High-Speed Differential I/O Amplifier - THS4541

THS4541 (ACTIVE)

High-Speed Differential I/O Amplifier

 

Description

The THS4541 is a low-power, voltage-feedback, fully differential amplifier (FDA) with an input common-mode range below the negative rail, and rail-to-rail output. Designed for low-power data acquisition systems where high density is critical in a high-performance analog-to-digital converter (ADC) or digital-to-analog converter (DAC) interface design.

The THS4541 features the negative-rail input required when interfacing a dc-coupled, ground-centered, source signal. This negative-rail input, with rail-to-rail output, allows for easy interface between single-ended, ground-referenced, bipolar signal sources and a wide variety of SAR, ΔΣ, or pipeline ADCs using only a single +2.7-V to +5.4-V power supply.

The THS4541 is characterized for operation over the wide temperature range of –40°C to 125°C available in 16-pin VQFN and 10-pin WQFN packages.

Features

  • Fully Differential Amplifier (FDA) Architecture
  • Bandwidth: 500 MHz (G = 2 V/V)
  • Gain Bandwidth Product: 850 MHz
  • Slew Rate: 1500 V/µs
  • HD2: –95 dBc at 10 MHz (2 VPP, RL = 500 Ω)
  • HD3: –90 dBc at 10 MHz (2 VPP, RL = 500 Ω)
  • Input Voltage Noise: 2.2 nV/Hz (f > 100 kHz)
  • Low offset drift: ±0.5 µV/°C (typ)
  • Negative Rail Input (NRI)
  • Rail-to-Rail Output (RRO)
  • Robust Operation for Rload ≥ 50 Ω
  • Output Common-Mode Control
  • Power Supply:
    • Single-Supply Voltage Range: 2.7 V to 5.4 V
    • Split-Supply Voltage Range: ±1.35 V to ±2.7 V
    • Quiescent Current: 10.1 mA (5-V Supply)
  • Power-Down Capability: 2 µA (typ)

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Parametrics Compare all products in High-Speed Op Amps (>=50MHz)

 
Architecture
Number of Channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
BW @ Acl (MHz)
Acl, min spec gain (V/V)
Slew Rate (Typ) (V/us)
Vn at Flatband (Typ) (nV/rtHz)
Vn at 1kHz (Typ) (nV/rtHz)
Iq per channel (Typ) (mA)
Vos (Offset Voltage @ 25C) (Max) (mV)
Rail-to-Rail
Features
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
CMRR (Typ) (dB)
Input Bias Current (Max) (pA)
Offset Drift (Typ) (uV/C)
GBW (Typ) (MHz)
Output Current (Typ) (mA)
2nd Harmonic (dBc)
3rd Harmonic (dBc)
@ MHz
THS4541 THS4521 THS4522 THS4524 THS4531A THS4532 THS4551 THS4552
Fully Differential
Voltage FB   
Voltage FB    Voltage FB    Fully Differential
Voltage FB   
Fully Differential
Voltage FB   
Fully Differential
Voltage FB   
Bipolar
Fully Differential
Voltage FB   
Bipolar
Fully Differential
Voltage FB   
1    1    2    4    1    2    1    2   
2.7    2.5    2.5    2.5    2.5    2.5    2.7    2.7   
5.4    5.5    5.5    5.5    5.5    5.5    5.4    5.4   
620    145    145    145    36    36    150    150   
1    1    1    1    1    1    1    1   
1500    490    490    490    220    220    220    220   
2.2    4.6    4.6    4.6    10    10    3.3    3.3   
33    5.2    5.2    5.2    10    10    3.3    3.3   
10.1    1.14    1.14    1.14    0.25    0.25    1.35    1.37   
0.45    2    2    2    0.4    0.4    0.175    0.265   
In to V-
Out   
In to V-
Out   
In to V-
Out   
In to V-
Out   
In to V-
Out   
In to V-
Out   
In to V-
Out   
In to V-
Out   
Shutdown    Shutdown    Shutdown    Shutdown    Shutdown    Shutdown    Shutdown    Shutdown   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 125    -40 to 85    -40 to 85    -40 to 85    -40 to 125    -40 to 125    -40 to 125    -40 to 125   
QFN
VQFN   
SOIC
VSSOP   
TSSOP    TSSOP    QFN
SOIC
VSSOP   
TSSOP    QFN
VQFN
VSSOP   
TSSOP
WQFN   
10QFN: 4 mm2: 2 x 2(QFN)
16VQFN: 9 mm2: 3 x 3(VQFN)   
8SOIC: 29 mm2: 6 x 4.9(SOIC)
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
16TSSOP: 32 mm2: 6.4 x 5(TSSOP)    38TSSOP: 62 mm2: 6.4 x 9.7(TSSOP)    10QFN: 4 mm2: 2 x 2(QFN)
8SOIC: 29 mm2: 6 x 4.9(SOIC)
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
16TSSOP: 32 mm2: 6.4 x 5(TSSOP)    10QFN: 4 mm2: 2 x 2(QFN)
16VQFN: 9 mm2: 3 x 3(VQFN)
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
16TSSOP: 32 mm2: 6.4 x 5(TSSOP)
24WQFN: 16 mm2: 4 x 4(WQFN)   
100    102    102    102    116    116    110    110   
13000000    900000    900000    900000    250000    250000    1500000    1500000   
0.5    2    2    2    3    3    0.45    0.45   
850    95    95    95    27    27    135    135   
100    55    55    55    26    26    45    65   
140    133    133    133    129    128    128    128   
140    141    141    141    138    137    139    139   
0.1    0.001    0.001    0.001    0.001    0.01    0.1    0.1   

Other qualified versions of THS4541

Version Part Number Definition
Automotive THS4541-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects