THS4524-EP
www.ti.com
SBOS609 –JUNE 2012
VERY LOW POWER, NEGATIVE RAIL INPUT, RAIL-TO-RAIL OUTPUT,
FULLY DIFFERENTIAL AMPLIFIER
Check for Samples: THS4524-EP
1
FEATURES
23
•
Fully Differential Architecture
SUPPORTS DEFENSE, AEROSPACE,
AND MEDICAL APPLICATIONS
•
Bandwidth: 145 MHz
•
•
•
•
Controlled Baseline
•
•
•
•
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Slew Rate: 490 V/μs
One Assembly/Test Site
One Fabrication Site
HD2: –133 dBc at 10 kHz (1 VRMS, RL = 1 kΩ)
HD3: –140 dBc at 10 kHz (1 VRMS, RL = 1 kΩ)
Input Voltage Noise: 4.6 nV/√Hz (f = 100 kHz)
THD+N: –112dBc (0.00025%) at 1 kHz
Available in Military (–55°C/125°C)
Temperature Range
(1)
•
•
•
Extended Product Life Cycle
Extended Product-Change Notification
Product Traceability
(22-kHz BW, G = 1, 5 VPP
)
•
•
•
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Open-Loop Gain: 119 dB
NRI—Negative Rail Input
RRO—Rail-to-Rail Output
THS4524 and ADS1278 Combined Performance
Output Common-Mode Control (With Low
Offset and Drift)
1 kW
1.5 nF
•
Power Supply:
5 V
–
–
Voltage: +2.5 V (±1.25 V) to +5.5 V (±2.75 V)
Current: 1.14 mA/ch
49.9 W
1 kW
AINN1
VIN+
2.2 nF
THS4524
ADS1278 (CH 1)
AINP1 VCOM
49.9 W
VIN-
•
Power-Down Capability: 20 μA (Typical)
1 kW
VOCM
x1
0.1 mF
0.1 mF
1/2
OPA2350
APPLICATIONS
1.5 nF
•
•
•
•
Low-Power SAR and ΔΣ ADC Drivers
Low-Power Differential Drivers
1 kW
1-kHz FFT
0
-20
-40
-60
-80
G = 1
RF = RG = 1 kW
Low-Power Differential Signal Conditioning
CF = 1.5 nF
Low-Power, High-Performance Differential
Audio Amplifiers
VS = 5 V
Load = 2 x 49.9 W + 2.2 nF
-100
-120
-140
-160
0
4
8
12
16
20
24 26
Frequency (kHz)
Tone
(Hz)
1 k
Signal
(dBFS)
-0.50
SINAD
(dBc)
SFDR
(dBc)
113.7
SNR (dBc)
109.1
THD (dBc)
-107.9
105.5
(1) Additional temperature ranges available - contact factory
DESCRIPTION
The THS4524 is a very low-power, fully differential operational amplifier with rail-to-rail output and an input
common-mode range that includes the negative rail. This amplifier is designed for low-power data acquisition
systems and high-density applications where power dissipation is a critical parameter, and provide exceptional
performance in audio applications.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
I2S is a trademark of NXP Semiconductor.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated