AD104

AD102 AD | Alldatasheet

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Tel: 617/329-4700 Fax: 617/326-8703 FUNCTIONAL BLOCK DIAGRAM 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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a General Purpose Input Isolation Amplifier AD102/AD104

FEATURES

Integral Isolated Power Supply

500 V rms CMV Isolation Rating (100% Tested)

High Accuracy: 60.05% Max Nonlinearity Small SIP Style Footprint Lowest Priced Isolation Amplifiers

APPLICATIONS

Single/Multichannel Data Acquisition Systems Process Control Input Signal Isolation Motor Control Utility Power Monitoring General Input Protection Circuits Ground Loop Interruption GENERAL DESCRIPTION The AD102 and AD104 are general purpose, two-port, isolation amplifiers suitable for use where input signal isolation is desired. Each offers a functionally complete, compact isolation solution rated at 500 V rms common mode, based upon the proven and reliable transformer-coupled, galvanic isolation technique used in all AD200 series isolation amplifier products. Each model is offered in a minimum footprint package requiring no external components to operate. Though similar to the AD202 and AD204, the AD102 and AD104 models are in- tended as lower cost solutions where the performance of the AD202 or AD204 is not demanded. Both the AD102 and AD104 can be used in applications where input-to-input and/or input-to-system isolation is desired. The AD102 is best suited for single input uses as it requires only +15 V dc power to operate. It may also be appropriate for multichannel applications when input-to-input isolation is not required such as where a single input multiplexer selects a spe- cific channel prior to isolation. For applications where input to input isolation is required, the AD104 may be a more desirable choice. It offers the lowest cost per channel especially when powered from a common clock source, the cost of which may be amortized over many channels. The clock necessary for AD104 operation is a 25 kHz, 15 V p-p square wave applied to the clock input pin. Most standard oscil- lator components like a CD4047 or TL555 may be used, or a designer may choose the AD246 clock driver developed for the AD204 product. PRODUCT HIGHLIGHTS Complete, Single Device Solution for Input Isolation The AD102 offers full isolation without external parts or need for an external dc/dc power source. The AD104 features the same functionality at a lower price for multichannel uses when supplied with a 25 kHz clock signal. High Accuracy A maximum nonlinearity of 0.05% is specified for both the AD102 and AD104 over the rated temperature range. Wide Bandwidth Each is specified with a full power (–3 dB) bandwidth. The AD104 at 4 kHz and the AD102 at 1.5 kHz. High Performance Common-Mode Rejection While providing continuous 500 V rms isolation, greater than 100 dB rejection is provided. Each part has only 5.5 pF (typical) of common-mode input capacitance. Uncommitted Input Stage Both models offer an uncommitted op amp input stage for user flexibility and input gain optimization up to 100 V/V. Low Power Consumption The AD104 consumes only 35 mW from the clock source, the AD102 only 75 mW from the +15 V dc supply. ±5V FS SIGNAL ICOM PWR/CLK COM 25kHz POWER DEMOD AMPLIFIER AND MODULATOR POWER RECTIFIER OSCILLATOR FILTER AD102 OUT H I OUT LO +15V DC IN+ IN– FB 3

Parameter Min Typ Max Unit Notes ACCURACY Gain Range 1 100 V/V Unity Gain Error ± 0.5 ± 5.0 % vs. Temperature ± 45 ppm/ °C ± 100 ppm/°C max vs. Time ± 50 ppm Per √1,000 Hours vs. Supply Voltage, AD102 1 ± 0.01 %/V vs. Supply Voltage, AD104 1 ± 0.001 %/V Nonlinearity2 ± 0.05 % INPUT VOLTAGE RATINGS Linear Differential Range ± 5.0 V Between IN+ and IN– CMV, Input to Output2 AC, 60 Hz, Sinusoidal Waveform 500 V rms 100% Tested DC 700 V pk-pk Common-Mode Rejection (CMR) RS ≤ 100 Ω , AD1021 100 dB RS ≤ 100 Ω , AD1041 105 dB RS ≤ 1 kΩ , AD1021 95 dB RS ≤ 1 kΩ , AD1041 105 dB Leakage Current 0.5 µA2 µA max, In to Out,

240 V rms @ 60 Hz

Input Offset Voltage, Initial ( ± 15 ± 15/G) mV +25 °C vs. Temperature ( ± 10 ± 10/G) µV/°C0 °C to +70°C Input Bias Current, Initial ± 100 pA +25 °C vs. Temperature ± 20 nA 0 °C to +70°C Input Difference Current, Initial ± 10 pA +25 °C vs. Temperature ± 2n A 0 °C to +70°C Input Voltage Noise

0.1 Hz to 100 Hz 4 µV pk-pk

f > 200 Hz 50 nV/ √Hz Differential Input Impedance 10 12 Ω Common-Mode Input Impedance 2G i5.5 Ω ipF FREQUENCY RESPONSE Bandwidth, Full Power (–3 dB) AD1021 1.5 kHz V IN ≤ ± 5 V, G = 1–50 V/V AD1041 4.0 kHz V IN ≤ ± 5 V, G = 1–50 V/V Settling Time 1.0 ms Time to ± 10 mV from

10 V Step Input

Between OUT HI and OUT LO ± 5.0 V Between OUT HI or LO to PWR/CLK COM ± 6.5 V Output Resistance AD1021 8k Ω AD1041 4k Ω Output Ripple 100 kHz Bandwidth 10 mV pk-pk 5 kHz Bandwidth 0.5 mV rms POWER SUPPLY (AD102 ONLY) 1 Supply Voltage Rated Performance +14.25 +15 +15.75 V dc Operational Performance +13.5 +15 +16.5 V dc Supply Current 5 mA AD102/AD104–SPECIFICATIONS REV. A–2– (@ TA = +258C and power supply of +15 V 6 5% unless otherwise noted)

Parameter Min Typ Max Unit Notes CLOCK OSCILLATOR (AD104 ONLY) 1 Source Voltage Amplitude 14.25 15 15.75 V pk-pk ± 7.5 V Amplitude Within ± 15 V Range Square Wave Frequency 25 kHz ± 5 kHz Duty Cycle 50 % Hi vs. Low ± 2% TEMPERATURE RANGE Rated Performance 0 +70 °C Operating –40 +85 °C Storage –40 +85 °C PACKAGE DIMENSIONS SIP Style Package (Y) 2.08 × 0.260 × 0.625 in. (max) Not Including Pin Length NOTES 1Specification(s) apply to one model only, either AD102 or AD104, as indicated. 2Nonlinearity is specified as a % deviation from a best fit straight line. 3All units 100% tested by “Partial Discharge” method @ 750 V rms for 5 sec, 150 pc maximum allowable discharge. Specifications subject to change without notice. PIN DESIGNATIONS Pin Function

1 OUT HI

2 PWR/CLK COM

4 ICOM

5 IN+

6 IN–

7 +15 V DC (AD102)

8 CLOCK INPUT (AD104)

9 OUT LO

Model Package Max CMV Nonlinearity AD102JY SIP Style 500 V rms 0.05% AD104JY SIP Style 500 V rms 0.05% DIFFERENCES BETWEEN THE AD102 AND AD104 The primary difference between the AD102 and AD104 is that the AD102 contains an integral clock oscillator circuit and the AD104 does not. As a result, the AD102 operates when sup- plied +15 V dc power while the AD104 requires power in the form of 15 V, 25 kHz square wave source. Typically a clock source for an AD104 will drive multiple devices to reduce the per channel cost of the source and to provide perfect oscillator synchronization between devices. The AD104 also consumes slightly less power and has more than twice the bandwidth of the AD102. In situations where only one or a few isolators are used, the con- venience of stand-alone operation offered by the AD102 may provide a greater user advantage than use of the AD104. For maximum product flexibility both the AD102 and AD104 can be accommodated by using a single universal layout for device interchangeability. REV. A –3– WARNING! ESD SENSITIVE DEVICE CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although these devices feature proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. AD102/AD104

0 V–15 V, any 15 V amplitude square wave at 25 kHz with a

to PWR/CLK COM should not be exceeded. Figure 6. AD104 Clock Input capacitor as close as possible to the clock driver. ditional resistor divider technique. Figure 7. Unity Gain Application Figure 8. Input Connection for Gain > 1 cases, shielded cable may be required or AD104s can be used. AD202/AD204 and AD210 data sheets.

REV. A–6– AD102/AD104 OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 1 2 98 7 3 4 0.10 (2.54)0.20 (5.08) 0.05 (1.27) BOTTOM VIEW 1.50 (38.10) 0.120 (3.048) 0.143 (3.63) AD102/AD104 FRONT VIEW 2.08 (52.83) MAX 0.15 (3.81) TYP 0.010 x 0.020 (0.254 x 0.508) 0.250 (6.35) TYP 0.260 (6.60) MAX 0.625 (15.88) MAX 0.10 (2.54) SIDE VIEW NOTE: PIN 7 IS ONLY PRESENT ON AD102 PIN 8 IS ONLY PRESENT ON AD104 PRINTED IN U.S.A. C1954–10–10/94