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參數資料
| 型號： | LTCZS |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 16-/14-/12-Bit VOUT DACs in 3mm 】 3mm DFN |
| 中文描述： | 16/14/12 VOUT電源數模轉換器采用3mm DFN封裝】3毫米 |
| 文件頁數： | 4/20頁 |
| 文件大小： | 317K |
| 代理商： | LTCZS |
LTC2641/LTC2642
4
26412f
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25°C. V
DD
= 3V or 5V, V
REF
= 2.5V, C
L
= 10pF, GND = 0, R
L
= ∞
unless
otherwise specified.
LTC2641-12
LTC2642-12
MIN
Static Peformance
N
Resolution
●
12
Monotonicity
●
12
DNL
Differential Nonlinearity
(Note 2)
●
INL
Integral Nonlinearity
(Note 2)
●
ZSE
Zero Code Offset Error
Code = 0
●
ZS
TC
Zero Code Tempco
GE
Gain Error
●
GE
TC
Gain Error Tempco
R
OUT
DAC Output Resistance
(Note 4)
Bipolar Resistor Matching
(LTC2642) R
FB
/R
INV
Ratio Error (Note 7)
●
BZE
Bipolar Zero Offset Error
(LTC2642)
●
BZS
TC
Bipolar Zero Tempco
(LTC2642)
PSR
Power Supply Rejection
Δ
V
DD
= ±10%
●
SYMBOL
Reference Input
V
REF
R
REF
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Reference Input Range
Reference Input Resistance (Note 5)
●
2.0
11
8.5
V
DD
V
Unipolar Mode (LTC2641)
Bipolar Mode (LTC2642)
●
●
14.8
11.4
k
Ω
k
Ω
Dynamic Performance—V
OUT
SR
Voltage Output Slew Rate
Output Settling Time
DAC Glitch Impulse
Digital Feedthrough
Measured from 10% to 90%
To ±0.5LSB of FS
Major Carry Transition
Code = 0000hex; NCS = V
DD
;
SCLK, DIN 0V to V
DD
Levels
15
1
0.5
0.2
V/μs
μs
nVs
nVs
Dynamic Performance—Reference Input
BW
Reference –3dB Bandwidth
Reference Feedthrough
Signal-to-Noise Ratio
Reference Input Capacitance
Code = FFFFhex
Code = 0000hex, V
REF
= 1V
P-P
at 100kHz
1.3
1
92
75
120
MHz
mV
P-P
SNR
C
IN(REF)
dB
pF
pF
Code = 0000hex
Code = FFFFhex
Digital Inputs
V
IH
Digital Input High Voltage
V
CC
= 3.6V to 5.5V
V
CC
= 2.7V to 3.6V
V
CC
= 4.5V to 5.5V
V
CC
= 2.7V to 4.5V
●
●
2.4
2.0
V
V
V
V
V
IL
Digital Input Low Voltage
●
●
0.8
0.6
The
●
denotes the specifications which apply over the full operating
SYMBOL PARAMETER
CONDITIONS
LTC2641-14
LTC2642-14
TYP
LTC2641-16
LTC2642-16
TYP
UNITS
TYP
MAX
MIN
MAX
MIN
MAX
14
14
16
16
Bits
Bits
LSB
LSB
LSB
±0.5
±0.5
1
±0.5
±0.5
±1
±1
2
±0.5
±0.5
±1
±2
2
±0.05
±0.5
±0.1
6.2
1
±0.05
±1
±0.1
6.2
1
±0.05
±2
±0.1
6.2
1
ppm/°C
LSB
ppm/°C
±2
±4
±5
k
Ω
±0.1
±2
±0.03
±4
±0.015
±5
%
±0.5
±0.1
±0.5
±0.1
±2
±0.1
LSB
ppm/°C
LSB
±0.5
±0.5
±1
The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
V
DD
= 3V or 5V, V
REF
= 2.5V, C
L
= 10pF, GND = 0, R
L
= ∞
unless otherwise specified.
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