THS4561 Series

Low-power, 60-MHz, wide-supply-range fully differential amplifier

Catalog

Low-power, 60-MHz, wide-supply-range fully differential amplifier

Part	Slew Rate	Voltage - Supply, Single/Dual (±) [Max]	Voltage - Supply, Single/Dual (±) [Min]	Amplifier Type	Board Type	Current - Supply (Main IC)	Output Type	Channels per IC	Supplied Contents	Utilized IC / Part	Current - Output / Channel	-3db Bandwidth	Voltage - Supply Span (Max) [Max]	Voltage - Input Offset	Gain Bandwidth Product	Mounting Type	Package / Case	Package / Case [custom]	Package / Case	Number of Circuits	Current - Input Bias	Operating Temperature [Min]	Operating Temperature [Max]	Current - Supply	Voltage - Supply Span (Min) [Min]	Supplier Device Package
Texas Instruments THS4561DGKEVM	130 V/µs	1.425 V 6.3 V 12.6 V	-6.3 V -1.425 V 2.85 V	Differential	Fully Populated	850 µA	Differential Rail-to-Rail	1 - Single	Board(s)	THS4561	50 mA	70 MHz
Texas Instruments THS4561IDGKR	320 V/µs			Differential			Differential Rail-to-Rail				31 mA	60 MHz	12.6 V	50 µV	68 MHz	Surface Mount	8-MSOP 8-TSSOP	0.118 in	3 mm	1	370 nA	-40 °C	125 °C	825 µA	2.85 V
Texas Instruments THS4561IRGTR	325 V/µs			Differential			Differential Rail-to-Rail				31 mA	45 MHz	12.6 V	50 µV	68 MHz	Surface Mount	16-VFQFN Exposed Pad			1	370 nA	-40 °C	125 °C	825 µA	2.85 V	16-VQFN (3x3)

Catalog

Low-power, 60-MHz, wide-supply-range fully differential amplifier

Key Features

• Bandwidth: 60 MHz (G = 1 V/V)Slew Rate: 230 V/µsGain Bandwidth Product: 68 MHzVoltage Noise:1/f Voltage Noise Corner: 8 HzBroadband Noise (≥ 500 Hz): 4 nV/√HzInput Offset: ±250 µV (Maximum)Drift: ±4 µV/°C (Maximum)Supply Operating Range: 2.85 V to 12.6 VSupply Current: 775 µANegative Rail Input (NRI)Rail-to-Rail Output (RRO)Very Low Harmonic Distortion:HD2: –117 dBc at 2 VPP, 100 kHzHD3: –124 dBc at 2 VPP, 100 kHz0.01% Settling (2-V Step): 90 nsBandwidth: 60 MHz (G = 1 V/V)Slew Rate: 230 V/µsGain Bandwidth Product: 68 MHzVoltage Noise:1/f Voltage Noise Corner: 8 HzBroadband Noise (≥ 500 Hz): 4 nV/√HzInput Offset: ±250 µV (Maximum)Drift: ±4 µV/°C (Maximum)Supply Operating Range: 2.85 V to 12.6 VSupply Current: 775 µANegative Rail Input (NRI)Rail-to-Rail Output (RRO)Very Low Harmonic Distortion:HD2: –117 dBc at 2 VPP, 100 kHzHD3: –124 dBc at 2 VPP, 100 kHz0.01% Settling (2-V Step): 90 ns

Description

The THS4561 fully differential amplifier (FDA) offers a simple interface from single-ended sources to the differential output required by precision analog-to-digital converters (ADCs). Designed for a very low,8-Hz, 1/f voltage noise corner and low, 130-dB total harmonic distortion (THD) while consuming only a775-µA quiescent current, the THS4561 is well suited for power-sensitive data acquisition (DAQ) systems where high performance is required with the best signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR) through the amplifier and ADC combination. The THS4561 features the required negative rail input when interfacing a DC-coupled, ground-centered, source signal to a single-supply, differential-input ADC. Low DC error and drift terms support the emerging high-speed and high-resolution successive approximation register (SAR) and delta-sigma (ΔΣ) ADC input requirements. A 2.85-V to 12.6-V supply range with a flexible output common-mode setting with low headroom to the supplies supports a wide range of ADC input and digital-to-analog converter (DAC) output requirements. The THS4561 device is characterized for operation from –40°C to +125°C. The THS4561 fully differential amplifier (FDA) offers a simple interface from single-ended sources to the differential output required by precision analog-to-digital converters (ADCs). Designed for a very low,8-Hz, 1/f voltage noise corner and low, 130-dB total harmonic distortion (THD) while consuming only a775-µA quiescent current, the THS4561 is well suited for power-sensitive data acquisition (DAQ) systems where high performance is required with the best signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR) through the amplifier and ADC combination. The THS4561 features the required negative rail input when interfacing a DC-coupled, ground-centered, source signal to a single-supply, differential-input ADC. Low DC error and drift terms support the emerging high-speed and high-resolution successive approximation register (SAR) and delta-sigma (ΔΣ) ADC input requirements. A 2.85-V to 12.6-V supply range with a flexible output common-mode setting with low headroom to the supplies supports a wide range of ADC input and digital-to-analog converter (DAC) output requirements. The THS4561 device is characterized for operation from –40°C to +125°C.