Texas Instruments

THS4561IDGKR

Amplifiers & Comparators

Manufacturer
MPN
THS4561IDGKR
Package / Case
MSOP-8
Key Attributes
THS4561 Low-Power, Wide Supply Voltage Range, 60MHz, Fully Differential Amplifier

Technical Specifications

TypeDescription
Common Mode Rejection Ratio110 dB
Gain Bandwidth Product68 MHz
Voffset V250 V
Quiescent Current775 µA
Output Current20 mA
Rail To RailRail-to-rail output
Settling Time90ns
Output TypeDifferential
Input Offset Current(Ios)2nA
Input Offset Current Drift (Ios TC)40pA/°C
Ib - Input Bias Current600nA
TypeDescription
Maximum Power Supply Range (Vdd-Vss)12.6V
Power Supply Rejection Ratio (PSRR)110dB
Noise density(eN)4nV/sqrtHz@500Hz
Channels1
Slew Rate Vus230 V/µs
Operating Temperature-40°C~+125°C
Voffset Drift Uv4 µV
FeaturesSingle-ended to differential conversion;Enable/shutdown function;Adjustable output common-mode voltage
Single Supply2.85V~12.6V
Package / CaseMSOP-8

Product Introduction

The THS4561 fully differential amplifier (FDA) provides a simple interface between a single-ended source and a differential output to meet the requirements of precision analog-to-digital converters (ADCs). The THS4561 features an ultra-low 1/f voltage noise corner frequency of 8 Hz and a low total harmonic distortion (THD) of 130 dB, while consuming only 775 µA of quiescent current. It is well-suited for power-sensitive data acquisition (DAQ) systems that require a combination of an amplifier and an ADC to improve the signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR) for high performance. The THS4561 has the required negative supply rail input for connecting DC-coupled, ground-centered source signals to single-supply differential-input ADCs. Low DC errors and temperature drift terms meet the input requirements of emerging high-speed and high-resolution successive approximation register (SAR) and Δ - Σ ADCs. The 2.85 V to 12.6 V supply voltage range, flexible output common-mode setting, and low supply headroom help meet the requirements of various ADC inputs and digital-to-analog converter (DAC) outputs. The THS4561 device is specified for operation from – 40°C to +125°C.

Features

  • Bandwidth: 60MHz (G = 1V/V)
  • Slew Rate: 230V/µs
  • Gain Bandwidth Product: 68MHz
  • Voltage Noise:
  • 1/f Voltage Noise Corner Frequency: 8Hz
  • Wideband Noise (≥500Hz): 4nV/√Hz
  • Input Offset Voltage: ±250µV (Maximum)
  • Temperature Drift: ±4µV/°C (Maximum)
  • Supply Voltage Range: 2.85V to 12.6V
  • Supply Current: 775µA
  • Negative Rail Input (NRI)
  • Rail-to-Rail Output (RRO)
  • Ultra-Low Harmonic Distortion:
  • HD2: –117dBc (at 2VPP, 100kHz)
  • HD3: –124dBc (at 2VPP, 100kHz)
  • 0.01% Settling Time (2V Step): 90ns

Applications

  • 16-bit to 20-bit, differential SAR and Δ-Σ drivers
  • Differential active filters
  • High output swing PCM audio DAC output
  • Medical ultrasound
  • Battery testers
  • Power analyzers
  • Low-power alternative to THS4551
  • PCM audio DAC output with 10V/V gain and 50kHz second-order MFB filter

Datasheet

📄 Open Download

Alternative Parts

Common THS4561IDGKR alternatives overseas buyers search for:

Compliance & Export Codes

TypeDetails
RoHSROHS3
ECCNEAR99
CNHTS8542339000
USHTS8542330001
TARIC8542339000
TypeDetails
CAHTS8542330000
BRHTS85423390
INHTS85423300
MXHTS8542.33.99

Sourcing Information

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