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参数资料
| 型号： | LTC1402CGN#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | ADC |
| 英文描述： | Serial 12-Bit, 2.2Msps Sampling ADC with Shutdown; Package: SSOP; No of Pins: 16; Temperature Range: 0°C to +70°C |
| 中文描述： | 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16 |
| 封装： | 0.150 INCH, PLASTIC, SSOP-16 |
| 文件页数： | 23/24页 |
| 文件大小： | 280K |
| 代理商： | LTC1402CGN#PBF |
8
LTC1402
GAIN (Pin 7): Tie to AGND2 to set the reference voltage to
4.096V or tie to VREF to set the reference voltage to 2.048V.
(Note 4)
BIP/UNI (Pin 8): Tie to logic low to set the input range to
unipolar mode or tie to logic high to set the input range to
bipolar mode. (Note 4)
OGND (Pin 9): Output Ground for the Output Driver. This
pin can be tied to the digital ground of the system. All other
ground pins should be tied to the analog ground plane.
DOUT (Pin 10): Three-State Data Output. (Note 3) Each
output data word represents the analog input at the start
of the previous conversion.
OVDD (Pin 11): Output Data Driver Power. Tie to VDD when
driving 5V logic. Tie to 3V when driving 3V logic.
DVDD (Pin 12): Digital Power for Internal Logic. Bypass to
DGND with 10
Fceramic(or10Ftantaluminparallelwith
0.1
F ceramic).
PIN FUNCTIONS
UU
U
DGND (Pin 13): Digital Ground for Internal Logic. Tie to
solid analog ground plane.
VSS (Pin 14): Negative Supply Voltage. Bypass to solid
analog ground plane with 10
F ceramic (or 10F tantalum
in parallel with 0.1
F ceramic) or tie directly to the solid
analog ground plane for single supply use. Must be set
more negative than either AIN+ or AIN – . Set to 0V or – 5V.
SCK (Pin 15): External Clock. Advances the conversion
process and sequences the output data at DOUT on the
rising edge. Responds to 5V or 3V CMOS and to TTL levels.
(Note 4). One or more pulses wake from Nap or Sleep.
CONV (Pin 16): Holds the input analog signal and starts
the conversion on the rising edge. Responds to 5V or 3V
CMOS and to TTL levels. (Note 4). Two pulses with SCK in
fixed high or fixed low state start Nap Mode. Four pulses
with SCK in fixed high or fixed low state start Sleep mode.
BLOCK DIAGRA
W
12-BIT CAPACITIVE DAC
COMP
REF AMP
+
–
2.048V REF
64k
GAIN
CSAMPLE
CONTROL LOGIC
SCK
CONV
16
15
INTERNAL
CLOCK
OUTPUT
DRIVER
ZEROING SWITCHES
AVDD
1
12
DVDD
14
8
10
11
9
VSS
BIP/UNI
OVDD
DOUT
OGND
AIN
+
3
4
7
5
6
2
13
AIN
–
AGND1
AGND2
VREF
DGND
1402 BD
+
–
SUCCESSIVE APPROXIMATION
REGISTER
64k
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| LTC1402IGN | 功能描述:IC ADC 12BIT 2.2MSPS SHDN 16SSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| LTC1402IGN#PBF | 功能描述:IC ADC 12BIT 2.2MSPS SHDN 16SSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| LTC1402IGN#TR | 功能描述:IC ADC 12BIT 2.2MSPS SHDN 16SSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| LTC1402IGN#TRPBF | 功能描述:IC ADC 12BIT 2.2MSPS SHDN 16SSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
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