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参数资料
| 型号： | DC746A |
| 厂商： | Linear Technology |
| 文件页数： | 3/36页 |
| 文件大小： | 0K |
| 描述： | BOARD DELTA SIGMA ADC LTC2412 |
| 软件下载： | QuikEval System |
| 设计资源： | DC746A Design File DC746A Schematic |
| 标准包装： | 1 |
| 系列： | QuikEval™ |
| ADC 的数量： | 1 |
| 位数： | 24 |
| 采样率（每秒）： | 7.5 |
| 数据接口： | MICROWIRE?，串行，SPI? |
| 工作温度： | 0°C ~ 70°C |
| 已用 IC / 零件： | LTC2412 |
| 已供物品： | 板 |
| 相关产品： | DC590B-ND - BOARD DEMO USB SERIAL CONTROLLER LTC2412IGN#PBF-ND - IC ADC 2CH DIFF-IN 24BIT 16SSOP LTC2412IGN#TRPBF-ND - IC ADC 2CH DIFF-IN 24BIT 16SSOP LTC2412CGN#TRPBF-ND - IC ADC 2CH DIFF-IN 24BIT 16SSOP LTC2412CGN#PBF-ND - IC ADC 2CH DIFF-IN 24BIT 16SSOP LTC2412IGN#TR-ND - IC CONV A/D 24B 2CH DIFF 16-SSOP LTC2412CGN#TR-ND - IC CONV A/D 24B 2CH DIFF 16-SSOP LTC2412IGN-ND - IC CONV A/D 24B 2CH DIFF 16-SSOP LTC2412CGN-ND - IC ADC 2CH DIFF-IN 24BIT 16SSOP |
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LTC2412
11
2412f
TEST CIRCUITS
FU CTIO AL BLOCK DIAGRA
UU
W
Figure 1. Functional Block Diagram
PI FU CTIO S
UU
U
FO (Pin 14): Frequency Control Pin. Digital input that
controls the ADC’s notch frequencies and conversion
time. When the FO pin is connected to VCC (FO = VCC), the
converter uses its internal oscillator and the digital filter
first null is located at 50Hz. When the FO pin is connected
to GND (FO = OV), the converter uses its internal oscillator
and the digital filter first null is located at 60Hz. When FO
is driven by an external clock signal with a frequency fEOSC,
the converter uses this signal as its system clock and the
digital filter first null is located at a frequency fEOSC/2560.
AUTOCALIBRATION
AND CONTROL
DECIMATING FIR
CH0/CH1
INTERNAL
OSCILLATOR
SERIAL
INTERFACE
PING-PONG
DIFFERENTIAL
3RD ORDER
Σ MODULATOR
+–
MUX
GND
REF+
CH0+
IN+
IN–
CH0–
CH1+
CH1–
REF –
VCC
SCK
SDO
CS
FO
(INT/EXT)
2412 FD
1.69k
SDO
2412 TA03
Hi-Z TO VOH
VOL TO VOH
VOH TO Hi-Z
CLOAD = 20pF
1.69k
SDO
2412 TA04
Hi-Z TO VOL
VOH TO VOL
VOL TO Hi-Z
CLOAD = 20pF
VCC
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