Datasheet LT1466L, LT1467L (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | Micropower Dual/Quad Precision Rail-to-Rail Input and Output Op Amps |
| 页数 / 页 | 12 / 1 — FEATURES. DESCRIPTION. Rail-to-Rail Input and Output. Low Supply Current: … |
| 文件格式/大小 | PDF / 249 Kb |
| 文件语言 | 英语 |
FEATURES. DESCRIPTION. Rail-to-Rail Input and Output. Low Supply Current: 75. A Max. 390. V V. OS(MAX) for VCM = V – to V +
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LT1466L/LT1467L Micropower Dual/Quad Precision Rail-to-Rail Input and Output Op Amps
U FEATURES DESCRIPTION
■
Rail-to-Rail Input and Output
The LT®1466L/LT1467L are dual/quad bipolar op amps ■
Low Supply Current: 75
µ
A Max
that combine rail-to-rail input and output operation with ■
390
µ
V V
precision specifications. Using a patented technique,
OS(MAX) for VCM = V – to V +
■
High Common Mode Rejection Ratio: 83dB Min
both input stages of the LT1466L/LT1467L are trimmed: ■ High A one at the negative supply and the other at the positive VOL: 400V/mV Min ■ Wide Supply Range: 2V to ±5V supply. The resulting common mode rejection of 83dB ■ Low Input Bias Current: 6nA Typ minimum is much better than other rail-to-rail input op ■ 120kHz Gain Bandwidth Product amps. A minimum open-loop gain of 400V/mV into a 10k load virtually eliminates all gain error. Operation is speci-
U
fied for 3V, 5V and ± 5V supplies.
APPLICATIONS
Unlike other rail-to-rail amplifiers, the input offset voltage ■ Supply Current Sensing of 390µV maximum is guaranteed across the entire rail-to- ■ rail input range, not just at half supply. The graph below Driving A/D Converters ■ contrasts the V Test Equipment Amplifiers OS specifications of the LT1466L/LT1467L to a competitive part that is specified only at half supply. As can be seen, the LT1466L/LT1467L’s limits are much tighter for inputs near either supply. The LT1466L is available in 8-lead PDIP and SO-8 pack- ages with the standard dual pinout. The LT1467L features the standard quad pinout and is available in a 16-lead narrow SO package. , LTC and LT are registered trademarks of Linear Technology Corporation.
U TYPICAL APPLICATION Worst-Case VOS Variable Current Source vs Input Common Mode Voltage
VCC 2000 TYPICAL RAIL-TO-RAIL R3 µV) AMPLIFIER (65dB CMRR) R2 5.1Ω 1000 10k VIN + + 0 LT1467L LIMITS 0V TO 2.5V 1/2 LT1466L VN2222 10k 1/2 LT1466L TP0610 – – –1000 INPUT OFFSET VOLTAGE ( IO –2000 R2 ( ) 1( ) R1 IO = VIN R1 R3 100k 0 1 2 3 4 5 V = IN ( ) INPUT COMMON MODE VOLTAGE (V) 51Ω 1466L/67L TA01 1466L/67L TA02 1
U FEATURES DESCRIPTION
■
Rail-to-Rail Input and Output
The LT®1466L/LT1467L are dual/quad bipolar op amps ■
Low Supply Current: 75
µ
A Max
that combine rail-to-rail input and output operation with ■
390
µ
V V
precision specifications. Using a patented technique,
OS(MAX) for VCM = V – to V +
■
High Common Mode Rejection Ratio: 83dB Min
both input stages of the LT1466L/LT1467L are trimmed: ■ High A one at the negative supply and the other at the positive VOL: 400V/mV Min ■ Wide Supply Range: 2V to ±5V supply. The resulting common mode rejection of 83dB ■ Low Input Bias Current: 6nA Typ minimum is much better than other rail-to-rail input op ■ 120kHz Gain Bandwidth Product amps. A minimum open-loop gain of 400V/mV into a 10k load virtually eliminates all gain error. Operation is speci-
U
fied for 3V, 5V and ± 5V supplies.
APPLICATIONS
Unlike other rail-to-rail amplifiers, the input offset voltage ■ Supply Current Sensing of 390µV maximum is guaranteed across the entire rail-to- ■ rail input range, not just at half supply. The graph below Driving A/D Converters ■ contrasts the V Test Equipment Amplifiers OS specifications of the LT1466L/LT1467L to a competitive part that is specified only at half supply. As can be seen, the LT1466L/LT1467L’s limits are much tighter for inputs near either supply. The LT1466L is available in 8-lead PDIP and SO-8 pack- ages with the standard dual pinout. The LT1467L features the standard quad pinout and is available in a 16-lead narrow SO package. , LTC and LT are registered trademarks of Linear Technology Corporation.
U TYPICAL APPLICATION Worst-Case VOS Variable Current Source vs Input Common Mode Voltage
VCC 2000 TYPICAL RAIL-TO-RAIL R3 µV) AMPLIFIER (65dB CMRR) R2 5.1Ω 1000 10k VIN + + 0 LT1467L LIMITS 0V TO 2.5V 1/2 LT1466L VN2222 10k 1/2 LT1466L TP0610 – – –1000 INPUT OFFSET VOLTAGE ( IO –2000 R2 ( ) 1( ) R1 IO = VIN R1 R3 100k 0 1 2 3 4 5 V = IN ( ) INPUT COMMON MODE VOLTAGE (V) 51Ω 1466L/67L TA01 1466L/67L TA02 1