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| 型号： | DC1339A |
| 厂商： | Linear Technology |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | BOARD SAR ADC LTC2302 |
| 软件下载： | QuikEval System |
| 设计资源： | DC1339A Design File DC1339A Schematic |
| 标准包装： | 1 |
| 系列： | QuikEval™ |
| ADC 的数量： | 1 |
| 位数： | 12 |
| 采样率（每秒）： | 500k |
| 数据接口： | MICROWIRE?，串行，SPI? |
| 输入范围： | ±VREF/2 |
| 在以下条件下的电源（标准）： | 14mW @ 500kSPS |
| 已用 IC / 零件： | LTC2302 |
| 已供物品： | 板 |
| 相关产品： | LTC2302IDD#TRPBF-ND - IC ADC 12-BIT 1CH 500KSPS 10DFN LTC2302IDD#PBF-ND - IC ADC 12BIT 1CH 500KSPS 10-DFN LTC2302CDD#TRPBF-ND - IC ADC 12-BIT 1CH 500KSPS 10DFN LTC2302CDD#PBF-ND - IC ADC 12BIT 1CH 500KSPS 10-DFN |
LTC2302/LTC2306
1
23026fa
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Low Noise, 500ksps,
1-/2-Channel, 12-Bit ADCs
The LTC
2302/LTC2306arelownoise,500ksps,1-/2-chan-
nel, 12-bit ADCs with an SPI/MICROWIRE compatible
serial interface. These ADCs include a fully differential
sample-and-hold circuit to reduce common mode noise.
The internal conversion clock allows the external serial
output data clock (SCK) to operate at any frequency up
to 40MHz.
The LTC2302/LTC2306 operate from a single 5V supply
and draw just 2.8mA at a sample rate of 500ksps. The
auto-shutdown feature reduces the supply current to 14μA
at a sample rate of 1ksps.
The LTC2302/LTC2306 are packaged in a tiny 10-pin 3mm
× 3mm DFN. The low power consumption and small size
make the LTC2302/LTC2306 ideal for battery-operated
and portable applications, while the 4-wire SPI compat-
ible serial interface makes these ADCs a good match for
isolated or remote data acquisition systems.
8192 Point FFT, fIN = 1kHz (LTC2306)
n 12-Bit Resolution
n 500ksps Sampling Rate
n Low Noise: SINAD = 72.8dB
n Guaranteed No Missing Codes
n Single 5V Supply
n Auto-Shutdown Scales Supply Current with Sample
Rate
n Low Power: 14mW at 500ksps
70μW at 1ksps
35μW Sleep Mode
n 1-Channel (LTC2302) and 2-Channel (LTC2306)
Versions
n Unipolar or Bipolar Input Ranges (Software
Selectable)
n Internal Conversion Clock
n SPI/MICROWIRE Compatible Serial Interface
n Separate Output Supply OVDD (2.7V to 5.25V)
n Software Compatible with the LTC2308
n 10-Pin (3mm × 3mm) DFN Package
n High Speed Data Acquisition
n Industrial Process Control
n Motor Control
n Accelerometer Measurements
n Battery-Operated Instruments
n Isolated and/or Remote Data Acquisition
TYPE
NUMBER OF INPUT CHANNELS
128
Int Reference
LTC2308
Ext Reference
LTC2302
LTC2306
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
SDI
SDO
SCK
CONVST
23026 TA01
SERIAL
PORT
ANALOG
INPUT
MUX
CH0 (IN+)
CH1 (IN–)
ANALOG INPUTS
0V TO 4.096V UNIPOLAR
±2.048V BIPOLAR
VREF
2.7V TO 5.25V
SERIAL DATA LINK TO
ASIC, PLD, MPU, DSP
OR SHIFT REGISTER
LTC2302
LTC2306
VDD
OVDD
GND
0.1μF
5V
12-BIT
500ksps
ADC
+
–
0.1μF
PIN NAMES IN PARENTHESIS
REFER TO LTC2302
10μF
0.1μF
10μF
FREQUENCY (kHz)
0
–40
–20
0
200
23026 TA01b
–60
–80
50
100
150
250
–100
–120
–50
–30
–10
–70
–90
–110
–130
–140
MAGNITUDE
(dB)
fSMPL = 500kHz
SINAD = 72.8dB
THD = –88.7dB
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