Datasheet Linear Technology LT1806

Manufacturer	Linear Technology
Series	LT1806

325MHz, Single, Rail-to-Rail Input and Output, Low Distortion, Low Noise Precision Op Amps

Datasheets

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PDF, 346 Kb, Language: en, File uploaded: Aug 6, 2017, Pages: 28
325MHz, Single, Rail-to-Rail Input and Output, Low Distortion, Low Noise Precision Op Amps

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Packaging

	LT1806CS6#PBF	LT1806CS6#TRMPBF	LT1806CS6#TRPBF	LT1806CS8#PBF	LT1806CS8#TRPBF	LT1806IS6#PBF	LT1806IS6#TRMPBF	LT1806IS6#TRPBF	LT1806IS8#PBF	LT1806IS8#TRPBF
N	1	2	3	4	5	6	7	8	9	10
Package	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SO-8 Package Outline Drawing	SO-8 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SO-8 Package Outline Drawing	SO-8 Package Outline Drawing
Package Code	S6	S6	S6	S8	S8	S6	S6	S6	S8	S8
Package Index	05-08-1636	05-08-1636	05-08-1636	05-08-1610 (S8)	05-08-1610 (S8)	05-08-1636	05-08-1636	05-08-1636	05-08-1610 (S8)	05-08-1610 (S8)
Pin Count	6	6	6	8	8	6	6	6	8	8

Parametrics

Parameters / Models	LT1806CS6#PBF	LT1806CS6#TRMPBF	LT1806CS6#TRPBF	LT1806CS8#PBF	LT1806CS8#TRPBF	LT1806IS6#PBF	LT1806IS6#TRMPBF	LT1806IS6#TRPBF	LT1806IS8#PBF	LT1806IS8#TRPBF
Av Min Stable, V/V	1	1	1	1	1	1	1	1	1	1
Avol, dB	47	47	47	47	47	47	47	47	47	47
Common Mode Rejection Ratio, dB	100	100	100	100	100	100	100	100	100	100
Number of Channels	1	1	1	1	1	1	1	1	1	1
Cload, pF	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000
Demo Boards	DC417B	DC417B	DC417B	DC417B	DC417B	DC417B	DC417B	DC417B	DC417B	DC417B
Design Tools	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model
Enoise 1/f Corner, Hz	400	400	400	400	400	400	400	400	400	400
Enoise Density, nV/rtHz	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5
Export Control	no	no	no	no	no	no	no	no	no	no
GBW, MHz	325	325	325	325	325	325	325	325	325	325
Ibias, nA	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000
Inoise, pA/rtHz	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5
Inoise 1/f Corner, Hz	650	650	650	650	650	650	650	650	650	650
Ios, µA	0.00003	0.00003	0.00003	0.00003	0.00003	0.00003	0.00003	0.00003	0.00003	0.00003
Iout, mA	85	85	85	85	85	85	85	85	85	85
Isupply, mA	9	9	9	9	9	9	9	9	9	9
LF Enoise, µVPP	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8
Operating Temperature Range, °C	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Over-the-Top	no	no	no	no	no	no	no	no	no	no
PSRR, dB	105	105	105	105	105	105	105	105	105	105
Rail-to-Rail	Both	Both	Both	Both	Both	Both	Both	Both	Both	Both
Rail-to-Rail In	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Rail-to-Rail Out	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
SR, V/µs	125	125	125	125	125	125	125	125	125	125
Shutdown	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Single Supply	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Ts (0.1%), ns	60	60	60	60	60	60	60	60	60	60
Type	VFB	VFB	VFB	VFB	VFB	VFB	VFB	VFB	VFB	VFB
Voh (from V+), V	0.015	0.015	0.015	0.015	0.015	0.015	0.015	0.015	0.015	0.015
Vol (from V-), V	0.008	0.008	0.008	0.008	0.008	0.008	0.008	0.008	0.008	0.008
Vos, mV	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1
Vos TC, µV/C	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5
Vs Max, V	12.6	12.6	12.6	12.6	12.6	12.6	12.6	12.6	12.6	12.6
Vs Min, V	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5

Eco Plan

	LT1806CS6#PBF	LT1806CS6#TRMPBF	LT1806CS6#TRPBF	LT1806CS8#PBF	LT1806CS8#TRPBF	LT1806IS6#PBF	LT1806IS6#TRMPBF	LT1806IS6#TRPBF	LT1806IS8#PBF	LT1806IS8#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Other Options

LT1807 LT1807

Design Notes

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Fast Op Amps Operate Rail-to-Rail on 2.7V &mdash DN241
PDF, 77 Kb, File published: Oct 1, 2001
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Fast Op Amps Operate Rail-to-Rail on 2.7V
Design Note 241
Glen Brisebois
The new LTВ®1806 and LT1809 are fast operational
ampliп¬Ѓers with rail-to-rail inputs and outputs. The
LT1806 is optimized for low noise (3.5nV/в€љHz) and
offset (100ОјV typical, 550ОјV max) and has a 325MHz
gain bandwidth product. The LT1809 is optimized for
low distortion (вЂ“90dBc to 5MHz) and has a 180MHz
gain bandwidth product. Both ampliп¬Ѓers have 85mA
output drive capability and are fully speciп¬Ѓed over
commercial and industrial temperature ranges on 3V,
5V and В±5V supplies.
Parallel Composite Ampliп¬Ѓer Achieves
Low Distortion into Heavy Loads
Achieving low distortion is difп¬Ѓcult enough and driving
heavy loads only makes the undertaking more difп¬Ѓcult.
Figure 1 shows a parallel composite topology where
each ampliп¬Ѓer is given a different responsibility. Ampliп¬Ѓer U1 is conп¬Ѓgured in a standard gain of 2 to account
for the eventual attenuation caused by the 50О© output
divider. Ampliп¬Ѓer U1 alone can drive the load, but its
distortion п¬Ѓgures would suffer. Therefore, ampliп¬Ѓer
U2 is added in a slightly higher gain and its output is …
Download
LT1806: 325MHz Low Noise Rail-to-Rail SOT-23 Op Amp Saves Board Space &mdash DN254
PDF, 76 Kb, File published: Apr 1, 2001
Extract from the document
325MHz Low Noise Rail-to-Rail SOT-23 Op Amp
Saves Board Space вЂ“ Design Note 254
Glen Brisebois
The new tiny LTВ®1806 combines 325MHz gain bandwidth, 3.5nV/в€љHz voltage noise, 100ОјV input offset
voltage and rail-to-rail inputs and outputs in a SOT-23
package. The device is fully speciп¬Ѓed on 3V, 5V and
В±5V supplies with a guaranteed maximum input offset
voltage of 850ОјV at either rail over temperature. It is
available in commercial and industrial temperature
grades.
1MО© Transimpedance Ampliп¬Ѓer Achieves Near
Theoretical Noise Performance with Large-Area
Photodiodes
The circuit of Figure 1 shows the LT1806 in an ultralow
noise transimpedance ampliп¬Ѓer applied to a large-area
high capacitance photodiode. The LT1806 is used for its
high gain bandwidth and low noise. The IFN147 ultralow
noise JFET1 operates at its IDSS (VGS = 0V) with a typical
transconductance of 40mS. With its source grounded,
the JFET and its drain resistor, R52, set a voltage gain
of about 8. The combination of the ultralow noise JFET
gain stage and the LT1806 low noise ampliп¬Ѓer achieves
the ultralow input noise performance. The circuitвЂ™s input …

Articles

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1MW Transimpedance Amplifier Achieves Near-Theoretical Noise Performance, 2.4GHz Gain Bandwidth, with Large-Area Photodiodes &mdash LT Journal
PDF, 153 Kb, File published: May 1, 2001
Extract from the document
DESIGN IDEAS 1Mв„¦ Transimpedance Amplifier
Achieves Near-Theoretical Noise
Performance, 2.4GHz Gain Bandwidth,
with Large-Area Photodiodes by Glen Brisebois
transimpedance circuitвЂ™s noise gain,
which applies to voltage noise but not
to current noise or resistor noise,
rises drastically with frequency (noise
gain = 1+ ZF/XC). As a sample calculation, a 500pF photodiode has an
impedance of 3.2k at 100kHz, giving
a 1Mв„¦ transimpedance circuit a noise
gain of 314 at that frequency. The
theoretical noise floor of the 1M
resistor is 130nV/в€љHz (at room temperature), so any input voltage noise
above 0.41nV/в€љHz (130nV/в€љHz/314)
will overtake the resistor noise at
100kHz. Discrete JFETs are available
with ultralow voltage noise but they
have high input capacitance (75pF
max for the IFN147). Serendipitously,
the input capacitance of the JFET is
relatively insignificant compared to
the 500pF of the example large-area …
Download
Low Distortion Rail-to-Rail Amplifiers Drive ADCs and Cables &mdash LT Journal
PDF, 174 Kb, File published: Nov 1, 2000
Extract from the document
DESIGN FEATURES Low Distortion Rail-to-Rail Amplifiers
Drive ADCs and Cables
by William Jett, Danh Tran and Glen Brisebois
tion вЂ“90dBc at fC = 5MHz (VS = 5V, VO
= 2VP-P). Both parts are fully specified
for 3V, 5V and В±5V operation and are
available in 8-lead SO and 6-lead
SOT-23 packages. A shutdown function is included that disables the
amplifier and reduces the supply current to less than 1mA. Performance
Table 1 summarizes the performance
of the LT1806 and LT1809. Note that
input offset voltage is specified at
both the positive and negative supply
rails, in contrast to most competitive
parts, which are only specified at midsupply. Table 1. LT1806/LT1809 key performance specifications LT1806 LT1809 Gain-Bandwidth Product 325MHz 180MHz Slew Rate 140V/Вµs 350V/Вµs Input Voltage Noise 3.5nV/в€љHz 16nV/в€љHz Harmonic Distortion, RL = 1k
fC = 5MHz, VS = 5V, AV = 1, VO = 2VP-P вЂ“80dBc вЂ“90dBc Settling Time 0.01%
VSTEP = 2V, VS = 5V, AV = 1 60ns LT1809
AV = 1
VIN = 2VP-P
VS = В±5V вЂ“50
вЂ“60
вЂ“70 RL = 100в„¦, 2ND вЂ“80 RL = 100в„¦, 3RD
вЂ“90 …

Model Line

Series: LT1806 (10)

LT1806CS6#PBF LT1806CS6#TRMPBF LT1806CS6#TRPBF LT1806CS8#PBF LT1806CS8#TRPBF LT1806IS6#PBF LT1806IS6#TRMPBF LT1806IS6#TRPBF LT1806IS8#PBF LT1806IS8#TRPBF

Manufacturer's Classification

Signal Conditioning > Amplifiers > Operational Amplifiers (Op Amps) > Precision Amplifiers (Vos | High Speed Amplifiers (GBW > 50MHz) | Low Noise Amplifiers ( | High Voltage Amplifiers (>12V) | Rail-to-Rail Amplifiers