参数资料
| 型号： | LT1993CUD-2#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC DIFF AMP/ADC DRVR 16-QFN |
| 标准包装： | 121 |
| 放大器类型： | 差分 |
| 电路数： | 2 |
| 输出类型： | 差分 |
| 转换速率： | 1100 V/µs |
| -3db带宽： | 800MHz |
| 电流 - 输入偏压： | 5µA |
| 电压 - 输入偏移： | 1000µV |
| 电流 - 电源： | 100mA |
| 电流 - 输出 / 通道： | 45mA |
| 电压 - 电源，单路/双路(±)： | 4 V ~ 5.5 V，±2 V ~ 2.5 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-QFN-EP（3x3） |
| 包装： | 管件 |
| 产品目录页面： | 1322 (CN2011-ZH PDF) |
LT1993-2
1
19932fa
800MHz Low Distortion, Low
Noise Differential Amplier/
ADC Driver (AV = 2V/V)
The LT1993-2 is a low distortion, low noise Differential
Amplier/ADC driver for use in applications from DC to
800MHz. The LT1993-2 has been designed for ease of
use, with minimal support circuitry required. Exception-
ally low input-referred noise and low distortion products
(with either single-ended or differential inputs) make the
LT1993-2 an excellent solution for driving high speed 12-
bit and 14-bit ADCs. In addition to the normal unltered
outputs (+OUT and –OUT), the LT1993-2 has a built-in
175MHz differential low pass lter and an additional pair
of ltered outputs (+OUTFILTERED, –OUTFILTERED) to
reduce external ltering components when driving high
speed ADCs. The output common mode voltage is easily set
via the VOCM pin, eliminating either an output transformer
or AC-coupling capacitors in many applications.
The LT1993-2 is designed to meet the demanding require-
ments of communications transceiver applications. It can
be used as a differential ADC driver, a general-purpose
differential gain block, or in any other application requir-
ing differential drive. The LT1993-2 can be used in data
acquisition systems required to function at frequencies
down to DC.
The LT1993-2 operates on a 5V supply and consumes
100mA. It comes in a compact 16-lead 3
× 3 QFN package
and operates over a –40°C to 85°C temperature range.
■ Differential ADC Driver for:
Imaging
Communications
■ Differential Driver/Receiver
■ Single Ended to Differential Conversion
■ Differential to Single Ended Conversion
■ Level Shifting
■ IF Sampling Receivers
■ SAW Filter Interfacing/Buffering
■ 800MHz –3dB Bandwidth
■ Fixed Gain of 2V/V (6dB)
■ Low Distortion:
38dBm OIP3, –70dBc HD3 (70MHz, 2VP-P)
51dBm OIP3, –94dBc HD3 (10MHz, 2VP-P)
■ Low Noise: 12.3dB NF, en = 3.8nV/√Hz (70MHz)
■ Differential Inputs and Outputs
■ Additional Filtered Outputs
■ Adjustable Output Common Mode Voltage
■ DC- or AC-Coupled Operation
■ Minimal Support Circuitry Required
■ Small 0.75mm Tall 16-Lead 3
× 3 QFN Package
4-Channel WCDMA Receive Channel
APPLICATIO S
U
FEATURES
DESCRIPTIO
U
TYPICAL APPLICATIO
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
2.2V
19932 TA01a
MINI-CIRCUITS
TCM4-19
1:4
Z-RATIO
LTC2255 125Msps
14-BIT ADC SAMPLING
AT 92.16Msps
70MHz
IF IN
52.3pF
82nH
0.1
F
0.1
F
12.2
LT1993-2
–INA
–INB
–OUTFILTERED
–OUT
+OUTFILTERED
+OUT
+INB
+INA
VOCM
ENABLE
12.2
LTC2255
ADC
AIN–
AIN+
FREQUENCY (MHz)
0
AMPLITUDE
(dBFS)
0
–20
–40
–80
–60
–100
–10
–30
–50
–90
–70
–110
–120
19932 TA01b
15
10
520
25
45
30
35
40
32768 POINT FFT
TONE CENTER FREQUENCIES
AT 62.5MHz, 67.5MHz,
72.5MHz, 77.5MHz
4-Tone WCDMA Waveform,
LT1993-2 Driving LTC2255 14-Bit
ADC at 92.16Msps
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| LT1993CUD-4 | 制造商:Linear Technology 功能描述:DIFF-AMPLIFIER, 900MHZ, 1.1KV/US, QFN-16, No. of Amplifiers:2, Input Offset Voltage:1mV, Gain dB Max:12.4dB, Bandwidth:900MHz, Amplifier Case Style:QFN, No. of Pins:16, Supply Voltage Range:4V to 5.5V, Slew Rate:1.1kV/s, MSL:- |
| LT1993CUD-4#PBF | 功能描述:IC DIFF AMP/ADC DRVR 16-QFN RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.028 V/µs 增益带宽积:105kHz -3db带宽:- 电流 - 输入偏压:3nA 电压 - 输入偏移:100µV 电流 - 电源:3.3µA 电流 - 输出 / 通道:12mA 电压 - 电源，单路/双路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:剪切带 (CT) 其它名称:OP481GRUZ-REELCT |
| LT1993CUD-4#TR | 制造商:Linear Technology 功能描述:DIFF-AMPLIFIER, 900MHZ, 1.1KV/US, QFN-16, No. of Amplifiers:2, Input Offset Voltage:1mV, Gain dB Max:12.4dB, Bandwidth:900MHz, Amplifier Case Style:QFN, No. of Pins:16, Supply Voltage Range:4V to 5.5V, Slew Rate:1.1kV/s, MSL:- |
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| LT1993IUD-10 | 制造商:LINER 制造商全称:Linear Technology 功能描述:700MHz Low Distortion, Low Noise Differential Amplifi er/ADC Driver (AV = 10V/V) |
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