Datasheet > LT1469ACDF-2-PBF

LT1469ACDF-2-PBF

更新时间： 2022-12-19 04:03:12

品牌	Logo	应用领域
凌特 - Linear		运算放大器
页数	文件大小	规格书
12页	190K
描述
Dual 200MHz, 30V/μs 16-Bit Accurate AV ≥ 2 Op Amp

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LT1469ACDF-2-PBF 数据手册

LT1469-2

Dual 200MHz, 30V/µs

16-Bit Accurate A ≥ 2 Op Amp

FEATURES

DESCRIPTION

The LT^®1469-2 is a dual, precision high speed opera-

tional ampliﬁer with 16-bit accuracy, decompensated to

be stable in a gain of 2 or greater. The combination of

precision and AC performance makes the LT1469-2 the

optimum choice for high accuracy applications such as

DAC current-to-voltage conversion and ADC buffers. The

initial accuracy and drift characteristics of the input offset

voltage and inverting input bias current are tailored for

inverting applications.

Stable in Gain A ≥ 2 (A = –1)

200MHz Gain Bandwidth Product

30V/μs Slew Rate

Settling Time: 800ns (150ꢀV, 10V Step)

Speciﬁed at 5V and 15V Supplies

Maximum Input Offset Voltage: 125μV

Low Distortion: ꢀ96.±dB for 100kHz, 105

P-P

Maximum Input Offset 5oltage Drift: 3μ5/ꢁC

Maximum Inverting Input Bias Current: 10nA

Minimum DC Gain: 3005/m5

Minimum Output Swing into 2k: ±12.ꢂ5

Input Noise 5oltage: ±n5/√Hz

Input Noise Current: 0.6pA/√Hz

The 200MHz gain bandwidth ensures high open-loop gain

at frequency for reducing distortion. In noninverting ap-

plications such as an ADC buffer, the low distortion and

DC accuracy allow full 16-bit AC and DC performance.

The high slew rate of the LT1469-2 improves large-signal

performance in applications such as active ﬁlters and

instrumentation ampliﬁers compared to other precision

op amps.

Total Input Noise Optimized for 1kΩ < R < 20kΩ

Available in ꢂ-Lead Plastic SO and

12-Lead (4mm × 4mm) DFN Packages

APPLICATIONS

The LT1469-2 is speciﬁed on power supply voltages of

±±5 and ±1±5 and from ꢀ40ꢁC to ꢂ±ꢁC. It is available in

an ꢂ-lead SOIC package and a space saving 4mm × 4mm

leadlesspackage.Foraunity-gainstableopampwithsame

DC performance, see the LT1469 datasheet.

Precision Instrumentation

High Accuracy Data Acquisition Systems

16-Bit DAC Current-to-5oltage Converter

ADC Buffer

Low Distortion Active Filters

L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other

trademarks are the property of their respective owners.

Photodiode Ampliﬁers

TYPICAL APPLICATION

16-Bit DAC I-to-V Converter

Large-Signal Transient, A_V= –1

= ±1±5

= ꢀ1

105

20pF

= R = 2k

= 22pF

DAC

ꢀ

INPUTS

1/2

25/DI5

OUT

LT1469-2

LTC^®1±97

±0pF

OPTIONAL NOISE FILTER

OFFSET: 5 + I (6kꢃ) < 1LSB

SETTLING TIME TO 1±0μ5 = 1.6μs

SETTLING LIMITED BY 6k AND 20pF TO COMPENSATE DAC OUTPUT CAPACITANCE

14692 TA01a

200ns/DI5

14692 TA02

14692f

12 3 4 5 6 7...12

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