LT1218CN8 Linear Technology Corporation, LT1218CN8 Datasheet

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LT1218CN8

Manufacturer Part Number
LT1218CN8
Description
Manufacturer
Linear Technology Corporation
Datasheet

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Part Number
Manufacturer
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Part Number:
LT1218CN8
Manufacturer:
NXP
Quantity:
10 000
Part Number:
LT1218CN8#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
FEATURES
APPLICATIONS
C-Load is a trademark of Linear Technology Corporation.
TYPICAL
, LTC and LT are registered trademarks of Linear Technology Corporation.
Rail-to-Rail Input and Output
90 V V
High Common Mode Rejection Ratio: 97dB Min
C-Load
High A
Wide Supply Range:
Shutdown Mode: I
Low Supply Current: 420 A Max
Low Input Bias Current: 18nA Typical
300kHz Gain-Bandwidth Product (LT1218)
Slew Rate: 0.10V/ s (LT1218)
Driving A/D Converters
Test Equipment Amplifiers
MUX Amplifiers
2V to 15V (LT1218/LT1219)
2V to 5V (LT1218L/LT1219L)
SELECT
INPUT
VOL
OS(MAX)
TM
V
V
IN1
IN2
Stable Version (LT1219)
: 500V/mV Minimum Driving 10k Load
APPLICATION
for V
74HCO4
U
S
< 30 A
CM
MUX Amplifier
= V
+
+
LT1218L
LT1218L
5V
5V
to V
U
SHDN
SHDN
+
1218/19 • TA01
MAXIMUM IN
TO OUT ERROR
= 110 V FOR
0.05V V
R
V
L
OUT
= 10k
IN
4.8V
The LT
rail-to-rail input and output operation with precision speci-
fications. Unlike other rail-to-rail amplifiers, the LT1218/
LT1219’s input offset voltage is a low 90 V across the
entire rail-to-rail input range, not just a portion of it. Using
a patented technique, both input stages of the LT1218/
LT1219 are trimmed: one at the negative supply and the
other at the positive supply. The resulting common mode
rejection of 97dB minimum is much better than other rail-
to-rail input op amps. A minimum open-loop gain of
500V/mV into a 10k load virtually eliminates all gain error.
The LT1218 has conventional compensation which
assures stability for capacitive loads of 1000pF or less.
The LT1219 has compensation that requires the use of a
0.1 F output capacitor, which improves the amplifier’s
supply rejection and reduces output impedance at high
frequencies. The output capacitor’s filtering action also
reduces high frequency noise, which is beneficial when
driving A/D converters.
High and low voltage versions of the devices are offered.
Operation is specified for 3V, 5V and 5V supplies for the
LT1218L/LT1219L and 3V, 5V and 15V for the LT1218/
LT1219.
DESCRIPTION
®
Precision Rail-to-Rail Input
1218/LT1219 are bipolar op amps which combine
0.01
1.0
0.1
and Output Op Amps
10
Voltage Follower Input to Output Error
0
V
A
NO LOAD
0.05
S
V
U
= 5V
= 1
1
MAX ERROR = 110 V
INPUT VOLTAGE (V)
0.05V V
2
LT1218/LT1219
IN
3
4.8V
4
LT1218/19 • TA02
4.95
5
1

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LT1218CN8 Summary of contents

Page 1

... Low Input Bias Current: 18nA Typical 300kHz Gain-Bandwidth Product (LT1218) Slew Rate: 0.10V/ s (LT1218) U APPLICATIONS Driving A/D Converters Test Equipment Amplifiers MUX Amplifiers , LTC and LT are registered trademarks of Linear Technology Corporation. C-Load is a trademark of Linear Technology Corporation. U TYPICAL APPLICATION MUX Amplifier 5V + ...

Page 2

... SOURCE I = 2.5mA SOURCE 5V SHDN SHDN U W INFORMATION ORDER PART NUMBER TOP VIEW LT1218CN8 V TRIM 8 LT1218CS8 LT1218LCN8 OUT LT1218LCS8 6 LT1219CN8 5 SHDN LT1219CS8 S8 PACKAGE LT1219LCN8 8-LEAD PLASTIC SO LT1219LCS8 = 130 C/ W (N8 190 C/ W (S8 PART MARKING 1218 1219 1218L 1219L MIN TYP MAX 25 ...

Page 3

ELECTRICAL CHARACTERISTICS 5V, 0V 3V, 0V SYMBOL PARAMETER SR Slew Rate (LT1218/LT1218L) (LT1219/LT1219L) GBW Gain Bandwidth Product (LT1218/LT1218L) (LT1219/LT1219L 5V, ...

Page 4

LT1218/LT1219 ELECTRICAL CHARACTERISTICS – 5V, 0V 3V, 0V SYMBOL PARAMETER A Large-Signal Voltage Gain VOL CMRR Common Mode Rejection Ratio PSRR Power Supply Rejection Ratio V Output ...

Page 5

ELECTRICAL CHARACTERISTICS LT1218L/LT1219L only SYMBOL PARAMETER V Input Offset Voltage OS V Input Offset Voltage Shift OS I Input Bias Current B I Input Bias Current B I Input Offset Current OS I ...

Page 6

LT1218/LT1219 ELECTRICAL CHARACTERISTICS LT1218/LT1219 only 15V SYMBOL PARAMETER V Input Offset Voltage OS V Input Offset Voltage Shift OS I Input Bias Current B I Input Bias Current B I Input ...

Page 7

ELECTRICAL CHARACTERISTICS LT1218/LT1219 only SYMBOL PARAMETER I Short-Circuit Current SC I Supply Current S Positive Supply Current, SHDN LT1218, LT1219 only; – SYMBOL PARAMETER V Input ...

Page 8

LT1218/LT1219 W U TYPICAL PERFORMANCE CHARACTERISTICS V Distribution 5V –100 –60 – 100 INPUT OFFSET VOLTAGE ( V) ...

Page 9

W U TYPICAL PERFORMANCE CHARACTERISTICS Noise Voltage Spectrum 100 100 FREQUENCY (Hz) LT1218 Gain and Phase Shift vs Frequency 2.5V ...

Page 10

LT1218/LT1219 W U TYPICAL PERFORMANCE CHARACTERISTICS LT1218 Power Supply Rejection Ratio vs Frequency 100 POSITIVE SUPPLY NEGATIVE SUPPLY 100 1000 FREQUENCY (kHz) LT1218/19 • ...

Page 11

W U TYPICAL PERFORMANCE CHARACTERISTICS THD + Noise vs Peak-to-Peak Voltage 1kHz R = 10k L (ALL CURVES – ...

Page 12

LT1218/LT1219 APPLICATIONS INFORMATION output stage with rail-to-rail swing. The amplifier is fabri- cated on Linear Technology’s proprietary complementary bipolar process, which ensures very similar DC and AC characteristics for the output devices Q24 and Q26. A simple ...

Page 13

U U APPLICATIONS INFORMATION Shutdown The biasing of the LT1218/LT1219 is controlled by the SHDN pin. When the SHDN pin is low, the part is shut down. In the shutdown mode, the output looks like a 40pF capacitor and the ...

Page 14

LT1218/LT1219 APPLICATIONS INFORMATION compensation. The output capacitance forms a filter, which reduces pickup from the supply and lowers the output impedance. This additional filtering is helpful in mixed analog/digital systems with common supplies or systems employing switching ...

Page 15

... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 16

... Gain Bandwidth REF CC 10 CSADC 6 CSMUX 5, 14 12-BIT CLK + SAMPLING ADC OUT 7 – LTC1598 GND 4, 9 1218/19 • TA05 , 100nV/ C Drift, 0.7MHz GBW, 0.5V/ s OS(MAX) , 400kHz GBW, 0.13V/ s Slew Rate, , OS(MAX) 12189f LT/TP 0697 7K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1997 ...

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