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The THS4551 fully differential amplifier provides a simple interface between single-ended sources and differential outputs to meet the needs of a wide range of high precision analogue-to-digital converters (ADCs). The combination of excellent DC accuracy, low noise and robust capacitive load drive makes it ideal for data acquisition systems with high accuracy requirements, while the amplifier and ADC work together to achieve excellent signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR).

The THS4551 has the required negative supply rail input for connecting a DC-coupled, ground-centred source signal to a single-supply differential input ADC with ultra-low DC error and drift to meet emerging 16 to 20-bit successive approximation register (SAR) input requirements. The wide range output common-mode control supports ADC operation from 1.8V to 5V supplies for ADC common-mode input requirements from 0.7V to 3.0V and beyond.

The THS4551 devices are rated for operation over a wide temperature range of -40°C to +125°C and are available in an 8-pin ultra-thin small form factor (VSSOP) package, a 16-pin ultra-thin quad flat leadless (VQFN) package and a 10-pin ultra-thin quad flat leadless (WQFN) package.

Features

Bandwidth: 150MHz (G = 1V/V)

Differential output swing rate: 220V/µs

Gain bandwidth product: 135MHz

Negative rail input (NRI), rail-to-rail output (RRO)

Wide output common mode control range

Single supply operating voltage range: 2.7V to 5.4V

Trimmed supply current: 1.37 mA at 5 V

25°C input detuning voltage: ±175µV (max)

Input detuned voltage drift: ±1.8µV/°C (max)

Differential input voltage noise: 3.3nV/√Hz

HD2: -128dBc (at 2VPP, 100kHz)

HD3: -139dBc (at 2VPP, 100kHz)

Stabilisation time of less than 50ns: 4V step with 0.01% tolerance

18-bit stabilisation time: 4V step, less than 500ns

Applications

24-bit Delta Sigma (Δ∑) ADC driver

16 to 20-bit differential high-speed SAR drivers

Differential active filters

Differential mutual impedance amplifier

Pin-compatible upgrade to THS4521 (VSSOP-8 only)

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.