Packaging information
| Package | Pins VSSOP (DGK) | 8 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 2,500 | LARGE T&R |
Features for the THS4561
- Bandwidth: 60 MHz (G = 1 V/V)
- Slew Rate: 230 V/µs
- Gain Bandwidth Product: 68 MHz
- Voltage Noise:
- 1/f Voltage Noise Corner: 8 Hz
- Broadband Noise (≥ 500 Hz): 4 nV/√ Hz
- Input Offset: ±250 µV (Maximum)
- Drift: ±4 µV/°C (Maximum)
- Supply Operating Range: 2.85 V to 12.6 V
- Supply Current: 775 µA
- Negative Rail Input (NRI)
- Rail-to-Rail Output (RRO)
- Very Low Harmonic Distortion:
- HD2: –117 dBc at 2 VPP, 100 kHz
- HD3: –124 dBc at 2 VPP, 100 kHz
- 0.01% Settling (2-V Step): 90 ns
Description for the THS4561
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.