THS4524-EP Datasheet, PDF (1/48 Pages) Texas Instruments – VERY LOW POWER, NEGATIVE RAIL INPUT, RAIL-TO-RAIL OUTPUT, FULLY DIFFERENTIAL AMPLIFIER

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THS4524-EP
SBOS609A – JUNE 2012 – REVISED AUGUST 2013
VERY LOW POWER, NEGATIVE RAIL INPUT, RAIL-TO-RAIL OUTPUT,
FULLY DIFFERENTIAL AMPLIFIER
Check for Samples: THS4524-EP
FEATURES
1
•23 Fully Differential Architecture
• Bandwidth: 145 MHz
• Slew Rate: 490 V/μs
• HD₂: –133 dBc at 10 kHz (1 V_RMS, R_L = 1 kΩ)
• HD₃: –140 dBc at 10 kHz (1 V_RMS, R_L = 1 kΩ)
• Input Voltage Noise: 4.6 nV/√Hz (f = 100 kHz)
• THD+N: –112dBc (0.00025%) at 1 kHz
(22-kHz BW, G = 1, 5 V_PP)
• Open-Loop Gain: 119 dB
• NRI—Negative Rail Input
• RRO—Rail-to-Rail Output
• Output Common-Mode Control (With Low
Offset and Drift)
• Power Supply:
– Voltage: +2.5 V (±1.25 V) to +5.5 V (±2.75 V)
– Current: 1.14 mA/ch
• Power-Down Capability: 20 μA (Typical)
APPLICATIONS
• Low-Power SAR and ΔΣ ADC Drivers
• Low-Power Differential Drivers
• Low-Power Differential Signal Conditioning
• Low-Power, High-Performance Differential
Audio Amplifiers
SUPPORTS DEFENSE, AEROSPACE,
AND MEDICAL APPLICATIONS
• Controlled Baseline
• One Assembly/Test Site
• One Fabrication Site
• Available in Military (–55°C/125°C)
Temperature Range ⁽¹⁾
• Extended Product Life Cycle
• Extended Product-Change Notification
• Product Traceability
THS4524 and ADS1278 Combined Performance
1 kW
1.5 nF
5V
V_IN+
V_IN-
1 kW
1 kW
49.9 W
THS4524
V_OCM
1.5 nF
49.9 W
0.1 mF
2.2 nF
AINN1
ADS1278 (CH 1)
AINP1 V_COM
x1
1/2
OPA2350
0.1 mF
1 kW
1-kHz FFT
0
G=1
-20
R_F = R_G = 1 kW
C_F = 1.5 nF
-40
V_S = 5 V
-60
Load = 2 x 49.9 W + 2.2 nF
-80
-100
-120
-140
-160
0
4
8
12
16
20
24 26
Frequency (kHz)
Tone
(Hz)
1k
Signal
(dBFS)
-0.50
SNR (dBc) THD (dBc)
109.1
-107.9
SINAD
(dBc)
105.5
SFDR
(dBc)
113.7
(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.
I²S is a trademark of NXP Semiconductor.
2
All other trademarks are the property of their respective owners.
3
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 © 2012–2013, Texas Instruments Incorporated