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2645L8 View Datasheet(PDF) - Linear Technology

Part Name
Description
MFG CO.
'2645L8' PDF : 20 Pages View PDF
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LTC2645
Electrical Characteristics 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.
LTC2645-L12/-L10/-L8 (VFS = 2.5V)
LTC2645-L8
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
DC Performance
Resolution
l8
Monotonicity
VCC = 3V, Internal Ref. (Note 3) l 8
DNL Differential
VCC = 3V, Internal Ref. (Note 3) l
±0.5
Nonlinearity
INL
ZSE
VOS
VOSTC
Integral Nonlinearity VCC = 3V, Internal Ref. (Note 3) l
Zero-Scale Error VCC = 3V, Internal Ref., Code = 0 l
Offset Error
VCC = 3V, Internal Ref. (Note 4) l
VOS Temperature
Coefficient
VCC = 3V, Internal Ref. (Note 9)
±0.05 ±0.5
0.5 5
±0.5 ±5
±10
GE
Gain Error
VCC = 3V, Internal Ref.
l
GETC Gain Temperature VCC = 3V, Internal Ref. (Note 9)
Coefficient
C-grade
I-grade
H-grade
±0.2 ±0.8
10
10
10
Load Regulation
ROUT DC Output
Impedance
Internal Ref., Mid-Scale,
VCC = 3V ±10%,
–5mA ≤ IOUT ≤ 5mA
VCC = 5V ±10%,
–10mA ≤ IOUT ≤ 10mA
Internal Ref., Mid-Scale,
VCC = 3V ±10%,
–5mA ≤ IOUT ≤ 5mA
VCC = 5V ±10%,
–10mA ≤ IOUT ≤ 10mA
l
0.009 0.016
l
0.009 0.016
l
0.09 0.156
l
0.09 0.156
LTC2645-L10
MIN TYP MAX
10
10
±0.5
±0.2 ±1
0.5 5
±0.5 ±5
±10
±0.2 ±0.8
10
10
10
0.035
0.064
0.035 0.064
0.09 0.156
0.09 0.156
LTC2645-L12
MIN TYP MAX
12
12
±1
±1 ±2.5
0.5 5
±0.5 ±5
±10
±0.2 ±0.8
10
10
10
0.14 0.256
0.14 0.256
0.09 0.156
0.09 0.156
UNITS
Bits
Bits
LSB
LSB
mV
mV
µV/°C
%FSR
ppm/°C
ppm/°C
ppm/°C
LSB/mA
LSB/mA
Ω
Ω
SYMBOL PARAMETER
VOUT
DAC Output Span
PSR
Power Supply Rejection
ISC
Short Circuit Output Current (Note 5)
Sinking
Sourcing
Power Supply
VCC
IOVCC
ICC
Positive Supply Voltage
Digital Input Supply Voltage
Supply Current (Note 6)
ICC(IOVCC) Supply Current, IOVCC (Note 6)
ISD
Supply Current in Power-Down Mode (Note 6)
ISD(IOVCC) Supply Current in Power-Down Mode, IOVCC
(Note 6)
CONDITIONS
External Reference
Internal Reference
VCC = 3V ±10% or 5V ±10%
VFS = VCC = 5.5V
Zero-Scale; VOUT Shorted to VCC
Full-Scale; VOUT Shorted to GND
For Specified Performance
For Specified Performance
VCC = 3V, Internal Reference
VCC = 5V, Internal Reference
IOVCC = 5V
VCC = 5V, PD = 0V
IOVCC = 5V, PD = 0V
MIN
TYP MAX
0 to VREF
0 to 2.5
–80
l
27
48
l
–28
–48
UNITS
V
V
dB
mA
mA
l 2.7
5.5
V
l 1.71
5.5
l
4
5
mA
l
6.4
8
mA
l
25
50
µA
l
0.5
5
µA
l
0.5
5
µA
2645f
4
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