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| 型号： | DC1813A-H |
| 厂商： | Linear Technology |
| 文件页数： | 10/28页 |
| 文件大小： | 0K |
| 描述： | BOARD SAR ADC LTC2364-18 |
| 软件下载： | QuikEval II System |
| 设计资源： | DC1813A Design File DC1813A Schematic |
| 标准包装： | 1 |
| 系列： | QuikEval-II™ |
| ADC 的数量： | 1 |
| 位数： | 18 |
| 采样率（每秒）： | 250k |
| 数据接口： | 串行，SPI? |
| 输入范围： | 0 ~ VREF |
| 在以下条件下的电源（标准）： | 3.4mW @ 250kSPS |
| 工作温度： | 0°C ~ 70°C |
| 已用 IC / 零件： | LTC2364-18 |
| 已供物品： | 板 |
| 相关产品： | LTC2364HMS-18#TRPBF-ND - IC ADC 18BIT 250K 1CH 16MSOP LTC2364HMS-18#PBF-ND - IC ADC 18BIT 250K 1CH 16MSOP LTC2364CMS-18#TRPBF-ND - IC ADC 18BIT 250K 1CH 16MSOP LTC2364CDE-18#TRPBF-ND - IC ADC 18BIT 250K 1CH 16DFN LTC2364IMS-18#TRPBF-ND - IC ADC 18BIT 250K 1CH 16MSOP LTC2364IDE-18#TRPBF-ND - IC ADC 18BIT 250K 1CH 16DFN LTC2364IMS-18#PBF-ND - IC ADC 18BIT 250K 1CH 16MSOP LTC2364IDE-18#PBF-ND - IC ADC 18BIT 250K 1CH 16DFN LTC2364CDE-18#PBF-ND - IC ADC 18BIT SPI/SRL 250K 16DFN LTC2364CMS-18#PBF-ND - IC ADC 18BIT SPI/SRL 250K 16MSOP 更多... |
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LT6202/LT6203/LT6204
18
620234fd
Amplifier Characteristics
Figure 1 shows a simplified schematic of the LT6202/
LT6203/LT6204, which has two input differential ampli-
fiers in parallel that are biased on simultaneously when
the common mode voltage is at least 1.5V from either
rail. This topology allows the input stage to swing from
the positive supply voltage to the negative supply voltage.
As the common mode voltage swings beyond VCC – 1.5V,
current source I1 saturates and current in Q1/Q4 is zero.
Feedback is maintained through the Q2/Q3 differential
amplifier, but with an input gm reduction of 1/2. A similar
effect occurs with I2 when the common mode voltage
swings within 1.5V of the negative rail. The effect of the
gm reduction is a shift in the VOS as I1 or I2 saturate.
APPLICATIONS INFORMATION
Input bias current normally flows out of the + and – inputs.
The magnitude of this current increases when the input
common mode voltage is within 1.5V of the negative rail,
and only Q1/Q4 are active. The polarity of this current
reverses when the input common mode voltage is within
1.5V of the positive rail and only Q2/Q3 are active.
The second stage is a folded cascode and current mir-
ror that converts the input stage differential signals to a
single ended output. Capacitor C1 reduces the unity cross
frequency and improves the frequency stability with-
out degrading the gain bandwidth of the amplifier. The
differential drive generator supplies current to the output
transistors that swing from rail-to-rail.
DIFFERENTIAL
DRIVE
GENERATOR
+
–
R1
R2
R3
R4
R5
Q2
Q3
Q5
Q6
Q9
Q8
Q7
Q10
Q11
Q1
Q4
I1
I2
D3
D2
D1
DESD2
DESD4
DESD3
DESD1
DESD5
DESD6
+
–
VBIAS
CM
C1
+V
–V
V+
V–
6203/04 F01
Figure 1. Simplified Schematic
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DC1814A-A | 制造商:Linear Technology 功能描述:BOARD EVAL FOR LTC4274A-1 制造商:Linear Technology 功能描述:LTC4274A LTPOE++ PSE CTRL EVAL BOARD 制造商:Linear Technology 功能描述:DEMO BOARD, LTC4274A-1 POWER OVER ETHERNET (POE), Silicon Manufacturer:Linear Technology, Silicon Core Number:LTC4274A-1, Kit Application Type:Power Management, Application Sub Type:Power Over Ethernet (POE) |
| DC1814A-B | 制造商:Linear Technology 功能描述:BOARD EVAL FOR LTC4274A-2 制造商:Linear Technology 功能描述:LTC4274A LTPOE++ PSE CTRL EVAL BOARD 制造商:Linear Technology 功能描述:LTC4274A, LTPOE++ PSE CTRL, EVAL BOARD 制造商:Linear Technology 功能描述:DEMO BOARD, LTC4274A-2 POWER OVER ETHERNET (POE), Silicon Manufacturer:Linear Te 制造商:Linear Technology 功能描述:DEMO BOARD, LTC4274A-2 POWER OVER ETHERNET (POE), Silicon Manufacturer:Linear Technology, Silicon Core Number:LTC4274A-2, Kit Application Type:Power Management, Application Sub Type:Power Over Ethernet (POE) |
| DC1814A-C | 制造商:Linear Technology 功能描述:BOARD EVAL FOR LTC4274A-3 制造商:Linear Technology 功能描述:LTC4274A LTPOE++ PSE CTRL EVAL BOARD 制造商:Linear Technology 功能描述:DEMO BOARD, LTC4274A-3 POWER OVER ETHERNET (POE), Silicon Manufacturer:Linear Te 制造商:Linear Technology 功能描述:DEMO BOARD, LTC4274A-3 POWER OVER ETHERNET (POE), Silicon Manufacturer:Linear Technology, Silicon Core Number:LTC4274A-3, Kit Application Type:Power Management, Application Sub Type:Power Over Ethernet (POE) |
| DC1814A-D | 制造商:Linear Technology 功能描述:BOARD EVAL FOR LTC4274A-4 制造商:Linear Technology 功能描述:LTC4274A LTPOE++ PSE CTRL EVAL BOARD 制造商:Linear Technology 功能描述:DEMO BOARD, LTC4274A-4 POWER OVER ETHERNET (POE), Silicon Manufacturer:Linear Te |
| DC1815A-A | 制造商:Linear Technology 功能描述:BOARD EVAL FOR LTC4266A-1 |
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