参数资料
型号: LTC1667IG#TRPBF
厂商: Linear Technology
文件页数: 19/24页
文件大小: 0K
描述: IC D/A CONV 14BIT 50MSPS 28-SSOP
标准包装: 2,000
设置时间: 20ns
位数: 14
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: 带卷 (TR)
输出数目和类型: 2 电流,单极
采样率(每秒): 50M
4
LTC1666/LTC1667/LTC1668
The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VDD = 5V, VSS = – 5V, LADCOM = AGND = DGND = 0V, IOUTFS = 10mA.
ELECTRICAL CHARACTERISTICS
LTC1666/LTC1667/LTC1668
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Analog Output
IOUTFS
Full-Scale Output Current
q
110
mA
Output Compliance Range
IFS = 10mA
q
–1
1
V
Output Resistance; RIOUT A, RIOUT B
IOUT A, B to LADCOM
q
0.7
1.1
1.5
k
Output Capacitance
5pF
Reference Output
Reference Voltage
REFOUT Tied to IREFIN Through 2k
2.475
2.5
2.525
V
Reference Output Drift
25
ppm/
°C
Reference Output Load Regulation
ILOAD = 0mA to 5mA
6
mV/mA
Reference Input
Reference Small-Signal Bandwidth
IFS = 10mA, CCOMP1 = 0.1F
20
kHz
Power Supply
VDD
Positive Supply Voltage
q
4.75
5
5.25
V
VSS
Negative Supply Voltage
q
–4.75
–5
–5.25
V
IDD
Positive Supply Current
IFS = 10mA, fCLK = 25Msps, fOUT = 1MHz
q
35
mA
ISS
Negative Supply Current
IFS = 10mA, fCLK = 25Msps, fOUT = 1MHz
q
33
40
mA
PDIS
Power Dissipation
IFS = 10mA, fCLK = 25Msps, fOUT = 1MHz
180
mW
IFS = 1mA, fCLK = 25Msps, fOUT = 1MHz
85
mW
Dynamic Performance (Differential Transformer Coupled Output, 50
Double Terminated, Unless Otherwise Noted)
fCLOCK
Maximum Update Rate
q
50
75
Msps
tS
Output Settling Time
To 0.1% FSR
20
ns
tPD
Output Propagation Delay
8ns
Glitch Impulse
Single Ended
15
pV-s
Differential
5
pV-s
tr
Output Rise Time
4ns
tf
Output Fall Time
4ns
iNO
Output Noise
50
pA/
√Hz
Digital Inputs
VIH
Digital High Input Voltage
q
2.4
V
VIL
Digital Low Input Voltage
q
0.8
V
IIN
Digital Input Current
q
±10
A
CIN
Digital Input Capacitance
5pF
tDS
Input Setup Time
q
8ns
tDH
Input Hold Time
q
4ns
tCLKH
Clock High Time
q
5ns
tCLKL
Clock Low Time
q
8ns
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: For the LTC1666,
±1LSB = ±0.024% of full scale;
for the LTC1667,
±1LSB = ±0.006% of full scale = ±61ppm of full scale;
for the LTC1668,
±1LSB = ±0.0015% of full scale = ±15.3ppm of full scale.
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