Datasheet Linear Technology LTC6261

Manufacturer	Linear Technology
Series	LTC6261

30MHz, 240µA Power Efficient Rail-to-Rail I/O Op Amps

Datasheets

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PDF, 1.8 Mb, Language: en, File uploaded: Aug 6, 2017, Pages: 26
30MHz, 240µA Power Efficient Rail-to-Rail I/O Op Amps

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Prices

Packaging

	LTC6261HDC#PBF	LTC6261HDC#TRMPBF	LTC6261HDC#TRPBF	LTC6261HS6#PBF	LTC6261HS6#TRMPBF	LTC6261HS6#TRPBF	LTC6261IDC#PBF	LTC6261IDC#TRMPBF	LTC6261IDC#TRPBF	LTC6261IS6#PBF	LTC6261IS6#TRMPBF	LTC6261IS6#TRPBF
N	1	2	3	4	5	6	7	8	9	10	11	12
Package	2x2 DFN-6 Package Outline Drawing	2x2 DFN-6 Package Outline Drawing	2x2 DFN-6 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	2x2 DFN-6 Package Outline Drawing	2x2 DFN-6 Package Outline Drawing	2x2 DFN-6 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing
Package Code	DC6	DC6	DC6	S6	S6	S6	DC6	DC6	DC6	S6	S6	S6
Package Index	05-08-1703	05-08-1703	05-08-1703	05-08-1636	05-08-1636	05-08-1636	05-08-1703	05-08-1703	05-08-1703	05-08-1636	05-08-1636	05-08-1636
Pin Count	6	6	6	6	6	6	6	6	6	6	6	6

Parametrics

Parameters / Models	LTC6261HDC#PBF	LTC6261HDC#TRMPBF	LTC6261HDC#TRPBF	LTC6261HS6#PBF	LTC6261HS6#TRMPBF	LTC6261HS6#TRPBF	LTC6261IDC#PBF	LTC6261IDC#TRMPBF	LTC6261IDC#TRPBF	LTC6261IS6#PBF	LTC6261IS6#TRMPBF	LTC6261IS6#TRPBF
Av Min Stable, V/V	1	1	1	1	1	1	1	1	1	1	1	1
Avol, dB	46	46	46	46	46	46	46	46	46	46	46	46
Common Mode Rejection Ratio, dB	100	100	100	100	100	100	100	100	100	100	100	100
Cdiff, pF	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4
Number of Channels	1	1	1	1	1	1	1	1	1	1	1	1
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File
Enoise Density, nV/rtHz	13	13	13	13	13	13	13	13	13	13	13	13
Export Control	no	no	no	no	no	no	no	no	no	no	no	no
GBW, MHz	30	30	30	30	30	30	30	30	30	30	30	30
Ibias, nA	60	60	60	60	60	60	60	60	60	60	60	60
Inoise, pA/rtHz	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6
Ios, µA	0.002	0.002	0.002	0.002	0.002	0.002	0.002	0.002	0.002	0.002	0.002	0.002
Iout, mA	40	40	40	40	40	40	40	40	40	40	40	40
Isupply, mA	0.245	0.245	0.245	0.245	0.245	0.245	0.245	0.245	0.245	0.245	0.245	0.245
LF Enoise, µVPP	1.25	1.25	1.25	1.25	1.25	1.25	1.25	1.25	1.25	1.25	1.25	1.25
Operating Temperature Range, °C	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 85	-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	no	no
PSRR, dB	95	95	95	95	95	95	95	95	95	95	95	95
Rail-to-Rail	Both	Both	Both	Both	Both	Both	Both	Both	Both	Both	Both	Both
Rail-to-Rail In	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Rail-to-Rail Out	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
SR, V/µs	7	7	7	7	7	7	7	7	7	7	7	7
Shutdown	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Single Supply	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Ts (0.1%), ns	400	400	400	400	400	400	400	400	400	400	400	400
Type	VFB	VFB	VFB	VFB	VFB	VFB	VFB	VFB	VFB	VFB	VFB	VFB
VinCM High (from V+), V	-0.1	-0.1	-0.1	-0.1	-0.1	-0.1	-0.1	-0.1	-0.1	-0.1	-0.1	-0.1
VinCM Low (from V-), V	-0.1	-0.1	-0.1	-0.1	-0.1	-0.1	-0.1	-0.1	-0.1	-0.1	-0.1	-0.1
Voh (from V+), V	0.06	0.06	0.06	0.06	0.06	0.06	0.06	0.06	0.06	0.06	0.06	0.06
Vol (from V-), V	0.035	0.035	0.035	0.035	0.035	0.035	0.035	0.035	0.035	0.035	0.035	0.035
Vos, mV	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05
Vos TC, µV/C	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4
Vs Max, V	5.25	5.25	5.25	5.25	5.25	5.25	5.25	5.25	5.25	5.25	5.25	5.25
Vs Min, V	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8

Eco Plan

	LTC6261HDC#PBF	LTC6261HDC#TRMPBF	LTC6261HDC#TRPBF	LTC6261HS6#PBF	LTC6261HS6#TRMPBF	LTC6261HS6#TRPBF	LTC6261IDC#PBF	LTC6261IDC#TRMPBF	LTC6261IDC#TRPBF	LTC6261IS6#PBF	LTC6261IS6#TRMPBF	LTC6261IS6#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Other Options

LTC6262 LTC6262 LTC6263 LTC6263

Design Notes

Download
Low Power Op Amp: Low Power Filter, Headphone Driver Revisited &mdash DN1041
PDF, 393 Kb, File published: Apr 25, 2017
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Low Power Op Amp: Low Power Filter, Headphone
DriverВ Revisited
Design Note 1041
by Aaron Schultz
Introduction
A new family of op amps features industry leading
speed versus supply current. The LTC6261/LTC6262/
LTC6263 family (single, dual, quad) provides 30MHz
at a low 240ВµA supply current, with 400ВµV maximum
offset voltage and rail-to-rail input and output. In
combination with 1.8V to 5.25V supply, these op
amps enable applications requiring uncompromised
performance with low power and low voltage.
Active Filters
This new set of op amps with high MHz-to-mA ratios
provides an opportunity to look at filter circuits in a
new light. The two filter examples discussed here
display performance previously unachievable with
such low power.
Second Order Bessel Filter
Ample bandwidth and low supply current enable
deployment of active filters in portable and other low
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered …
Download
Low Power Op Amp: Low Power Filter, Headphone Driver Revisited &mdash DN563
PDF, 240 Kb, File published: Apr 25, 2017
Extract from the document
Low Power Op Amp: Low Power Filter, Headphone
DriverВ Revisited
Design Note 563
by Aaron Schultz
100mW delivered to reach 110dBSPL. With 32О©, the
RMS current is 56mA and voltage 1.8V; with 120О©,
29mA and 3.5V. Introduction
A new family of op amps features industry leading
speed versus supply current. The LTC6261/LTC6262/
LTC6263 family (single, dual, quad) provides 30MHz
at a low 240ВµA supply current, with 400ВµV maximum
offset voltage and rail-to-rail input and output. In
combination with 1.8V to 5.25V supply, these op
amps enable applications requiring uncompromised
performance with low power and low voltage. Given a 3.3V supply and the output of one LTC6261
amplifier, there may not be sufficient drive capability to yield 100mW. However, the combination of
two 180В° phased amplifiers is enough to provide
the necessary drive to reach upwards of 100mW
delivered power. Duplication of this bridge drive
circuit enables power to both left and right sides. Bridge-Tied Differential Output Amplifier
The low supply current at the bandwidth and noise
performance allows for excellent fidelity at a fraction
of the usual dissipation in portable audio equipment. …

Articles

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Low Power Op Amps: Only 20µA for 1.3MHz, 240µA for 30MHz &mdash LT Journal
PDF, 618 Kb, File published: Jul 7, 2017
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Low Power Op Amps: Only 20ВµA for 1.3MHz,
240ВµA for 30MHz
Aaron Schultz, Catherine Chang and Philip Karantzalis Our op amp family has expanded with industry-leading speed versus supply current.
For super low 20ВµA supply current, the LTC6258/LTC6259/LTC6260 (single, dual,
quad) provide 1.3MHz at a with 400ВµV maximum offset voltage and rail-to-rail
input and output. The still-low 240ВµA of the LTC6261/LTC6262/ LTC6263 (single,
dual, quad) provide 30MHz with 400ВµV maximum offset voltage and rail-to-rail
input and output. In combination with 1.8V to 5.25V supply, these op amps enable
applications requiring good performance with low power and low voltage.
LOW NOISE REFERENCE This circuit takes advantage of the ability
of the LTC6258 to drive large capacitive
loads. Use of a large output capacitor
bank attached to the LTC6258 enables
significant bypassing of follow-on circuits
that use the reference voltage. In total, 12 | July 2017 : LT Journal of Analog Innovation LT6656
IN OUT
GND OUT
LTC6258 CIN1
22ВµF 22ВµF 22ВµF FigureВ 1. Low noise reference the combination of LT6656 and LTC6258,
in this configuration, develops a reference
voltage with low noise, at low power, and
with appreciably large bypass capacitance.
Voltage spectral noise densities are shown …

Model Line

Series: LTC6261 (12)

LTC6261HDC#PBF LTC6261HDC#TRMPBF LTC6261HDC#TRPBF LTC6261HS6#PBF LTC6261HS6#TRMPBF LTC6261HS6#TRPBF LTC6261IDC#PBF LTC6261IDC#TRMPBF LTC6261IDC#TRPBF LTC6261IS6#PBF LTC6261IS6#TRMPBF LTC6261IS6#TRPBF

Manufacturer's Classification

Signal Conditioning > Amplifiers > Operational Amplifiers (Op Amps) > Precision Amplifiers (Vos | Low Power Amplifiers (Is < 1mA/amp) | Rail-to-Rail Amplifiers
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Amplifiers