THS3115CPWP Datasheet, PDF (1/35 Pages) Texas Instruments – LOW-NOISE, HIGH-SPEED, CURRENT FEEDBACK AMPLIFIERS

THS3112
THS3115
www.ti.com
SLOS385C – SEPTEMBER 2001 – REVISED SEPTEMBER 2010
LOW-NOISE, HIGH-SPEED, CURRENT FEEDBACK AMPLIFIERS
Check for Samples: THS3112, THS3115
FEATURES
1
•23 Low Noise:
– 2.9-pA/√Hz Noninverting Current Noise
– 10.8-pA/√Hz Inverting Current Noise
– 2.2-nV/√Hz Voltage Noise
• Wide Supply Voltage Range: ±5 V to ± 15 V
• Wide Output Swing:
– 25-V_PP Output Voltage, R_L = 100 Ω, ±15-V
Supply
• High Output Current: 150 mA (Min)
• High Speed:
– 110-MHz (–3-dB BW, G = 1, ±15 V)
– 1550-V/µs Slew Rate (G = 2, ±15 V)
• Low Distortion (G = 2):
– –78 dBc (1 MHz, 2 V_PP, 100-Ω Load)
• Low-Power Shutdown (THS3115)
– 300-µA Shutdown Quiescent Current per
Channel
• Standard SOIC, SOIC PowerPAD™, and
TSSOP PowerPAD Packages
• Evaluation Module Available
space
APPLICATIONS
• Communication Equipment
• Video Distribution
• Motor Drivers
• Piezo Drivers
DESCRIPTION
The THS3112/5 are low-noise, high-speed current
feedback amplifiers, ideal for any application requiring
high output current. The low noninverting current
noise of 2.9 pA/√Hz and the low inverting current
noise of 10.8 pA/√Hz increase signal-to-noise ratios
for enhanced signal resolution. The THS3112/5 can
operate from ±5-V to ±15-V supply voltages, while
drawing as little as 4.5 mA of supply current per
channel. It offers low –78-dBc total harmonic
distortion driving 2 V_PP into a 100-Ω load. The
THS3115 features a low-power shutdown mode,
consuming only 300-mA shutdown quiescent current
per channel. The THS3112/5 are packaged in
standard SOIC, SOIC PowerPAD™, and TSSOP
PowerPAD packages.
VOLTAGE NOISE AND CURRENT NOISE
vs
FREQUENCY
100
V_CC = ±5 V to ±15 V
T_A = +25°C
THS3112
SOIC (D) AND
SOIC PowerPAD™ (DDA) PACKAGE
(TOP VIEW)
I_n-
10
I_n+
V_n
1 OUT
1 IN-
1 IN+
V_CC-
1
8
2
7
3
6
4
5
V_CC+
2 OUT
2 IN-
2 IN+
1
10
100
1k
10 k 100 k
f - Frequency - Hz
THS3115
SOIC (D) AND
TSSOP PowerPAD™ (PWP) PACKAGE
(TOP VIEW)
1 OUT 1
1 IN- 2
1 IN+ 3
V_{CC- 4}
N/C 5
REF 6
N/C 7
14 ^V_CC+
13 2 OUT
12 2 IN-
11 2 IN+
10 N/C
9 SHUTDOWN
8 N/C
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.
PowerPAD is a trademark of Texas Instruments.
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 © 2001–2010, Texas Instruments Incorporated