济南誉光微电电子科技有限公司

供应高压放大器 OP400GPZ 低失调、低功耗四通道运算放大器 

替代器件AD8624 : Lower power and smaller package options

OP4177 : 精密、低噪声、低输入偏置电流、四通道运算放大器

GENERAL DESCRIPTION

The OP400 is the first monolithic quad operational amplifier

that features OP77-type performance. Precision performance is

not sacrificed with the OP400 to obtain the space and cost

savings offered by quad amplifiers.

The OP400 features an extremely low input offset voltage of less

than 150 μV with a drift of less than 1.2 μV/°C, guaranteed over

the full military temperature range. Open-loop gain of the

OP400 is more than 5 million into a 10 kΩ load, input bias

current is less than 3 nA, CMR is more than 120 dB, and PSRR

is less than 1.8 μV/V. On-chip Zener zap trimming is used to

achieve the low input offset voltage of the OP400 and eliminates

the need for offset nulling. The OP400 conforms to the industrystandard

quad pinout, which does not have null terminals.

The OP400 features low power consumption, drawing less than

725 μA per amplifier. The total current drawn by this quad

amplifier is less than that of a single OP07, yet the OP400 offers

significant improvements over this industry-standard op amp.

Voltage noise density of the OP400 is a low 11 nV/√Hz at

10 Hz, half that of most competitive devices.

The OP400 is an ideal choice for applications requiring multiple

precision operational amplifiers and where low power

consumption is critical.

SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

@ VS = ±15 V, TA = +25°C, unless otherwise noted.

Table 1.

OP400A/E OP400F OP400G/H

Parameter Symbol Conditions Min Typ Max Min Typ Max Min Typ Max Unit

INPUT CHARACTERISTICS

Input Offset Voltage VOS0 μV

Long-Term Input

Voltage Stability

0.1 0.1 0.1 μV/mo

Input Offset Current IOS VCM = 0 V 0.1 1.0 0.1 2.0 0.1 3.5 nA

Input Bias Current IB VCM = 0 V 0.75 3.0 0.75 6.0 0.75 7.0 nA

Input Noise Voltage en p-p 0.1 Hz to 10 Hz 0.5 0.5 0.5 μV p-p

Input Resistance

Differential Mode

RIN MΩ

Input Resistance

Common Mode

RINCM00 GΩ

Large Signal Voltage

Gain

AVO VO = ±10 V

RL = 10 kΩ 5000 12, V/mV

RL = 2 kΩ V/mV

Input Voltage Range 1 IVR ±12 ±13 ±12 ±13 ±12 ±13 V

Common-Mode

Rejection

CMR VCM = 12 V35 dB

Input Capacitance CIN 3.2 3.2 3.2 pF

OUTPUT

CHARACTERISTICS

Output Voltage Swing VO RL = 10 kΩ ±12 ±12.6 ±12 ±12.6 ±12 ±12.6 V

POWER SUPPLY

Power Supply Rejection

Ratio

PSRR VS = 3V to 18V 0.1 1.8 0.1 3.2 0.2 5.6 μV/V

Supply Current per

Amplifier

ISY No load25 μA

DYNAMIC PERFORMANCE

Slew Rate SR 0.1 0.15 0.1 0.15 0.1 0.15 V/μs

Gain Bandwidth

Product

GBWP AV = 500 kHz

Channel Separation CS VO = 20 V p-p,35 dB

fO = 10 Hz 2

Capacitive Load

Stability

AV = 1,

no oscillations

nF

NOISE PERFORMANCE

Input Noise Voltage en fO = 10 Hz 36 22 nV/√Hz

Density 3 fO = 1000 Hz 18 11 nV/√Hz

Input Noise Current in p-p 0.1 Hz to 10Hz pA p-p

Input Noise Current

Density

in fO = 10 Hz 0.6 0.6 0.6 pA/√Hz

1 Guaranteed by CMR test. 2 Guaranteed but not 100% tested.

3 Sample tested.