参数资料
型号: LTC2298CUP#TRPBF
厂商: Linear Technology
文件页数: 1/28页
文件大小: 0K
描述: IC ADC DUAL 14BIT 65MSPS 64QFN
标准包装: 2,000
位数: 14
采样率(每秒): 65M
数据接口: 并联
转换器数目: 2
功率耗散(最大): 450mW
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: 64-WFQFN 裸露焊盘
供应商设备封装: 64-QFN(9x9)
包装: 带卷 (TR)
输入数目和类型: 2 个单端,双极; 2 个差分, 双极
LTC2298/LTC2297/LTC2296
1
229876fa
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
Integrated Dual 14-Bit ADCs
Sample Rate: 65Msps/40Msps/25Msps
Single 3V Supply (2.7V to 3.4V)
Low Power: 400mW/235mW/150mW
74.3dB SNR
90dB SFDR
110dB Channel Isolation at 100MHz
Multiplexed or Separate Data Bus
Flexible Input: 1VP-P to 2VP-P Range
575MHz Full Power Bandwidth S/H
Clock Duty Cycle Stabilizer
Shutdown and Nap Modes
Pin Compatible Family
105Msps: LTC2282 (12-Bit), LTC2284 (14-Bit)
80Msps: LTC2294 (12-Bit), LTC2299 (14-Bit)
65Msps: LTC2293 (12-Bit), LTC2298 (14-Bit)
40Msps: LTC2292 (12-Bit), LTC2297 (14-Bit)
25Msps: LTC2291 (12-Bit), LTC2296 (14-Bit)
10Msps: LTC2290 (12-Bit), LTC2295 (14-Bit)
64-Pin (9mm
× 9mm) QFN Package
Dual 14-Bit, 65/40/25Msps
Low Power 3V ADCs
The LTC
2298/LTC2297/LTC2296 are 14-bit 65Msps/
40Msps/25Msps, low power dual 3V A/D converters de-
signed for digitizing high frequency, wide dynamic range
signals. The LTC2298/LTC2297/LTC2296 are perfect for
demanding imaging and communications applications
with AC performance that includes 74.3dB SNR and 90dB
SFDR for signals at the Nyquist frequency.
DC specs include
±1.2LSB INL (typ), ±0.5LSB DNL (typ)
and no missing codes over temperature. The transition
noise is a low 1LSBRMS.
A single 3V supply allows low power operation. A separate
output supply allows the outputs to drive 0.5V to 3.6V
logic. An optional multiplexer allows both channels to
share a digital output bus.
A single-ended CLK input controls converter operation. An
optional clock duty cycle stabilizer allows high perfor-
mance at full speed for a wide range of clock duty cycles.
LTC2298: SNR vs Input Frequency,
–1dB, 2V Range, 65Msps
+
INPUT
S/H
ANALOG
INPUT A
ANALOG
INPUT B
CLK A
CLK B
14-BIT
PIPELINED
ADC CORE
CLOCK/DUTY CYCLE
CONTROL
OUTPUT
DRIVERS
OVDD
OGND
MUX
D13A
D0A
OVDD
OGND
229876 TA01
D13B
D0B
+
OUTPUT
DRIVERS
INPUT
S/H
14-BIT
PIPELINED
ADC CORE
CLOCK/DUTY CYCLE
CONTROL
INPUT FREQUENCY (MHz)
0
SNR
(dBFS)
200
229876 TA01b
50
100
150
75
74
73
72
71
70
Wireless and Wired Broadband Communication
Imaging Systems
Spectral Analysis
Portable Instrumentation
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
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