
ADA4098-2 Series
50 V, 1 MHz, 165 μA per Channel, Robust, Over-The-Top, Precision Op Amps
Manufacturer: Analog Devices
Catalog
50 V, 1 MHz, 165 μA per Channel, Robust, Over-The-Top, Precision Op Amps
Key Features
• Ultrawide common-mode input range: −VS− 0.1 V to −VS+ 70 V
• Wide power supply voltage range: +3 V to +50 V (to ±25 V for PSRR)
• Low power supply current: 165 μA per channel (typical)
• Low input offset voltage: ±35 μV maximum
• Low input offset voltage drift: ±0.5 μV/°C maximum (B grade)
• Low input voltage noise1/f noise corner: 6 Hz typical400 nV p-p typical at 0.1 Hz to 10 Hz17 nV/√Hz typical at 100 Hz
• 1/f noise corner: 6 Hz typical
• 400 nV p-p typical at 0.1 Hz to 10 Hz
• 17 nV/√Hz typical at 100 Hz
• High speedGBP: 1.05 MHz typical for fTEST= 2.5 kHzSlew rate: 0.85 V/μs typical at ΔVOUT= 25 V
• GBP: 1.05 MHz typical for fTEST= 2.5 kHz
• Slew rate: 0.85 V/μs typical at ΔVOUT= 25 V
• Low power supply current shutdown: 20 μA maximum
• Low input offset current: ±700 pA maximum
• Large signal voltage gain: 126 dB minimum for ΔVOUT= 3.5 V
• CMRR: 120 dB minimum at VCM= −0.1 V to +70 V
• PSRR: 123 dB minimum at VSY= +3 V to ±25 V
• Input overdrive tolerant with no phase reversal
• ±3 kV HBM and ±1.25 kV FICDM
• Wide temperature range: −55°C to +150°C (H grade)
Description
AI
TheADA4098-1and ADA4098-2 are single/dual robust, precision, rail-to-rail input and output operational amplifiers (op amps) with inputs that operate from −VSto +VSand beyond, which is referred to in this data sheet as Over-The-Top™. The devices feature offset voltages of <35 μV, input bias currents (IB) of <700 pA, and can operate on single or split supplies that range from 3 V to 50 V. The ADA4098-1 and ADA4098-2 draw 165 μA of supply current per channel.The ADA4098-1 and ADA4098-2 Over-The-Top™input stages have robust input protection features for abusive environments. The inputs can tolerate up to 80 V of differential voltage without damage or degradation to dc accuracy. The operating common-mode input range extends from rail-to-rail and beyond, up to 70 V > –VS, independent of the +VSsupply.The ADA4098-1 and ADA4098-2 are unity-gain stable and can drive loads requiring up to 20 mA per channel. The devices can also drive capacitive loads as large as 200 pF. The amplifiers are available with low power shutdown.The ADA4098-1 is available in a standard, 6-lead thin small outline transistor (TSOT) package. The ADA4098-2 is available in an 8-lead standard small outline (SOIC_N) package, 8-lead mini small outline package (MSOP), and 10-lead lead-frame chip-scale package (LFCSP).APPLICATIONSIndustrial sensor conditioningSupply current sensingBattery and power supply monitoringFront-end amplifiers in abusive environments4 mA to 20 mA transmitters