LT1793AIS8 datasheet, PDF - EEWORLD Datasheet

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LT1793AIS8: DescriptionLow Noise, Picoampere Bias Current, JFET Input Op Amp; CategoryAnalog mixed-signal IC Amplifier circuit; File Size167KB，12 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html

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LT1793AIS8 Overview

Low Noise, Picoampere Bias Current, JFET Input Op Amp

LT1793AIS8 Parametric

Parameter Name	Attribute value
Brand Name	Linear Technology
Is it Rohs certified?	incompatible
Maker	Linear ( ADI )
Parts packaging code	SOIC
package instruction	0.150 INCH, PLASTIC, SOP-8
Contacts	8
Manufacturer packaging code	S8
Reach Compliance Code	not_compliant
ECCN code	EAR99
Is Samacsys	N
Amplifier type	OPERATIONAL AMPLIFIER
Architecture	VOLTAGE-FEEDBACK
Maximum average bias current (IIB)	0.0024 µA
Maximum bias current (IIB) at 25C	0.00001 µA
Nominal Common Mode Rejection Ratio	99 dB
frequency compensation	YES
Maximum input offset current (IIO)	0.003 µA
Maximum input offset voltage	1300 µV
JESD-30 code	R-PDSO-G8
JESD-609 code	e0
length	4.9025 mm
low-bias	YES
low-dissonance	NO
Humidity sensitivity level	1
Negative supply voltage upper limit	-20 V
Nominal Negative Supply Voltage (Vsup)	-15 V
Number of functions	1
Number of terminals	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Encapsulate equivalent code	SOP8,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	235
power supply	+-15 V
Certification status	Not Qualified
Maximum seat height	1.752 mm
minimum slew rate	2.1 V/us
Nominal slew rate	3.2 V/us
Maximum slew rate	5.4 mA
Supply voltage upper limit	20 V
Nominal supply voltage (Vsup)	15 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	20
Nominal Uniform Gain Bandwidth	3100 kHz
Minimum voltage gain	400000
width	3.899 mm
Base Number Matches	1

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LT1793

Low Noise,

Picoampere Bias Current,

JFET Input Op Amp

FEATURES

DESCRIPTIO

Input Bias Current, Warmed Up: 10pA Max

100% Tested Low Voltage Noise: 8nV/√Hz Max

A Grade 100% Temperature Tested

Offset Voltage Over Temp: 1mV Max

Input Resistance: 10

Ω

Very Low Input Capacitance: 1.5pF

Voltage Gain: 1 Million Min

Gain-Bandwidth Product: 4.2MHz Typ

Guaranteed Specifications with

±5V

Supplies

APPLICATIO S

Photocurrent Amplifiers

Hydrophone Amplifiers

High Sensitivity Piezoelectric Accelerometers

Low Voltage and Current Noise Instrumentation

Amplifier Front Ends

Two and Three Op Amp Instrumentation Amplifiers

Active Filters

, LTC and LT are registered trademarks of Linear Technology Corporation.

The LT

1793 achieves a new standard of excellence in

noise performance for a JFET op amp. For the first time low

voltage noise (6nV/√Hz) is simultaneously offered with

extremely low current noise (0.8fA/√Hz), providing the

lowest total noise for high impedance transducer applica-

tions. Unlike most JFET op amps, the very low input bias

current (3pA typ) is maintained over the entire common

mode range which results in an extremely high input resis-

tance (10

Ω).

When combined with a very low input ca-

pacitance (1.5pF) an extremely high input impedance

results, making the LT1793 the first choice for amplifying

low level signals from high impedance transducers. The

low input capacitance also assures high gain linearity when

buffering AC signals from high impedance transducers.

The LT1793 is unconditionally stable for gains of 1 or more,

even with 1000pF capacitive loads. Other key features are

250µV V

and a voltage gain over 4 million. Each indi-

vidual amplifier is 100% tested for voltage noise, slew rate

(3.4V/µs) and gain-bandwidth product (4.2MHz).

Specifications at

±5V

supply operation are also provided.

For an even lower voltage noise please see the LT1792 data

sheet.

TYPICAL APPLICATIO

Low Noise Light Sensor with DC Servo

2pF

TOTAL 1kHz VOLTAGE NOISE DENSITY (nV/√Hz)

10k

LT1097

2N3904

HAMAMATSU

S1336-5BK

(908) 231-0960

–

10k

1793 TA01

–

R2C2 > C1R1

= PARASITIC PHOTODIODE CAPACITANCE

OUT

= 100mV/µWATT FOR 200nm WAVE LENGTH

330mV/µWATT FOR 633nm WAVE LENGTH

–

1N914

–

LT1793

–

C2 0.022µF

OUT

100

100k

100

1kHz Output Voltage Noise

Density vs Source Resistance

–

SOURCE

RESISTANCE

ONLY

= 25°C

±15V

10k 100k 1M 10M 100M 1G

SOURCE RESISTANCE (Ω)

√

OP AMP

)

+ 4kTR

+ 2qI

1793 TA02

LT1793AIS8 Related Products

	LT1793AIS8	LT1793IS8	LT1793IN8	LT1793CS8	LT1793CN8	LT1793ACS8	LT1793AIN8	LT1793ACN8	LT1793
Description	Low Noise, Picoampere Bias Current, JFET Input Op Amp	Low Noise, Picoampere Bias Current, JFET Input Op Amp	Low Noise, Picoampere Bias Current, JFET Input Op Amp	Low Noise, Picoampere Bias Current, JFET Input Op Amp	Low Noise, Picoampere Bias Current, JFET Input Op Amp	Low Noise, Picoampere Bias Current, JFET Input Op Amp	Low Noise, Picoampere Bias Current, JFET Input Op Amp	Low Noise, Picoampere Bias Current, JFET Input Op Amp	Low Noise, Picoampere Bias Current, JFET Input Op Amp
Brand Name	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology	-
Is it Rohs certified?	incompatible	incompatible	incompatible	incompatible	incompatible	incompatible	incompatible	incompatible	-
Maker	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	-	-	-	Linear ( ADI )	Linear ( ADI )	-
Parts packaging code	SOIC	SOIC	DIP	SOIC	DIP	SOIC	DIP	DIP	-
package instruction	0.150 INCH, PLASTIC, SOP-8	SOP, SOP8,.25	DIP, DIP8,.3	SOP, SOP8,.25	DIP, DIP8,.3	SOP, SOP8,.25	DIP, DIP8,.3	DIP, DIP8,.3	-
Contacts	8	8	8	8	8	8	8	8	-
Manufacturer packaging code	S8	S8	N	S8	N	S8	N	N	-
Reach Compliance Code	not_compliant	_compli	_compli	_compli	_compli	_compli	not_compliant	not_compliant	-
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	-
Amplifier type	OPERATIONAL AMPLIFIER	OPERATIONAL AMPLIFIER	OPERATIONAL AMPLIFIER	OPERATIONAL AMPLIFIER	OPERATIONAL AMPLIFIER	OPERATIONAL AMPLIFIER	OPERATIONAL AMPLIFIER	OPERATIONAL AMPLIFIER	-
Architecture	VOLTAGE-FEEDBACK	VOLTAGE-FEEDBACK	VOLTAGE-FEEDBACK	VOLTAGE-FEEDBACK	VOLTAGE-FEEDBACK	VOLTAGE-FEEDBACK	VOLTAGE-FEEDBACK	VOLTAGE-FEEDBACK	-
Maximum average bias current (IIB)	0.0024 µA	0.003 µA	0.003 µA	0.0005 µA	0.0005 µA	0.0004 µA	0.0024 µA	0.0004 µA	-
Maximum bias current (IIB) at 25C	0.00001 µA	0.00002 µA	0.00002 µA	0.00002 µA	0.00002 µA	0.00001 µA	0.00001 µA	0.00001 µA	-
Nominal Common Mode Rejection Ratio	99 dB	94 dB	94 dB	95 dB	95 dB	100 dB	99 dB	100 dB	-
frequency compensation	YES	YES	YES	YES	YES	YES	YES	YES	-
Maximum input offset current (IIO)	0.003 µA	0.004 µA	0.004 µA	0.0013 µA	0.0013 µA	0.001 µA	0.003 µA	0.001 µA	-
Maximum input offset voltage	1300 µV	4800 µV	4800 µV	3500 µV	3500 µV	1000 µV	1300 µV	1000 µV	-
JESD-30 code	R-PDSO-G8	R-PDSO-G8	R-PDIP-T8	R-PDSO-G8	R-PDIP-T8	R-PDSO-G8	R-PDIP-T8	R-PDIP-T8	-
JESD-609 code	e0	e0	e0	e0	e0	e0	e0	e0	-
low-bias	YES	YES	YES	YES	YES	YES	YES	YES	-
low-dissonance	NO	NO	NO	NO	NO	NO	NO	NO	-
Humidity sensitivity level	1	1	1	1	1	1	1	1	-
Negative supply voltage upper limit	-20 V	-20 V	-20 V	-20 V	-20 V	-20 V	-20 V	-20 V	-
Nominal Negative Supply Voltage (Vsup)	-15 V	-15 V	-15 V	-15 V	-15 V	-15 V	-15 V	-15 V	-
Number of functions	1	1	1	1	1	1	1	1	-
Number of terminals	8	8	8	8	8	8	8	8	-
Maximum operating temperature	85 °C	85 °C	85 °C	70 °C	70 °C	70 °C	85 °C	70 °C	-
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	-
encapsulated code	SOP	SOP	DIP	SOP	DIP	SOP	DIP	DIP	-
Encapsulate equivalent code	SOP8,.25	SOP8,.25	DIP8,.3	SOP8,.25	DIP8,.3	SOP8,.25	DIP8,.3	DIP8,.3	-
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	-
Package form	SMALL OUTLINE	SMALL OUTLINE	IN-LINE	SMALL OUTLINE	IN-LINE	SMALL OUTLINE	IN-LINE	IN-LINE	-
Peak Reflow Temperature (Celsius)	235	235	NOT SPECIFIED	235	NOT SPECIFIED	235	NOT SPECIFIED	NOT SPECIFIED	-
power supply	+-15 V	+-15 V	+-15 V	+-15 V	+-15 V	+-15 V	+-15 V	+-15 V	-
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	-
Maximum seat height	1.752 mm	1.752 mm	3.937 mm	1.752 mm	3.937 mm	1.752 mm	3.937 mm	3.937 mm	-
minimum slew rate	2.1 V/us	2.1 V/us	2.1 V/us	2.2 V/us	2.2 V/us	2.2 V/us	2.1 V/us	2.2 V/us	-
Nominal slew rate	3.2 V/us	3.2 V/us	3.2 V/us	3.3 V/us	3.3 V/us	3.3 V/us	3.2 V/us	3.3 V/us	-
Maximum slew rate	5.4 mA	5.4 mA	5.4 mA	5.3 mA	5.3 mA	5.3 mA	5.4 mA	5.3 mA	-
Supply voltage upper limit	20 V	20 V	20 V	20 V	20 V	20 V	20 V	20 V	-
Nominal supply voltage (Vsup)	15 V	15 V	15 V	15 V	15 V	15 V	15 V	15 V	-
surface mount	YES	YES	NO	YES	NO	YES	NO	NO	-
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	INDUSTRIAL	COMMERCIAL	-
Terminal surface	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	-
Terminal form	GULL WING	GULL WING	THROUGH-HOLE	GULL WING	THROUGH-HOLE	GULL WING	THROUGH-HOLE	THROUGH-HOLE	-
Terminal pitch	1.27 mm	1.27 mm	2.54 mm	1.27 mm	2.54 mm	1.27 mm	2.54 mm	2.54 mm	-
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	-
Maximum time at peak reflow temperature	20	20	NOT SPECIFIED	20	NOT SPECIFIED	20	NOT SPECIFIED	NOT SPECIFIED	-
Nominal Uniform Gain Bandwidth	3100 kHz	3100 kHz	3100 kHz	3300 kHz	3300 kHz	3300 kHz	3100 kHz	3300 kHz	-
Minimum voltage gain	400000	400000	400000	400000	400000	500000	400000	500000	-
width	3.899 mm	3.899 mm	7.62 mm	3.899 mm	7.62 mm	3.899 mm	7.62 mm	7.62 mm	-
Base Number Matches	1	-	-	1	1	1	1	1	-

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