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LMP7732 Datasheet Preview

LMP7732 Datasheet

RRIO Amplifier

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LMP7732
www.ti.com
SNOSAZ0E – AUGUST 2007 – REVISED MARCH 2013
2.9 nV/sqrt(Hz) Low Noise, RRIO Amplifier
Check for Samples: LMP7732
FEATURES
1
23 (Typical Values, TA = 25°C, VS = 5V)
• Input Voltage Noise
– f = 3 Hz 3.3 nV/Hz
– f = 1 kHz 2.9 nV/Hz
• CMRR 130 dB
• Open Loop Gain 130 dB
• GBW 22 MHz
• Slew Rate 2.4 V/µs
• THD 0.001% @ f = 10 kHz, AV = 1, RL = 2 kΩ
• Supply Current 4.4 mA
• Supply Voltage Range 1.8V to 5.5V
• Operating Temperature Range 40°C to 125°C
• Input Bias Current ±1.5 nA
• RRIO
APPLICATIONS
• Gas Analysis Instruments
• Photometric Instrumentation
• Medical Instrumentation
DESCRIPTION
The LMP7732 is a dual low noise, rail-to-rail input
and output, low voltage amplifier. The LMP7732 is
part of the LMP™ amplifier family and is ideal for
precision and low noise applications with low voltage
requirements.
This operational amplifier offers low voltage noise of
2.9 nV/Hz with a 1/f corner of only 3 Hz. The
LMP7732 has bipolar junction input stages with a
bias current of only 1.5 nA. This low input bias
current, complemented by the very low level of
voltage noise, makes the LMP7732 an excellent
choice for photometry applications.
The LMP7732 provides a wide GBW of 22 MHz while
consuming only 4 mA of current. This high gain
bandwidth along with the high open loop gain of 130
dB enables accurate signal conditioning in
applications with high closed loop gain requirements.
The LMP7732 has a supply voltage range of 1.8V to
5.5V, making it an ideal choice for battery operated
portable applications.
The LMP7732 is offered in the 8-Pin SOIC and
VSSOP packages.
The LMP7731 is the single version of this product
and is offered in the 5-Pin SOT-23 and 8-Pin SOIC
packages.
Typical Performance Characteristics
Input Voltage Noise vs. Frequency
Input Current Noise vs. Frequency
100
VS = 2.5V, 3.3V, 5V
100
VS = 2.5V, 3.3V, 5V
10
VCM = 0.5V
VCM = 2.5V
1
0.1
1
10 100 1k 10k
FREQUENCY (Hz)
VCM = 0.5V
10
VCM = 2.5V
1
0.1
1
10
100
1k
10k
FREQUENCY (Hz)
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.
LMP 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 © 2007–2013, Texas Instruments Incorporated




etcTI

LMP7732 Datasheet Preview

LMP7732 Datasheet

RRIO Amplifier

No Preview Available !

LMP7732
SNOSAZ0E – AUGUST 2007 – REVISED MARCH 2013
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings(1)(2)
ESD Tolerance(3)
VIN Differential
Supply Voltage (VS = V+ – V)
Storage Temperature Range
Junction Temperature(4)
Human Body Model
Machine Model
Charge Device Model
Soldering Information
For inputs pins only
For all other pins
Infrared or Convection (20 sec)
Wave Soldering Lead Temp. (10 sec)
2000V
2000V
200V
1000V
±2V
6.0V
65°C to 150°C
+150°C max
235°C
260°C
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but specific performance is not ensured. For ensured specifications and the test
conditions, see the Electrical Characteristics Tables.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
(3) Human Body Model, applicable std. MIL-STD-883, Method 3015.7. Machine Model, applicable std. JESD22-A115-A (ESD MM std. of
JEDEC) Field-Induced Charge-Device Model, applicable std. JESD22-C101-C (ESD FICDM std. of JEDEC).
(4) The maximum power dissipation is a function of TJ(MAX), θJA, and TA. The maximum allowable power dissipation at any ambient
temperature is PD = (TJ(MAX) - TA)/ θJA. All numbers apply for packages soldered directly onto a PC board.
Operating Ratings(1)
Temperature Range
Supply Voltage (VS = V+ – V)
Package Thermal Resistance (θJA)
8-Pin SOIC
8-Pin VSSOP
40°C to 125°C
1.8V to 5.5V
190 °C/W
235°C/W
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but specific performance is not ensured. For ensured specifications and the test
conditions, see the Electrical Characteristics Tables.
2
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Product Folder Links: LMP7732
Copyright © 2007–2013, Texas Instruments Incorporated


Part Number LMP7732
Description RRIO Amplifier
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