参数资料
型号: LTC2255CUH#TRPBF
厂商: Linear Technology
文件页数: 12/24页
文件大小: 0K
描述: IC ADC 14BIT 125MSPS 3V 32-QFN
产品培训模块: LTC2262 - Ultra Low Power High Speed ADCs
标准包装: 2,500
位数: 14
采样率(每秒): 125M
数据接口: 并联
转换器数目: 1
功率耗散(最大): 468mW
电压电源: 单电源
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 32-WFQFN 裸露焊盘
供应商设备封装: 32-QFN 裸露焊盘(5x5)
包装: 带卷 (TR)
输入数目和类型: 1 个单端,双极; 1 个差分,双极
LTC2255/LTC2254
2
22554fa
ABSOLUTE
AXI U
RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UU
W
OVDD = VDD (Notes 1, 2)
Supply Voltage (VDD) ................................................. 4V
Digital Output Ground Voltage (OGND) ....... –0.3V to 1V
Analog Input Voltage (Note 3) ..... –0.3V to (VDD + 0.3V)
Digital Input Voltage .................... –0.3V to (VDD + 0.3V)
Digital Output Voltage ................ –0.3V to (OVDD + 0.3V)
Power Dissipation ............................................ 1500mW
Operating Temperature Range
LTC2255C, LTC2254C ............................. 0
°C to 70°C
LTC2255I, LTC2254I ...........................–40
°C to 85°C
Storage Temperature Range ..................–65
°C to 125°C
ORDER PART
NUMBER
QFN PART*
MARKING
TJMAX = 125°C, θJA = 34°C/W
EXPOSED PAD (PIN 33) IS GND
MUST BE SOLDERED TO PCB
2255
2254
LTC2255CUH
LTC2255IUH
LTC2254CUH
LTC2254IUH
Consult LTC Marketing for parts specified with wider operating temperature ranges.
*The temperature grade is identified by a label on the shipping container.
32 31 30 29 28 27 26 25
9
10 11 12
TOP VIEW
UH PACKAGE
32-LEAD (5mm
× 5mm) PLASTIC QFN
13 14 15 16
17
18
19
20
21
22
23
24
8
7
6
5
4
3
2
1
AIN+
AIN
REFH
REFL
VDD
GND
D10
D9
D8
OVDD
OGND
D7
D6
D5
V
DD
V
CM
SENSE
MODE
OF
D13
D12
D11
CLK
SHDN
OE
D0
D1
D2
D3
D4
33
The
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 4)
LTC2255
LTC2254
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
Resolution (No Missing Codes)
14
Bits
Integral Linearity Error
Differential Analog Input (Note 5)
–5
±1
5
–5.5
±1
5.5
LSB
Differential Linearity Error
Differential Analog Input
–1
±0.5
1
–1
±0.5
1
LSB
Offset Error
(Note 6)
–12
±212
–12
±212
mV
Gain Error
External Reference
–2.5
±0.5
2.5
–2.5
±0.5
2.5
%FS
Offset Drift
±10
V/°C
Full-Scale Drift
Internal Reference
±30
ppm/
°C
External Reference
±5
ppm/
°C
Transition Noise
SENSE = 1V
1.3
LSBRMS
CO VERTER CHARACTERISTICS
U
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF
Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
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