THS4541 High-Speed Differential I/O Amplifier | TI.com

THS4541 (ACTIVE)

High-Speed Differential I/O Amplifier

High-Speed Differential I/O Amplifier - THS4541
 

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 (GBW>=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 THS4524 THS4531A THS4551 THS4552 THS4561
Fully Differential     Fully Differential
Voltage FB    
Fully Differential
Voltage FB    
Bipolar
Fully Differential
Voltage FB    
Bipolar
Fully Differential
Voltage FB    
Fully Differential    
1     4     1     1     2     1    
2.7     2.5     2.5     2.7     2.7     2.85    
5.4     5.5     5.5     5.4     5.4     12.6    
620     145     36     150     150     70    
1     1     1     1     1     1    
1500     490     220     220     220     130    
2.2     4.6     10     3.3     3.3     5    
33     5.2     10     3.3     3.3     5    
10.1     1.14     0.25     1.35     1.37     0.82    
0.45     2     0.4     0.175     0.265     0.2    
In to V-
Out    
In to V-
Out    
In to V-
Out    
In to V-
Out    
In to V-
Out    
In to V-
Out    
Small Size
Shutdown    
Shutdown     Small Size
Shutdown    
Small Size
Shutdown    
Shutdown     Shutdown    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 125     -40 to 85     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
QFN
VQFN    
TSSOP     QFN
SOIC
VSSOP    
QFN
VQFN
VSSOP    
TSSOP
WQFN    
VQFN
VSSOP    
10QFN: 4 mm2: 2 x 2(QFN)
16VQFN: 9 mm2: 3 x 3(VQFN)    
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)    
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)    
16VQFN: 9 mm2: 3 x 3(VQFN)
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)    
100     102     116     110     110     110    
13000000     900000     250000     1500000     1500000