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參數(shù)資料
| 型號： | LT1993IUD-10#PBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 6/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DIFF AMP/ADC DRVR 16-QFN |
| 標(biāo)準(zhǔn)包裝： | 121 |
| 放大器類型： | 差分 |
| 電路數(shù)： | 2 |
| 輸出類型： | 差分 |
| 轉(zhuǎn)換速率： | 1100 V/µs |
| -3db帶寬： | 700MHz |
| 電流 - 輸入偏壓： | 5µA |
| 電壓 - 輸入偏移： | 1000µV |
| 電流 - 電源： | 100mA |
| 電流 - 輸出 / 通道： | 45mA |
| 電壓 - 電源，單路/雙路(±)： | 4 V ~ 5.5 V，±2 V ~ 2.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 16-QFN-EP（3x3） |
| 包裝： | 管件 |
LT1993-10
14
199310fb
APPLICATIO S I FOR ATIO
WU
U
Large Output Voltage Swings
The LT1993-10 has been designed to provide the 3.2VP-P
output swing needed by the LTC1748 family of 14-bit
low-noise ADCs. This additional output swing improves
system SNR by up to 4dB. Typical performance curves
and AC specications have been included for these
applications.
Input Bias Voltage and Bias Current
The input pins of the LT1993-10 are internally biased to
the voltage applied to the VOCM pin. No external biasing
resistors are needed, even for AC-coupled operation. The
input bias current is determined by the voltage difference
between the input common mode voltage and the VOCMpin
(which sets the output common mode voltage). At both
the positive and negative inputs, any voltage difference is
imposed across 100
Ω, generating an input bias current.
For example, if the inputs are tied to 2.5V with the VOCM
pin at 2.2V, then a total input bias current of 3mA will ow
into the LT1993-10’s +INA and +INB pins. Furthermore,
an additional input bias current totaling 3mA will ow into
the –INA and –INB inputs.
Application (Demo) Boards
The DC800A Demo Board has been created for stand-alone
evaluation of the LT1993-10 with either single-ended or
differential input and output signals. As shown, it accepts
a single-ended input and produces a single-ended output
so that the LT1993-10 can be evaluated using standard
laboratory test equipment. For more information on this
Demo Board, please refer to the Demo Board section of
this datasheet.
There are also additional demo boards available that
combine the LT1993-10 with a variety of different Linear
Technology ADCs. Please contact the factory for more
information on these demo boards.
199310 F09
IF IN
LT1993-10
–INA
–INB
VOCM
2
31
6
7
1
2
+INB
+INA
14
13
15
80.6
9
16
10
9
10
9
LTC22xx
0.1
mF
0.1
mF
+OUTFILTERED
–OUTFILTERED
AIN+
AIN–
4.02k
11k
1.9V
1.5V
3V
VCM
Figure 9. Level Shifting 3V ADC VCM Voltage for
Improved SFDR
3.00
± 0.10
(4 SIDES)
NOTE:
1. DRAWING CONFORMS TO JEDEC PACKAGE OUTLINE MO-220 VARIATION (WEED-2)
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
PIN 1
TOP MARK
(NOTE 6)
0.40
± 0.10
BOTTOM VIEW—EXPOSED PAD
1.45
± 0.10
(4-SIDES)
0.75
± 0.05
R = 0.115
TYP
0.25
± 0.05
1
PIN 1 NOTCH R = 0.20 TYP
OR 0.25
× 45° CHAMFER
15
16
2
0.50 BSC
0.200 REF
0.00 – 0.05
(UD16) QFN 0904
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
1.45
± 0.05
(4 SIDES)
2.10
± 0.05
3.50
± 0.05
0.70
±0.05
0.25
±0.05
0.50 BSC
PACKAGE
OUTLINE
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION
ON THE TOP AND BOTTOM OF PACKAGE
UD Package
16-Lead Plastic QFN (3mm
× 3mm)
(Reference LTC DWG # 05-08-1691)
PACKAGE DESCRIPTIO
U
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1993IUD-2 | 制造商:Linear Technology 功能描述:SP Amp DIFF AMP Single 5.5V 16-Pin QFN EP |
| LT1993IUD-2#PBF | 功能描述:IC DIFF AMP/ADC DRVR 16-QFN RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱:OP481GRUZ-REELCT |
| LT1993IUD-2#TRPBF | 功能描述:IC DIFF AMP/ADC DRVR 16-QFN RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:73 系列:Over-The-Top® 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.07 V/µs 增益帶寬積:200kHz -3db帶寬:- 電流 - 輸入偏壓:1nA 電壓 - 輸入偏移:285µV 電流 - 電源:50µA 電流 - 輸出 / 通道:25mA 電壓 - 電源，單路/雙路(±):2 V ~ 44 V，±1 V ~ 22 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:16-DFN-EP（5x3） 包裝:管件 |
| LT1993IUD-4 | 制造商:Linear Technology 功能描述:SC-Amps/High Speed, 900MHz Low Noise/Distortion Differential Amplifer 制造商:Linear Technology 功能描述:IC,Differential Amplifier,SINGLE,LLCC,16PIN,PLASTIC , RoHS Compliant: No |
| LT1993IUD-4#PBF | 功能描述:IC DIFF AMP/ADC DRVR 16-QFN RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱:OP481GRUZ-REELCT |
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