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参数资料
| 型号： | LT1469IS8#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP 16BIT DUAL 90MHZ 8SOIC |
| 标准包装： | 2,500 |
| 放大器类型： | 通用 |
| 电路数： | 2 |
| 转换速率： | 22 V/µs |
| 增益带宽积： | 90MHz |
| 电流 - 输入偏压： | 10nA |
| 电压 - 输入偏移： | 50µV |
| 电流 - 电源： | 4.1mA |
| 电流 - 输出 / 通道： | 22mA |
| 电压 - 电源，单路/双路(±)： | ±2.5 V ~ 18 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 带卷 (TR) |
LT1469
1
1469fb
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Dual 90MHz, 22V/s
16-Bit Accurate Operational Amplifier
The LT1469 is a dual, precision high speed operational
amplifier with 16-bit accuracy and 900ns settling to 150V
for 10V steps. This unique blend of precision and AC
performance makes the LT1469 the optimum choice for
highaccuracyapplicationssuchasDACcurrent-to-voltage
conversion and ADC buffers. The initial accuracy and drift
characteristicsoftheinputoffsetvoltageandinvertinginput
bias current are tailored for inverting applications.
The 90MHz 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 22V/s slew rate of the LT1469 improves large signal
performance compared to other precision op amps in
applications such as active filters and instrumentation
amplifiers.
The LT1469 is available in a space saving 4mm
× 4mm
leadless package, as well as in small outline and DIP pack-
ages. A single version, the LT1468, is also available.
16-Bit DAC I-to-V Converter and Reference Inverter for Bipolar Output Swing (VOUT = –10V to 10V)
n
90MHz Gain Bandwidth, f = 100kHz
n
Maximum Input Offset Voltage: 125V
n
Settling Time: 900ns (AV = –1, 150V, 10V Step)
n
22V/s Slew Rate
n
Low Distortion: –96.5dB for 100kHz, 10VP-P
n
Maximum Input Offset Voltage Drift: 3V/°C
n
Maximum Inverting Input Bias Current: 10nA
n
Minimum DC Gain: 300V/mV
n
Minimum Output Swing into 2k: ±12.8V
n
Unity-Gain Stable
n
Input Noise Voltage: 5nV/√Hz
n
Input Noise Current: 0.6pA/√Hz
n
Total Input Noise Optimized for 1kΩ < RS < 20kΩ
n
Specified at ±5V and ±15V Supplies
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 Amplifiers
Bipolar Multiplying Mode (LTC1597)
Signal-to-(Noise + Distortion)
15pF
2.4s SETTLING TIME
TO 1LSB ON 20V STEP
RLPF
LTC1597
16 BITS
DAC INPUTS
VREF
1469 TA01
15pF
CLPF
VOUT
–
+
–
+
1/2 LT1469
12k
–15V
15V
FREQUENCY (Hz)
90
SIGNAL/(NOISE
+
DISTOR
TION)
(dB)
70
50
40
10
1k
10k
100k
1469 TA01a
110
100
60
80
100
DAC INPUT CODE = ALL ZEROS
VREF = 20VP-P
500kHz FILTER
80kHz FILTER
30kHz
FILTER
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
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