THS4281 Series

Very Low-Power High Speed Rail-To-Rail Input/Output Voltage Feedback Operational Amplifier

Catalog

Very Low-Power High Speed Rail-To-Rail Input/Output Voltage Feedback Operational Amplifier

Part	Amplifier Type	Mounting Type	Slew Rate	Voltage - Supply Span (Max) [Max]	Current - Output / Channel	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply Span (Min) [Min]	Current - Supply	Voltage - Input Offset	-3db Bandwidth	Package / Case	Package / Case [custom]	Package / Case	Number of Circuits	Output Type	Current - Input Bias	Supplier Device Package	Package / Case [y]	Package / Case [x]	Board Type	Voltage - Supply, Single/Dual (±) [Min]	Voltage - Supply, Single/Dual (±) [Max]	Channels per IC	Supplied Contents	Current - Supply (Main IC)	Utilized IC / Part
Texas Instruments THS4281DGK	Voltage Feedback	Surface Mount	35 V/µs	16.5 V	60 mA	85 °C	-40 °C	2.7 V	800 çA	500 çV	95 MHz	8-MSOP 8-TSSOP	0.118 in	3 mm	1	Rail-to-Rail	500 nA
Texas Instruments THS4281DR	Voltage Feedback	Surface Mount	35 V/µs	16.5 V		85 °C	-40 °C	2.7 V	800 çA	500 çV	95 MHz	8-SOIC			1	Rail-to-Rail	500 nA	8-SOIC	3.9 mm	0.154 in
Texas Instruments THS4281EVM	Voltage Feedback		35 V/µs		60 mA						95 MHz					Rail-to-Rail Single-Ended					Fully Populated	1.35 V 2.7 V	8.25 V 16.5 V	1 - Single	Board(s)	800 µA	THS4281
Texas Instruments THS4281DBVTG4	Voltage Feedback	Surface Mount	35 V/µs	16.5 V		85 °C	-40 °C	2.7 V	800 çA	500 çV	95 MHz	SC-74A SOT-753			1	Rail-to-Rail	500 nA	SOT-23-5
Texas Instruments THS4281DBVT	Voltage Feedback	Surface Mount	35 V/µs	16.5 V	60 mA	85 °C	-40 °C	2.7 V	800 çA	500 çV	95 MHz	SC-74A SOT-753			1	Rail-to-Rail	500 nA	SOT-23-5
Texas Instruments THS4281DGKR	Voltage Feedback	Surface Mount	35 V/µs	16.5 V		85 °C	-40 °C	2.7 V	800 çA	500 çV	95 MHz	8-MSOP 8-TSSOP	0.118 in	3 mm	1	Rail-to-Rail	500 nA

Catalog

Very Low-Power High Speed Rail-To-Rail Input/Output Voltage Feedback Operational Amplifier

Key Features

• Very Low Quiescent Current: 750 µA (at 5 V)Rail-to-Rail Input and Output:Common-Mode Input Voltage Extends400 mV Beyond the RailsOutput Swings Within 150 mV From the RailsWide –3-dB Bandwidth at 5 V:90 MHz at Gain = +1, 40 MHz at Gain = +2High Slew Rate: 35 V/µsFast Settling Time (2-V Step):78 ns to 0.1%150 ns to 0.01%Low Distortion at Gain = +2, VO= 2-VPP, 5 V:–91 dBc at 100 kHz, –67 dBc at 1 MHzInput Offset Voltage: 2.5 mV (Max at +25°C)Output Current > 30 mA (10-Ω Load, 5 V)Low Voltage Noise of 12.5 nV/√HzSupply Voltages: +2.7 V, 3 V, +5 V, ±5 V, +15 VPackages: SOT23, MSOP, and SOICAPPLICATIONSPortable/Battery-Powered ApplicationsHigh Channel Count SystemsADC BufferActive FiltersCurrent SensingAll other trademarks are the property of their respective owners.Very Low Quiescent Current: 750 µA (at 5 V)Rail-to-Rail Input and Output:Common-Mode Input Voltage Extends400 mV Beyond the RailsOutput Swings Within 150 mV From the RailsWide –3-dB Bandwidth at 5 V:90 MHz at Gain = +1, 40 MHz at Gain = +2High Slew Rate: 35 V/µsFast Settling Time (2-V Step):78 ns to 0.1%150 ns to 0.01%Low Distortion at Gain = +2, VO= 2-VPP, 5 V:–91 dBc at 100 kHz, –67 dBc at 1 MHzInput Offset Voltage: 2.5 mV (Max at +25°C)Output Current > 30 mA (10-Ω Load, 5 V)Low Voltage Noise of 12.5 nV/√HzSupply Voltages: +2.7 V, 3 V, +5 V, ±5 V, +15 VPackages: SOT23, MSOP, and SOICAPPLICATIONSPortable/Battery-Powered ApplicationsHigh Channel Count SystemsADC BufferActive FiltersCurrent SensingAll other trademarks are the property of their respective owners.

Description

Fabricated using the BiCom-II process, the THS4281 is a low-power, rail-to-rail input and output, voltage-feedback operational amplifier designed to operate over a wide power-supply range of 2.7-V to 15-V single supply, and ±1.35-V to ±7.5-V dual supply. Consuming only 750 µA with a unity gain bandwidth of 90 MHz and a high 35-V/µs slew rate, the THS4281 allows portable or other power-sensitive applications to realize high performance with minimal power. To ensure long battery life in portable applications, the quiescent current is trimmed to be less than 900 µA at +25°C, and 1 mA from –40°C to +85°C. The THS4281 is a true single-supply amplifier with a specified common-mode input range of 400 mV beyond the rails. This allows for high-side current sensing applications without phase reversal concerns. Its output swings to within 40 mV from the rails with 10-kΩ loads, and 150 mV from the rails with 1-kΩ loads. The THS4281 has a good 0.1% settling time of 78 ns, and 0.01% settling time of 150 ns. The low THD of –87 dBc at 100 kHz, coupled with a maximum offset voltage of less than 2.5 mV, makes the THS4281 a good match for high-resolution ADCs sampling less than 2 MSPS. The THS4281 is offered in a space-saving SOT23-5 package, a small MSOP-8 package, and the industry standard SOIC-8 package. Fabricated using the BiCom-II process, the THS4281 is a low-power, rail-to-rail input and output, voltage-feedback operational amplifier designed to operate over a wide power-supply range of 2.7-V to 15-V single supply, and ±1.35-V to ±7.5-V dual supply. Consuming only 750 µA with a unity gain bandwidth of 90 MHz and a high 35-V/µs slew rate, the THS4281 allows portable or other power-sensitive applications to realize high performance with minimal power. To ensure long battery life in portable applications, the quiescent current is trimmed to be less than 900 µA at +25°C, and 1 mA from –40°C to +85°C. The THS4281 is a true single-supply amplifier with a specified common-mode input range of 400 mV beyond the rails. This allows for high-side current sensing applications without phase reversal concerns. Its output swings to within 40 mV from the rails with 10-kΩ loads, and 150 mV from the rails with 1-kΩ loads. The THS4281 has a good 0.1% settling time of 78 ns, and 0.01% settling time of 150 ns. The low THD of –87 dBc at 100 kHz, coupled with a maximum offset voltage of less than 2.5 mV, makes the THS4281 a good match for high-resolution ADCs sampling less than 2 MSPS. The THS4281 is offered in a space-saving SOT23-5 package, a small MSOP-8 package, and the industry standard SOIC-8 package.