1 Features
. Fully differential amplifier (FDA) architecture
. Bandwidth: 500MHz (G = 2V/V)
. Gain bandwidth product: 850MHz
. Slew rate: 1500V/μs
. HD2: .95dBc at 10MHz (2VPP, RL = 500Ω)
. HD3: .90dBc at 10MHz (2VPP, RL = 500Ω)
. Input voltage noise: 2.2nV/√Hz (f > 100kHz)
. Low offset drift: ±0.5μV/°C (typical)
. Negative rail input (NRI)
. Rail-to-rail output (RRO)
. Robust operation for Rload ≥ 50Ω
. Output common-mode control
. Power supply:
. Single-supply voltage range: 2.7V to 5.4V
. Split-supply voltage range: ±1.35V to ±2.7V
. Quiescent current: 10.1mA (5V supply)
. Power-down capability: 2μA (typical)

2 Applications
• Low-power, high-performance ADC driver:
– SAR, ΔΣ, and pipeline
• Low power, high performance (dc or ac coupled):
– Single-ended to differential amplifier
– Differential to differential amplifier
• Differential active filters
• Differential transimpedance for DAC outputs
• DC- or ac-coupled interface to the ADC3xxx
Family of low-power, high-performance ADCs
• Pin-compatible to ADA4932-1 (VQFN-16)

3 Description
The THS4541 is a low-power, voltage-feedback, fully
differential amplifier (FDA) with an input commonmode
range below the negative rail, and rail-to-rail
output. The THS4541 is designed for low-power data
acquisition systems where high density is critical in a
high-performance analog-to-digital converter (ADC) or
digital-to-analog converter (DAC) interface design.
The THS4541 features the negative-rail input required
when interfacing a dc-coupled, ground-centered,
source signal. This negative-rail input, with rail-torail
output, allows for easy interface between singleended,
ground-referenced, bipolar signal sources and
a wide variety of successive approximation register
(SAR), delta-sigma (ΔΣ), or pipeline ADCs using only
a single 2.7V to 5.4V power supply.
The THS4541 is characterized for operation over
the wide temperature range of .40°C to +125°C
and is available in 16-pin VQFN and 10-pin WQFN
packages.