THS4513_14 Datasheet, PDF (1/42 Pages) Texas Instruments – WIDEBAND, LOW-NOISE, LOW-DISTORTION FULLY-DIFFERENTIAL AMPLIFIER

THS4513
www.ti.com
SLOS472E – AUGUST 2005 – REVISED JANUARY 2013
WIDEBAND, LOW-NOISE, LOW-DISTORTION,
FULLY-DIFFERENTIAL AMPLIFIER
Check for Samples: THS4513
FEATURES
1
•23 Fully-Differential Architecture
• Centered Input Common-Mode Range
• Minimum Gain of 1 V/V (0 dB)
• Bandwidth: 1600 MHz
• Slew Rate: 5100 V/μs
• 1% Settling Time: 2.9 ns
• HD₂: –75 dBc at 70 MHz
• HD₃: –86 dBc at 70 MHz
• OIP₂: 77 dBm at 70 MHz
• OIP₃: 42 dBm at 70 MHz
• Input Voltage Noise: 2.2 nV/√Hz (f > 10 MHz)
• Noise Figure: 19.8 dB
• Output Common-Mode Control
• Power Supply:
– Voltage: 3 V (±1.5 V) to 5 V (±2.5 V)
– Current: 37.7 mA
• Power-Down Capability: 0.65 mA
APPLICATIONS
• 5-V Data Acquisition Systems, High Linearity
ADC Amplifier
• Wireless Communication
• Medical Imaging
• Test and Measurement
RELATED PRODUCTS
DEVICE
THS4508
THS4509
THS4511
THS4513
MIN. GAIN
6 dB
6 dB
0 dB
0 dB
COMMON-MODE RANGE OF
INPUT⁽¹⁾
–0.3 V to 2.3 V
1.1 V to 3.9 V
–0.3 V to 2.3 V
1.1 V to 3.9 V
1. Assumes a 5-V single-ended power supply.
DESCRIPTION
The THS4513 is a wideband, fully-differential op amp
designed for 3.3-V to 5-V data acquisition systems. It
has very low noise at 2.2 nV/√Hz, and extremely low
harmonic distortion of –75 dBc HD₂ and –86 dBc HD₃
at 70 MHz with 2-V_PP output, G = 0 dB, and 200-Ω
load. Slew rate is very high at 5100 V/μs and with
settling time of 2.9 ns to 1% (2-V step), it is ideal for
pulsed applications. It is designed for a minimum gain
of 0 dB.
To allow for dc-coupling to analog-to-digital
converters (ADCs), its unique output common-mode
control circuit maintains the output common-mode
voltage within 5-mV offset (typ) from the set voltage,
when set within 0.5 V of midsupply, with less than 4-
mV differential offset voltage. The common-mode set
point is set to midsupply by internal circuitry, which
may be overdriven from an external source.
The input and output are optimized for best
performance with their common-mode voltages set to
midsupply. Along with high performance at low
power-supply voltage, this design makes it ideal for
extremely high-performance, single-supply 5-V data
acquisition systems.
The THS4513 is offered in a quad, leadless QFN-16
package (RGT), and is characterized for operation
over the full industrial temperature range from –40°C
to +85°C.
60 MHz Low-Pass Filter
6.8 pF
50-W
VIN
Single-
Ended
AC-Coupled
Source
50 W
0.22 mF
340 W
56.2 W
0.22 mF
340 W
56.2 W
0.22 mF
348 W
2.5 V
25 W
THS4513
25 W
CM
-2.5 V
348 W
0.1 mF
To 50-W Test
Equipment
1:1
VOUT
0.1 mF
6.8 pF
Low-Pass Filter Response
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
-24
-26
0.1
1
10
100
f - Frequency (MHz)
1000
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 Incorporated.
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 © 2005–2013, Texas Instruments Incorporated