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LTC2640AITS8-LZ8 Datasheet(PDF) 5 Page - Linear Technology

Part # LTC2640AITS8-LZ8
Description  Single 12-/10-/8-Bit SPI VOUT DACs with 10ppm/째C Reference
Download  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2640AITS8-LZ8 Datasheet(HTML) 5 Page - Linear Technology

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background image
LTC2640
5
2640fb
ELECTRICAL CHARACTERISTICS
LTC2640-8
LTC2640-10
LTC2640-12
LTC2640A-12
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX MIN TYP MAX MIN TYP
MAX MIN TYP
MAX
UNITS
DC Performance
Resolution
l
8
10
12
12
Bits
Monotonicity
VCC = 3V, Internal Ref. (Note 4) l
8
10
12
12
Bits
DNL
Differential
Nonlinearity
VCC = 3V, Internal Ref. (Note 4) l
±0.5
±0.5
±1
±1
LSB
INL
Integral
Nonlinearity
VCC = 3V, Internal Ref. (Note 4) l
±0.05
±0.5
±0.2
±1
±1
±2.5
±0.5
±1
LSB
ZSE
Zero-Scale Error
VCC = 3V, Internal Ref.,
Code = 0
l
0.5
5
0.5
5
0.5
5
0.5
5
mV
VOS
Offset Error
VCC = 3V, Internal Ref. (Note 5) l
±0.5
±5
±0.5
±5
±0.5
±5
±0.5
±5
mV
VOSTC
VOS Temperature
Coefficient
VCC = 3V, Internal Ref. (Note 5)
±10
±10
±10
±10
μV/°C
FSE
Full-Scale Error
VCC = 3V, Internal Ref. (Note 11) l
±0.08
±0.4
±0.08 ±0.4
±0.08 ±0.4
±0.08 ±0.4
%FSR
VFSTC
Full-Scale Voltage
Temperature
Coefficient
VCC = 3V, Internal Ref. (Note 10)
C-Grade
I-Grade
H-Grade
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
ppm/°C
ppm/°C
ppm/°C
Load Regulation
Internal Ref., Mid-Scale,
VCC = 3V ±10%,
–5mA ≤ IOUT ≤ 5mA,
VCC = 5V ±10%,
–10mA ≤ IOUT ≤ 10mA
l
l
0.009
0.009
0.016
0.016
0.035
0.035
0.064
0.064
0.14
0.14
0.256
0.256
0.14
0.14
0.256
0.256
LSB/mA
LSB/mA
ROUT
DC Output
Impedance
Internal Ref., Mid-Scale,
VCC = 3V ±10%,
–5mA ≤ IOUT ≤ 5mA,
VCC = 5V ±10%,
–10mA ≤ IOUT ≤ 10mA
l
l
0.09
0.09
0.156
0.156
0.09
0.09
0.156
0.156
0.09
0.09
0.156
0.156
0.09
0.09
0.156
0.156
Ω
Ω
The
l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 2.7V to 5.5V, VOUT unloaded unless otherwise specified.
LTC2640-LM12/-LM10/-LM8/-LZ12/-LZ10/-LZ8, LTC2640A-LM12/-LZ12 (VFS = 2.5V)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VOUT
DAC Output Span
External Reference
Internal Reference
0 to VREF
0 to 2.5
V
V
PSR
Power Supply Rejection
VCC = 3V ±10% or 5V ±10%
–80
dB
ISC
Short-Circuit Output Current (Note 6)
Sinking
Sourcing
VFS = VCC = 5.5V
Zero-Scale; VOUT shorted to VCC
Full-Scale; VOUT shorted to GND
l
l
27
–28
48
–48
mA
mA
Power Supply
VCC
Positive Supply Voltage
For Specified Performance
l
2.7
5.5
V
ICC
Supply Current (Note 7)
VCC = 3V, VREF = 2.5V, External Reference
VCC = 3V, Internal Reference
VCC = 5V, VREF = 2.5V, External Reference
VCC = 5V, Internal Reference
l
l
l
l
150
180
160
190
200
240
210
260
μA
μA
μA
μA
ISD
Supply Current in Power-Down Mode
(Note 7)
VCC = 5V, C-Grade, I-Grade
VCC = 5V, H-Grade
l
l
0.6
0.6
1.8
4
μA
μA


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