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LT1469IDF-2#PBF 数据手册 - Linear Technology（凌力尔特）
制造商:
Linear Technology（凌力尔特）
分类:
运算放大器
封装:
DFN-12
描述:
LINEAR TECHNOLOGY LT1469IDF-2#PBF 运算放大器, 双路, 90 MHz, 2个放大器, 22 V/µs, ± 4.5V 至 ± 15V, DFN, 12 引脚
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LT1469IDF-2#PBF数据手册
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LT1469-2
1
14692f
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Dual 200MHz, 30V/µs
16-Bit Accurate A
V
≥ 2 Op Amp
The LT
®
1469-2 is a dual, precision high speed opera-
tional amplifi er 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.
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 fi lters and
instrumentation amplifi ers compared to other precision
op amps.
The LT1469-2 is specifi ed on power supply voltages of
±5V and ±15V and from –40°C to 85°C. It is available in
an 8-lead SOIC package and a space saving 4mm × 4mm
leadless package. For a unity-gain stable op amp with same
DC performance, see the LT1469 datasheet.
n
Stable in Gain A
V
≥ 2 (A
V
= –1)
n
200MHz Gain Bandwidth Product
n
30V/s Slew Rate
n
Settling Time: 800ns (150µV, 10V Step)
n
Specifi ed at ±5V and ±15V Supplies
n
Maximum Input Offset Voltage: 125V
n
Low Distortion: –96.5dB for 100kHz, 10V
P-P
n
Maximum Input Offset Voltage Drift: 3µV/°C
n
Maximum Inverting Input Bias Current: 10nA
n
Minimum DC Gain: 300V/mV
n
Minimum Output Swing into 2k: ±12.8V
n
Input Noise Voltage: 5nV/√Hz
n
Input Noise Current: 0.6pA/√Hz
n
Total Input Noise Optimized for 1k < R
S
< 20k
n
Available in 8-Lead Plastic SO and
12-Lead (4mm × 4mm) DFN Packages
n
Precision Instrumentation
n
High Accuracy Data Acquisition Systems
n
16-Bit DAC Current-to-Voltage Converter
n
ADC Buffer
n
Low Distortion Active Filters
n
Photodiode Amplifi ers
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
16-Bit DAC I-to-V Converter Large-Signal Transient, A
V
= –1
20pF
6k
LTC
®
1597
1/2
LT1469-2
16
DAC
INPUTS
+
–
OFFSET: V
OS
+ I
B
(6kΩ) < 1LSB
SETTLING TIME TO 150µV = 1.6µs
SETTLING LIMITED BY 6k AND 20pF TO COMPENSATE DAC OUTPUT CAPACITANCE
V
OUT
2k
50pF
OPTIONAL NOISE FILTER
14692 TA01a
200ns/DIV
10V
14692 TA02
0V
V
S
= ±15V
A
V
= –1
R
F
= R
G
= 2k
C
F
= 22pF
2V/DIV
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