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參數(shù)資料
| 型號： | DC1011A-A |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 2/38頁 |
| 文件大小： | 0K |
| 描述： | BOARD DELTA SIGMA ADC LTC2498 |
| 軟件下載： | QuikEval System |
| 設計資源： | DC1011A Schematic DC1011A Design Files |
| 標準包裝： | 1 |
| 系列： | Easy Drive™, QuikEval™ |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 24 |
| 采樣率（每秒）： | 7.5 |
| 數(shù)據(jù)接口： | MICROWIRE?，串行，SPI? |
| 已用 IC / 零件： | LTC2498 |
| 已供物品： | 板 |
| 相關產(chǎn)品： | LTC2498HUHF#TRPBF-ND - IC ADC 24BIT 16CH DELTA 38-QFN LTC2498HUHF#PBF-ND - IC ADC 24BIT 16CH DELTA 38-QFN LTC2498IUHF#TRPBF-ND - IC ADC 24BIT 16CH 38-QFN LTC2498CUHF#TRPBF-ND - IC ADC 24BIT 16CH 38-QFN LTC2498IUHF#PBF-ND - IC ADC 24BIT 16CH 38-QFN LTC2498CUHF#PBF-ND - IC ADC 24BIT 16CH 38-QFN |
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LTC2498
10
2498ff
GND (Pins 1, 3, 4, 5, 6, 31, 32, 33): Ground. Multiple
groundpinsinternallyconnectedforoptimumgroundcur-
rent flow and VCC decoupling. Connect each one of these
pins to a common ground plane through a low impedance
connection. All eight pins must be connected to ground
for proper operation.
NC (Pin 2): No Connection. This pin can be left floating
or tied to GND.
COM (Pin 7): The Common Negative Input (IN–) for All
Single-Ended Multiplexer Configurations. The voltage on
CH0 to CH15 and COM pins can have any value between
GND – 0.3V to VCC + 0.3V. Within these limits, the two
selected inputs (IN+ and IN–) provide a bipolar input range
(VIN = IN+ – IN–) from –0.5 VREF to 0.5 VREF. Outside
thisinputrange,theconverterproducesuniqueover-range
and under-range output codes.
CH0 to CH15 (Pins 8 to 23): Analog Inputs. May be pro-
grammed for single-ended or differential mode.
MUXOUTP (Pin 24): Positive Multiplexer Output. Used
to drive an external buffer/amplifier or can be shorted
directly to ADCINP.
ADCINP (Pin 25): Positive ADC Input. Tie to the output
of a buffer/amplifier driven by MUXOUTP or tie directly
to MUXOUTP.
ADCINN (Pin 26): Negative ADC Input. Tie to the output
of a buffer/amplifier driven by MUXOUTN or tie directly
to MUXOUTN.
MUXOUTN (Pin 27): Negative Multiplexer Output. Used
to drive an external buffer/amplifier or can be shorted
directly to ADCINN.
VCC(Pin28):PositiveSupplyVoltage.BypasstoGNDwith
a 10F tantalum capacitor in parallel with a 0.1F ceramic
capacitor as close to the part as possible.
REF+(Pin29),REF–(Pin30):DifferentialReferenceInput.
The voltage on these pins can have any value between
GND and VCC as long as the reference positive input, REF+,
remains more positive than the negative reference input,
REF–, by at least 0.1V. The differential voltage (REF = REF+
– REF–) sets the full-scale range for all input channels.
When performing an on-chip temperature measurement,
the minimum value of REF = 2V.
typical perForMance characteristics
PSRR vs Frequency at VCC
(2x Speed Mode)
PSRR vs Frequency at VCC
(2x Speed Mode)
FREQUENCY AT VCC (Hz)
0
–140
RREJECTION
(dB)
–120
–80
–60
–40
0
20
100
140
2498 G37
–100
–20
80
180
220
200
40 60
120
160
VCC = 4.1V DC ±1.4V
REF+ = 2.5V
REF– = GND
IN+ = GND
IN– = GND
fO = GND
TA = 25°C
FREQUENCY AT VCC (Hz)
30600
–60
–40
0
30750
2498 G38
–80
–100
30650
30700
30800
–120
–140
–20
REJECTION
(dB)
VCC = 4.1V DC ±0.7V
REF+ = 2.5V
REF– = GND
IN+ = GND
IN– = GND
fO = GND
TA = 25°C
pin Functions
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DC1011A-B | 功能描述:BOARD DELTA SIGMA ADC LTC2496 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:Easy Drive™, QuikEval™ 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標準）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
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