Datasheet ADA4098-1 (Analog Devices)

50 V, 1 MHz, 165 µA, Robust Over-The-Top® Precision Op Amp Preliminary Technical Data ADA4098-1 FEATURES GENERAL DESCRIPTION Ultrawide common-mode range: −VS – 0.1V to −VS + 70 V
The ADA4098-1 is a robust, precision, rail-to-rail input/output
Wide supply voltage range (VSY): +3 V to +50 V (±25 V)
operational amplifier (op amp) with inputs that can operate from
Low supply current: 165 µA (typical)
−VS to +VS and beyond, which is referred to in this document as
Low input offset voltage: 25 µV maximum
Over-The-Top. The device has offset voltages <25 µV and input
Low input offset voltage drift: 0.4 μV/°C maximum
bias currents (IB) <700 pA and can operate on single or split
Low voltage noise:
supplies that range from 3 V to 50 V. The ADA4098-1 draws
1/f noise corner: 6 Hz
165 µA of quiescent current.
400 nV p-p at 0.1 Hz to 10 Hz
The ADA4098-1 Over-The-Top input stage has robust input
17 nV/√Hz at 100 Hz (en)
protection features for abusive environments. The inputs can
High speed
tolerate up to 80 V of differential voltage without damage or
GBP: 1 MHz
degradation to dc accuracy. The operating input common-mode
Slew rate: 0.85 V/µs
range extends from rail-to-rail and beyond; up to 70 V > –V
Low power shutdown: <20 µA
S, independent of the +V
Low input bias current: 700 pA maximum
S supply.
High open-loop voltage gain: 120 dB
The ADA4098-1 is unity-gain stable and can drive loads requiring
CMRR, PSRR: 123 dB (minimum)
up to 20 mA, as wel as driving capacitive loads as large as 200 pF.
Input overdrive tolerant with no phase reversal
The amplifier is available with low power shutdown.
4 kV HBM and 2 kV CDM
The ADA4098-1 is available in the standard, 6-lead, thin small
Wide temperature range: −55°C to +150°C
outline transistor (TSOT) package.
6-lead TSOT package APPLICATIONS Industrial sensor conditioning Supply current sensing Battery and power supply monitoring Front-end amplifiers in abusive environments 4 mA to 20 mA transmitters TYPICAL APPLICATION CIRCUIT ADA4098-1 5V 0.1Ω 10W 100Ω V M1 B A T = 1.5V TO 70V BSS123LT1G 100Ω SHDN V OUT 1V/A LOAD 1kΩ 10mA TO 1A
22172-001 Figure 1. 1 V/A Over-The-Top® Current Sense Application Figure 2. Output Error vs. Load Current
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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