|Category||Semiconductors => Amplifiers => Instrumentation Amplifiers|
|Part family||INA322 Micropower Single-Supply CMOS Instrumentation Amplifier|
|Description||Micropower Single-Supply CMOS Instrumentation Amplifier 8-VSSOP -55 to 125|
|Company||Texas Instruments, Inc.|
|Datasheet||Download INA322 datasheet
|Cross ref.||Similar parts: LTC6800HMS8, LTC6800HMS8#PBF, LTC6800HMS8#TR, LTC6800HMS8#TRPBF, INA155E/250, INA155EA/250, INA155EA/2K5, INA156EA/250, INA156EA/2K5|
|Input Offset (+/-)(Max)(uV)||10000|
|Noise at 0.1 Hz - 10 Hz(Typ)(uVpp)||20|
|Input Bias Current (+/-)(Max)(nA)||0.01|
|Gain Error (+/-)(Max)(%)||0.4|
|Approx. Price (US$)||0.95 | 1ku|
|Input Offset Drift (+/-)(Max)(uV/C)||7|
|Operating Temperature Range(C)||-55 to 125|
|Number of Channels(#)||1|
|Bandwidth at Min Gain(Typ)(MHz)||0.5|
|Noise at 1kHz(Typ)(nV/rt(Hz))||100|
|Gain Non-Linearity (+/-)(Max)(%)||0.01|
|Pin nb||Package type||Ind std||JEDEC code||Package qty||Carrier||Device mark||Width (mm)||Length (mm)||Thick (mm)||Pitch (mm)|
|INA322 TINA-TI Spice Model (Rev. A) - ZIP (10/04/2011)|
|INA322 PSpice Model (Rev. A) - ZIP (10/04/2011)|
q LOW COST q LOW QUIESCENT CURRENT: 40µA/channel Shut Down: 1µA q HIGH GAIN ACCURACY: 2ppm/°C q GAIN SET WITH EXTERNAL RESISTORS q LOW BIAS CURRENT: 10pA q BANDWIDTH: 5V/V q RAIL-TO-RAIL OUTPUT SWING: (V+) 0.02V q WIDE TEMPERATURE RANGE: +125°C q SINGLE VERSION IN MSOP-8 PACKAGE AND DUAL VERSION IN TSSOP-14 PACKAGEAPPLICATIONS
q INDUSTRIAL SENSOR AMPLIFIERS: Bridge, RTD, Thermistor, Position q PHYSIOLOGICAL AMPLIFIERS: ECG, EEG, EMG q A/D CONVERTER SIGNAL CONDITIONING q DIFFERENTIAL LINE RECEIVERS WITH GAIN q FIELD UTILITY METERS q PCMCIA CARDS q COMMUNICATION SYSTEMS q TEST EQUIPMENT q AUTOMOTIVE INSTRUMENTATIONDESCRIPTION
The INA322 family is a series of low cost, rail-to-rail output, micropower CMOS instrumentation amplifiers that offer wide-range, single-supply, as well as bipolarsupply operation. The INA322 family provides lowcost, low-noise amplification of differential signals with micropower current consumption of 40µA. When shutdown the INA322 has a quiescent current of less than 1µA. Returning to normal operations within nanoseconds, the shutdown feature makes the INA322 optimal for low-power battery or multiplexing applications.
Configured internally for 5V/V gain, the INA322 offers exceptional flexibility with user-programmable external gain resistors. The INA322 reduces common-mode error over frequency and with CMRR remaining high to 3kHz, line noise and line harmonics are rejected. The low-power design does not compromise on bandwidth or slew rate, making the INA322 ideal for driving sampling Analog-to-Digital (A/D) converters as well as general-purpose applications. With high precision, low cost, and small packaging, the INA322 outperforms discrete designs, while offering reliability and performance.BOLDFACE limits apply over the specified temperature range, TO 125°C
= 25, and IA common VS /2, unless otherwise noted. INA322EA INA2322EA PARAMETER INPUT Input Offset Voltage, RTI Over Temperature vs Temperature vs Power Supply Over Temperature Long-Term Stability Input Impedance Input Common-Mode Range Common-Mode Rejection Over Temperature Crosstalk, Dual INPUT BIAS CURRENT Bias Current Offset Current NOISE, RTI Voltage Noise: to 10Hz Current Noise: 1kHz GAIN(1) Gain Equation, Externally Set Range of Gain Error vs Temperature Nonlinearity Over Temperature OUTPUT Output Voltage Swing from Rail(2, 5) Over Temperature Capacitance Load Drive Short-Circuit Current FREQUENCY RESPONSE Bandwidth, 3dB Slew Rate Settling Time, 0.1% 0.01% Overload Recovery POWER SUPPLY Specified Voltage Range Operating Voltage Range Quiescent Current per Channel Over Temperature Shutdown Quiescent Current/Chan TEMPERATURE RANGE Specified Range Operating/Storage Range Thermal Resistance IB IOS 0.05 to ISC ISC+ = 2V step 50% Input Overload +2.7 IQ ISD VSD > 2.5(4) VSD 40 0.01 See Typical Curve(3) 5(R2/R1) V/V % ppm/°C pF mA kHz V/µs µA °C °C/W CONDITION = +5V VOS dVOS/dT PSRR MIN TYP ±2 MAX UNITS mV µV/°C µV/V µV/month dB pA nV/Hz µVp-p fA/Hz
NOTES: (1) Does not include errors from external gain setting resistors (2) Output voltage swings are measured between the output and power-supply rails. Output swings and rail only 10. (3) See typical performance curve "Percent Overshoot vs Load Capacitance." (4) See typical performance curve "Shutdown Voltage vs Supply Voltage." (5) Output does not swing to positive rail if gain is less than 10.Shutdown A VOUTA REFA V+ REFB VOUTB Shutdown B
Supply Voltage, V+ to V................................................................... 7.5V Signal Input Terminals, Voltage(2).................. (V) 0.5V to (V+) Current(2).................................................... 10mA Output Short-Circuit(3).............................................................. Continuous Operating Temperature.................................................. to +150°C Storage Temperature..................................................... to +150°C Junction Temperature.................................................................... +150°C Lead Temperature (soldering, 10s)............................................... +300°C NOTE: (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied. (2) Input terminals are diode-clamped to the power-supply rails. Input signals that can swing more than 0.5V beyond the supply rails should be current limited 10mA or less. (3) Short-circuit to ground one amplifier per package.
This integrated circuit can be damaged by ESD. Burr-Brown recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
PACKAGE DRAWING NUMBER 337 SPECIFIED TEMPERATURE RANGE to +125°C PACKAGE MARKING C22 ORDERING INA2322EA/250 INA2322EA/2K5 TRANSPORT MEDIA Tape and Reel Tape and Reel Tape and Reel Tape and Reel
NOTES: (1) Models with a slash are available only in Tape and Reel in the quantities indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces of "INA322E/2K5" will get a single 2500-piece Tape and Reel.
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