1 Features
• Low power CMOS amplifier for cost-optimized
applications
• Operational from supply voltage as low as 1.2 V
• Low input bias current: 1-pA typical, 12-pA
maximum
• Low quiescent current: 10 μA/ch
• Low integrated noise of 6.5 μVp-p in 0.1 Hz – 10 Hz
• Rail-to-rail input and output
• High gain bandwidth product: 350 kHz
• Thermal noise floor: 64 nV/√Hz
• Low input offset voltage: ±0.6 mV
• Unity-gain stable
• Robustly drives 100 pF of load capacitance
• Internal RFI and EMI filtered input pins
• Wide specified temperature range: –40°C to 125°C

2 Applications
• Portable electronics
• Wearable fitness and activity monitor
• Headsets/headphones and earbuds
• Personal electronics
• Building automation
• Wearables (non-medical)
• Motion detector (PIR, uWave, etc.)
• Electronic point of sales (EPOS)
• Single-supply, low-side, unidirectional currentsensing
circuit

3 Description
The low-power TLV904x family includes single
(TLV9041), dual (TLV9042), and quad-channel
(TLV9044) ultra-low-voltage (1.2 V to 5.5 V)
operational amplifiers (op-amps) with rail-to-rail input
and output swing capabilities. The TLV904x enables
power savings both with its low quiescent current
(10 μA, typ.) and the ability to operate at supply
voltages as low as 1.2 V, making it one of the few
amplifiers in the industry capable of 1.5-V coin cell
applications. Further power savings can be achieved
using the shutdown mode (TLV9041S, TLV9042S,
and TLV9044S) that allows the amplifiers to be
switched off and enter into a standby mode with
typical current consumption of less than 150 nA.
These devices offer a cost-effective amplifier solution
for power and space-constrained applications such
as battery-powered IoT devices, wearable electronics,
and personal electronics where low-voltage operation
is crucial.
The robust design of the TLV904x family simplifies
circuit design. These op-amps feature an integrated
RFI and EMI rejection filter, unity-gain stability, and
no-phase reversal in input overdrive conditions. The
device also delivers excellent AC performance with
a gain bandwidth of 350 kHz and a high cap load
drive of 100 pF, enabling designers to achieve both
improved performance and lower power consumption.
Space-saving micro-size packages, such as X2QFN
and WSON, are offered for all channel variants
(single, dual, and quad), along with industry-standard
packages such as SOIC, VSSOP, TSSOP, and
SOT-23 packages.