参数资料
型号: LTC1666IG
厂商: Linear Technology
文件页数: 1/24页
文件大小: 0K
描述: IC D/A CONV 12BIT 50MSPS 28-SSOP
标准包装: 47
设置时间: 20ns
位数: 12
数据接口: 并联
转换器数目: 1
电压电源: 双 ±
功率耗散(最大): 180mW
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-SSOP(0.209",5.30mm 宽)
供应商设备封装: 28-SSOP
包装: 管件
输出数目和类型: 2 电流,单极
采样率(每秒): 50M
1
LTC1666/LTC1667/LTC1668
APPLICATIO S
U
FEATURES
DESCRIPTIO
U
TYPICAL APPLICATION
U
12-Bit, 14-Bit, 16-Bit,
50Msps DACs
s
50Msps Update Rate
s
Pin Compatible 12-Bit, 14-Bit and 16-Bit Devices
s
High Spectral Purity: 87dB SFDR at 1MHz fOUT
s
5pV-s Glitch Impulse
s
Differential Current Outputs
s
20ns Settling Time
s
Low Power: 180mW from
±5V Supplies
s
TTL/CMOS (3.3V or 5V) Inputs
s
Small Package: 28-Pin SSOP
The LTC
1666/LTC1667/LTC1668 are 12-/14-/16-bit,
50Msps differential current output DACs implemented on
a high performance BiCMOS process with laser trimmed,
thin-film resistors. The combination of a novel current-
steering architecture and a high performance process
produces DACs with exceptional AC and DC performance.
The LTC1668 is the first 16-bit DAC in the marketplace to
exhibit an SFDR (spurious free dynamic range) of 87dB
for an output signal frequency of 1MHz.
Operating from
±5V supplies, the LTC1666/LTC1667/
LTC1668 can be configured to provide full-scale output
currents up to 10mA. The differential current outputs of
the DACs allow single-ended or true differential operation.
The – 1V to 1V output compliance of the LTC1666/
LTC1667/LTC1668 allows the outputs to be connected
directly to external resistors to produce a differential out-
put voltage without degrading the converter’s linearity. Al-
ternatively, the outputs can be connected to the summing
junction of a high speed operational amplifier, or to a
transformer.
The LTC1666/LTC1667/LTC1668 are pin compatible and
are available in a 28-pin SSOP and are fully specified over
the industrial temperature range.
, LTC and LT are registered trademarks of Linear Technology Corporation.
s
Cellular Base Stations
s
Multicarrier Base Stations
s
Wireless Communication
s
Direct Digital Synthesis (DDS)
s
xDSL Modems
s
Arbitrary Waveform Generation
s
Automated Test Equipment
s
Instrumentation
LTC1668, 16-Bit, 50Msps DAC
+
VSS
VDD
–5V
CLOCK
INPUT
16-BIT DATA
INPUT
LADCOM
AGND DGND
CLK
DB15
DB0
1666/7/8 TA01
IOUT A
0.1
F
LTC1668
5V
52.3
IREFIN
REFOUT
COMP1
COMP2
C2
0.1
F
0.1
F
C1
0.1
F
RSET
2k
IOUT B
52.3
VOUT
1VP-P
DIFFERENTIAL
+
0.1
F
16-BIT
HIGH SPEED
DAC
2.5V
REFERENCE
LTC1668 SFDR vs fOUT and fCLOCK
fOUT (MHz)
0.1
SFDR
(dB)
100
90
80
70
60
50
1.0
10
100
1666/7/8 G05
5MSPS
25MSPS
50MSPS
DIGITAL AMPLITUDE = 0dBFS
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相关代理商/技术参数
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LTC1666IG#PBF 功能描述:IC D/A CONV 12BIT 50MSPS 28-SSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:47 系列:- 设置时间:2µs 位数:14 数据接口:并联 转换器数目:1 电压电源:单电源 功率耗散(最大):55µW 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:28-SSOP(0.209",5.30mm 宽) 供应商设备封装:28-SSOP 包装:管件 输出数目和类型:1 电流,单极;1 电流,双极 采样率(每秒):*
LTC1666IG#TR 功能描述:IC D/A CONV 12BIT 50MSPS 28-SSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:47 系列:- 设置时间:2µs 位数:14 数据接口:并联 转换器数目:1 电压电源:单电源 功率耗散(最大):55µW 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:28-SSOP(0.209",5.30mm 宽) 供应商设备封装:28-SSOP 包装:管件 输出数目和类型:1 电流,单极;1 电流,双极 采样率(每秒):*
LTC1666IG#TRPBF 功能描述:IC D/A CONV 12BIT 50MSPS 28-SSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:47 系列:- 设置时间:2µs 位数:14 数据接口:并联 转换器数目:1 电压电源:单电源 功率耗散(最大):55µW 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:28-SSOP(0.209",5.30mm 宽) 供应商设备封装:28-SSOP 包装:管件 输出数目和类型:1 电流,单极;1 电流,双极 采样率(每秒):*
LTC1667CG 功能描述:IC D/A CONV 14BIT 50MSPS 28-SSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Data Converter Fundamentals DAC Architectures 标准包装:750 系列:- 设置时间:7µs 位数:16 数据接口:并联 转换器数目:1 电压电源:双 ± 功率耗散(最大):100mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-LCC(J 形引线) 供应商设备封装:28-PLCC(11.51x11.51) 包装:带卷 (TR) 输出数目和类型:1 电压,单极;1 电压,双极 采样率(每秒):143k
LTC1667CG#PBF 功能描述:IC D/A CONV 14BIT 50MSPS 28-SSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Data Converter Fundamentals DAC Architectures 标准包装:750 系列:- 设置时间:7µs 位数:16 数据接口:并联 转换器数目:1 电压电源:双 ± 功率耗散(最大):100mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-LCC(J 形引线) 供应商设备封装:28-PLCC(11.51x11.51) 包装:带卷 (TR) 输出数目和类型:1 电压,单极;1 电压,双极 采样率(每秒):143k