INA2321

現行

雙微功率 (40-µA) 加關機、500-µV 偏移、10-pA 偏壓、RRO 儀器放大器

立即訂購

產品規格表

document-pdfAcrobat microPower Single-Supply CMOS Instrumentation Amplifier datasheet (Rev. D) (英文)

INA2321

現行

產品規格表

立即訂購

產品詳細資料

Number of channels

2

Vs (max) (V)

5.5

Vs (min) (V)

2.5

Input offset (±) (max) (µV)

1000

Voltage gain (min) (V/V)

5

Voltage gain (max) (V/V)

1000

Noise at 1 kHz (typ) (nV√Hz)

100

Features

Cost Optimized

CMRR (min) (dB)

80

Input bias current (±) (max) (nA)

0.01

Iq (typ) (mA)

0.04

Bandwidth at min gain (typ) (MHz)

0.5

Gain error (±) (max) (%)

0.1

Operating temperature range (°C)

-55 to 125

Rating

Catalog

Type

Resistor

Gain nonlinearity (±) (max) (%)

0.01

Output swing headroom (to negative supply) (typ) (V)

0.025

Output swing headroom (to positive supply) (typ) (V)

-0.025

Input common mode headroom (to negative supply) (typ) (V)

0.55

Input common mode headroom (to positive supply) (typ) (V)

-1.7

Noise at 0.1 Hz to 10 Hz (typ) (µVPP)

20

Number of channels

2

Vs (max) (V)

5.5

Vs (min) (V)

2.5

Input offset (±) (max) (µV)

1000

Voltage gain (min) (V/V)

5

Voltage gain (max) (V/V)

1000

Noise at 1 kHz (typ) (nV√Hz)

100

Features

Cost Optimized

CMRR (min) (dB)

80

Input bias current (±) (max) (nA)

0.01

Iq (typ) (mA)

0.04

Bandwidth at min gain (typ) (MHz)

0.5

Gain error (±) (max) (%)

0.1

Operating temperature range (°C)

-55 to 125

Rating

Catalog

Type

Resistor

Gain nonlinearity (±) (max) (%)

0.01

Output swing headroom (to negative supply) (typ) (V)

0.025

Output swing headroom (to positive supply) (typ) (V)

-0.025

Input common mode headroom (to negative supply) (typ) (V)

0.55

Input common mode headroom (to positive supply) (typ) (V)

-1.7

Noise at 0.1 Hz to 10 Hz (typ) (µVPP)

20

TSSOP (PW)

14

32 mm² (5 mm × 6.4 mm)

LOW QUIESCENT CURRENT: 40µA/channel Shut Down: < 1µA
HIGH GAIN ACCURACY: G = 5, 0.02%, 2ppm/°C
GAIN SET WITH EXTERNAL RESISTORS
LOW OFFSET VOLTAGE: ±200µV
HIGH CMRR: 94dB
LOW BIAS CURRENT: 10pA
BANDWIDTH: 500kHz, G = 5V/V
RAIL-TO-RAIL OUTPUT SWING: (V+) - 0.02V
WIDE TEMPERATURE RANGE: -55°C to +125°C
SINGLE VERSION IN MSOP-8 PACKAGE AND DUAL VERSION IN TSSOP-14 PACKAGE
APPLICATIONS
- INDUSTRIAL SENSOR AMPLIFIERS: Bridge, RTD, Thermistor, Position
- PHYSIOLOGICAL AMPLIFIERS: ECG, EEG, EMG
- A/D CONVERTER SIGNAL CONDITIONING
- DIFFERENTIAL LINE RECEIVERS WITH GAIN
- FIELD UTILITY METERS
- PCMCIA CARDS
- COMMUNICATION SYSTEMS
- TEST EQUIPMENT
- AUTOMOTIVE INSTRUMENTATION

All trademarks are the property of their respective owners.

LOW QUIESCENT CURRENT: 40µA/channel Shut Down: < 1µA
HIGH GAIN ACCURACY: G = 5, 0.02%, 2ppm/°C
GAIN SET WITH EXTERNAL RESISTORS
LOW OFFSET VOLTAGE: ±200µV
HIGH CMRR: 94dB
LOW BIAS CURRENT: 10pA
BANDWIDTH: 500kHz, G = 5V/V
RAIL-TO-RAIL OUTPUT SWING: (V+) - 0.02V
WIDE TEMPERATURE RANGE: -55°C to +125°C
SINGLE VERSION IN MSOP-8 PACKAGE AND DUAL VERSION IN TSSOP-14 PACKAGE
APPLICATIONS
- INDUSTRIAL SENSOR AMPLIFIERS: Bridge, RTD, Thermistor, Position
- PHYSIOLOGICAL AMPLIFIERS: ECG, EEG, EMG
- A/D CONVERTER SIGNAL CONDITIONING
- DIFFERENTIAL LINE RECEIVERS WITH GAIN
- FIELD UTILITY METERS
- PCMCIA CARDS
- COMMUNICATION SYSTEMS
- TEST EQUIPMENT
- AUTOMOTIVE INSTRUMENTATION

All trademarks are the property of their respective owners.

The INA321 family is a series of rail-to-rail output, micropower CMOS instrumentation amplifiers that offer wide-range, single-supply, as well as bipolar-supply operation. The INA321 family provides low-cost, low-noise amplification of differential signals with micropower current consumption of 40µA. When shutdown, the INA321 has a quiescent current of less than 1µA. Returning to normal operations within nanoseconds, the shutdown feature makes the INA321 optimal for low-power battery or multiplexing applications.

Configured internally for 5V/V gain, the INA321 offers exceptional flexibility with user-programmable external gain resistors. The INA321 reduces common-mode error over frequency and with CMRR remaining high up to 3kHz, line noise and line harmonics are rejected.

The low-power design does not compromise on bandwidth or slew rate, making the INA321 ideal for driving sample Analog-to-Digital (A/D) converters as well as general-purpose applications. With high precision, low cost, and small packaging, the INA321 outperforms discrete designs, while offering reliability and performance.

The INA321 family is a series of rail-to-rail output, micropower CMOS instrumentation amplifiers that offer wide-range, single-supply, as well as bipolar-supply operation. The INA321 family provides low-cost, low-noise amplification of differential signals with micropower current consumption of 40µA. When shutdown, the INA321 has a quiescent current of less than 1µA. Returning to normal operations within nanoseconds, the shutdown feature makes the INA321 optimal for low-power battery or multiplexing applications.

Configured internally for 5V/V gain, the INA321 offers exceptional flexibility with user-programmable external gain resistors. The INA321 reduces common-mode error over frequency and with CMRR remaining high up to 3kHz, line noise and line harmonics are rejected.

The low-power design does not compromise on bandwidth or slew rate, making the INA321 ideal for driving sample Analog-to-Digital (A/D) converters as well as general-purpose applications. With high precision, low cost, and small packaging, the INA321 outperforms discrete designs, while offering reliability and performance.

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*	資料表	microPower Single-Supply CMOS Instrumentation Amplifier datasheet (Rev. D)		2006/1/31
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