Datasheet ADA4099-1 (Analog Devices) - 23

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Preliminary Technical Data ADA4099-1 ESD PROTECTION WHEN POWERED VCC ADVANTAGES DISADVANTAGES 8 INEXPENSIVE R1 INTRODUCES VIN R1 IN+ 3 U1
ICs react to ESD strikes differently when unpowered vs. powered,
(~5 CENTS) THERMAL NOISE V+ 1 VOUT SMALL RC NETWORK C1 2 V–
which falls under IEC-61000-4-2 standards (see the Absolute
FOOTPRINT LIMITS SPEED GND 4 VEE
Maximum Ratings section). A device that performs well under
MINIMAL NEED TO CAREFULLY LEAKAGE CHARACTERIZE
HBM conditions can perform poorly under International Electro-
CAPACITOR NOT AS ROBUST
3 -16 technical Commission (IEC) conditions. The ADA4099-1 is
AGAINST REPEATED STRIKES
172 22 thoroughly abused with ESD strikes under IEC conditions to Figure 63. ESD Protection Circuit (RC Network) create a front-end circuit protection scheme that protects the In the circuit shown in Figure 64, R1 is a 220 Ω, Panasonic, device if subjected to ESD strikes. Figure 63 and Figure 64 show 0805, ERJ-P6 series, and D1 is a Bourns CDSOD323-T36SC. two different protection schemes that extend the protection of An ESD varistor can be considered for D1. the ADA4099-1 to ±8 kV ESD strikes. For more information on system level ESD considerations, see Consider the following when selecting components: the technical article, When Good Electrons Go Bad: How to A component size of 0805 or larger to reduce chance of Protect Your Analog Front End, on the Analog Devices, Inc., arc-over. website. Pulse withstanding, thick film resistors.
RELATED PRODUCTS
C0G MLCC with a minimum rating of 100 V. Bidirectional, transient voltage suppression (TVS) diodes. Table 7 describes several alternative precision amplifiers that can also be considered for certain applications. In the circuit shown in Figure 63, R1 is a 220 Ω, Panasonic, 0805, ERJ-P6 series, and C1 is a 100 pF, Yageo, 0805, 100 V, C0G/NPO.
VCC ADVANTAGES DISADVANTAGES 8 VIN R1 IN+ 3 U1 INEXPENSIVE R1 INTRODUCES (20 TO 30 CENTS) NOISE D_TVS V+ 1 VOUT D1 2 V– SMALL D1 HAS LEAKAGE FOOTPRINT CURRENT GND 4 VEE VERY ROBUST D1 HAS CAPACITANCE
164 2-
(5pF TO 300pF)
17 22 Figure 64. ESD Protection Circuit (R-TVS Network)
Table 7. ADA4099-1 Related Products Model VOS (μV) IB (nA) GBP (kHz) en (nV/√Hz) ISY (μA) Input Common-Mode Range (V)
ADA4099-1 25 10 8000 7 1500 −VS to −VS + 70 ADA4077-1 35 1 3900 7 500 −VS to +VS LT6015 50 5 3200 18 335 −VS to −VS + 76 LT6014 60 0.4 1600 9.5 165 −VS to +VS LT1494 375 1 2.7 185 1.5 −VS to −VS + 36 LT1490A 500 8 180 50 55 −VS to −VS + 44 Rev. PrA | Page 23 of 26 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATION CIRCUIT TABLE OF CONTENTS SPECIFICATIONS 5 V SUPPLY ±15 V SUPPLY ABSOLUTE MAXIMUM RATINGS MAXIMUM POWER DISSIPATION THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION INPUT PROTECTION OVER-THE-TOP OPERATION CONSIDERATIONS OUTPUT SHUTDOWN PIN (SHDN) APPLICATIONS INFORMATION LARGE RESISTOR GAIN OPERATION RECOMMENDED VALUES FOR VARIOUS GAINS NOISE DISTORTION POWER DISSIPATION AND THERMAL SHUTDOWN CIRCUIT LAYOUT CONSIDERATIONS POWER SUPPLY BYPASSING GROUNDING ESD PROTECTION WHEN POWERED RELATED PRODUCTS TYPICAL APPLICATIONS OUTLINE DIMENSIONS