19 +IN Wide Bandwidth: 20 kHz Full-Power (3 dB) I 18 2 O COM COM Low Gain Drift: 625 ppm/8C max T3 POWER T2 High CMR: 120 dB (G = 100 V/V) +V 3 +V ISS 14 OUTPUT OSS INPUT Isolated Power: 615 V 65mA POWER POWER V 15 SUPPLY 4 V ISS SUPPLY OSS 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 A 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) V/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 Wide Bandwidth: The AD210s full-power bandwidth of features far exceed those offered in more expensive devices. 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 AD210s functionally complete de- Small Size: The AD210 provides a complete isolation function sign, powered by a single +15 V supply, eliminates the need for in a small DIP package just 1.00 2.10 0.350 . The low an external DC/DC converter, unlike optically coupled isolation profile DIP package allows application in 0.5 card racks and devices. The true three-port design structure permits the assemblies. The pinout is optimized to facilitate board layout AD210 to be applied as an input or output isolator, in single or while maintaining isolation spacing between ports. multichannel applications. The AD210 will maintain its high performance under sustained common-mode stress. Three-Port Design: The AD210s three-port design structure allows each port (Input, Output, and Power) to remain inde- Providing high accuracy and complete galvanic isolation, the pendent. This three-port design permits the AD210 to be used AD210 interrupts ground loops and leakage paths, and rejects as an input or output isolator. It also provides additional system common-mode voltage and noise that may other vise degrade protection should a fault occur in the power source. measurement accuracy. In addition, the AD210 provides pro- 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. which may result from its use. No license is granted by implication or Tel: 617/329-4700 Fax: 617/326-8703 otherwise under any patent or patent rights of Analog Devices.AD210SPECIFICATIONS (typical +258C, and V = +15 V unless otherwise noted) S OUTLINE DIMENSIONS Model AD210AN AD210BN AD210JN Dimensions shown in inches and (mm). GAIN Range 1 V/V 100 V/V * * Error 2% max 1% max * vs. Temperature(0C to +70C) +25 ppm/C max * * (25C to +85C) 50 ppm/C max * * vs. Supply Voltage 0.002%/V * * 1 Nonlinearity 0.025% max 0.012% max * INPUT VOLTAGE RATINGS Linear Differential Range 10 V * * Maximum Safe Differential Input 15 V * * Max. CMV Input-to-Output * ac, 60 Hz, Continuous 2500 V rms * 1500 V rms dc, Continuous 3500 V peak * 2000 V peak Common-Mode Rejection * 60 Hz, G = 100 V/V * R 500 Impedance Imbalance 120 dB * * S Leakage Current Input-to-Output * 240 V rms, 60 Hz 2 A rms max * * INPUT IMPEDANCE 12 Differential l0 ** AC1059 MATING SOCKET Common Mode 5 Gi5pF * * INPUT BIAS CURRENT Initial, +25C 30 pA typ (400 pA max) * * vs. Temperature (0C to +70C) 10 nA max * * (25C to +85C) 30 nA max * * INPUT DIFFERENCE CURRENT Initial, +25C 5 pA typ (200 pA max) * * vs. Temperature(0C to + 70C) 2 nA max * * (25C to +85C) 10 nA max * * INPUT NOISE Voltage (l kHz) 18 nV/Hz ** (10 Hz to 10 kHz) 4 V rms * * Current (1 kHz) 0.01 pA/Hz ** FREQUENCY RESPONSE Bandwidth (3 dB) * G = 1 V/V 20 kHz * * AD210 PIN DESIGNATIONS G = 100 V/V 15 kHz * * Settling Time (10 mV, 20 V Step) * Pin Designation Function G = 1 V/V 150 s* * G = 100 V/V 500 s* * Slew Rate (G = 1 V/V) 1 V/s* * 1 V Output O 2 OFFSET VOLTAGE (RTI) 2O Output Common COM Initial, +25C 15 45/G) mV max (5 15/G) mV max * 3+V +Isolated Power Output OSS vs. Temperature (0C to +70C) (10 30/G) V/C* * 4V Isolated Power Output (25C to +85C) (10 50/G) V/C* * OSS 3 14 +V +Isolated Power Input ISS RATED OUTPUT Voltage, 2 k Load 10 V min * * 15 V Isolated Power Input ISS Impedance 1 max * * 16 FB Input Feedback Ripple (Bandwidth = 100 kHz) 10 mV p-p max * * 17 IN Input 4 ISOLATED POWER OUTPUTS 18 I Input Common COM Voltage, No Load 15 V * * Accuracy 10% * * 19 +IN +Input Current 5mA * * 29 Pwr Com Power Common Regulation, No Load to Full Load See Text * * 30 Pwr Power Input Ripple See Text * * POWER SUPPLY Voltage, Rated Performance +15 V dc 5% * * Voltage, Operating +15 V dc 10% * * Current, Quiescent 50 mA * * WARNING Current, Full Load Full Signal 80 mA * * TEMPERATURE RANGE Rated Performance 25C to +85C* * Operating 40C to +85C* * ESD SENSITIVE DEVICE Storage 40C to +85C* * PACKAGE DIMENSIONS CAUTION Inches 1.00 2.10 0.350 * * ESD (electrostatic discharge) sensitive device. Elec- Millimeters 25.4 53.3 8.9 * * trostatic charges as high as 4000 V readily accumu- NOTES late on the human body and test equipment and can *Specifications same as AD210AN. 1 discharge without detection. Although the AD210 Nonlinearity is specified as a % deviation from a best straight line.. 2 RTI Referred to Input. features proprietary ESD protection circuitry, per- 3 A reduced signal swing is recommended when both V and V supplies are fully ISS OSS manent damage may occur on devices subjected to loaded, due to supply voltage reduction. 4 high energy electrostatic discharges. Therefore, See text for detailed information. Specifications subject to change without notice. proper ESD precautions are recommended to avoid performance degradation or loss of functionality. 2 REV. A