THS4532 Dual, Ultra low power 0.25mA, RRO, fully differential amplifier | TI.com

THS4532 (ACTIVE)

Dual, Ultra low power 0.25mA, RRO, fully differential amplifier

Dual, Ultra low power 0.25mA, RRO, fully differential amplifier - THS4532
 

Description

The THS4532 is a low-power, fully-differential amplifier with input common-mode range below the negative rail and rail-to-rail output. The device is designed for low-power data acquisition systems and high density applications where power consumption and dissipation is critical.

The device features accurate output common-mode control that allows for dc coupling when driving analog-to-digital converters (ADCs). This control, coupled with the input common-mode range below the negative rail and rail-to-rail output, allows for easy interface from single-ended ground-referenced signal sources to successive-approximation registers (SARs), and delta-sigma (ΔΣ) ADCs using only single-supply 2.5-V to 5-V power. The THS4532 is also a valuable tool for general-purpose, low-power differential signal conditioning applications.

The device is characterized for operation over the extended industrial temperature range from –40°C to 125°C. The following package options are available:

Features

  • Ultra Low Power:
    • Voltage: 2.5 V to 5.5 V
    • Current: 250 µA
    • Power-Down Mode: 0.5 µA (typ)
  • Fully-Differential Architecture
  • Bandwidth: 36 MHz
  • Slew Rate: 200 V/µs
  • THD: –120 dBc at 1 kHz (1 VRMS, RL= 2 kΩ)
  • Input Voltage Noise: 10 nV/√Hz (f = 1 kHz)
  • High DC Accuracy:
    • VOS: ±100 µV
    • VOS Drift: ±3 µV/°C (–40°C to +125°C)
    • AOL: 114 dB
  • Rail-to-Rail Output (RRO)
  • Negative Rail Input (NRI)
  • Output Common-Mode Control

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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
THS4532
Fully Differential
Voltage FB    
2    
2.5    
5.5    
36    
1    
220    
10    
10    
0.25    
0.4    
In to V-
Out    
Shutdown    
Catalog    
-40 to 125    
TSSOP    
16TSSOP: 32 mm2: 6.4 x 5(TSSOP)    
116    
250000    
3    
27    
26    
128    
137    
0.01    

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