
LTC2630
4
2630ff
electrical characteristics
SYMBOL PARAMETER
CONDITIONS
LTC2630-8
LTC2630-10
LTC2630-12
LTC2630A-12
UNITS
MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX
DC Performance
Resolution
l
8
10
12
Bits
Monotonicity
VCC = 3V, Internal Ref. (Note 4)
l
8
10
12
Bits
DNL
Differential Nonlinearity VCC = 3V, Internal Ref. (Note 4)
l
±0.5
±1
LSB
INL
Integral Nonlinearity
VCC = 3V, Internal Ref. (Note 4)
l
±0.05 ±0.5
±0.2 ±1
±1
±2
±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
mV
VOSTC VOS Temperature
Coefficient
VCC = 3V, Internal Ref. (Note 5)
±10
V/°C
FSE
Full Scale Error
VCC = 3V, Internal Ref.
l
±0.2 ±0.8
%FSR
VFSTC
Full Scale Voltage
Temperature
Coefficient
VCC = 3V, Internal Ref. (Note 10)
C-Grade
I-Grade
H-Grade
±10
ppm/°C
Load Regulation
Internal Ref., Mid-Scale,
VCC = 3V ±10%, –5mA ≤ IOUT ≤ 5mA
VCC = 5V ±10%, –10mA ≤ IOUT ≤ 10mA
l
0.008
0.016
0.03
0.064
0.13
0.256
0.13
0.256
LSB/mA
ROUT
DC Output Impedance Internal Ref., Mid-Scale,
VCC = 3V ±10%, –5mA ≤ IOUT ≤ 5mA
VCC = 5V ±10%, –10mA ≤ IOUT ≤ 10mA
l
0.08
0.156
0.08
0.156
0.08
0.156
0.08
0.156
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.
LTC2630-LM12/-LM10/-LM8/-LZ12/-LZ10/-LZ8, LTC2630A-LM12/-LZ12 (VFS = 2.5V)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VOUT
DAC Output Span
Supply as Reference
Internal Reference
0V to VCC
0V to 2.5
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
27
–28
50
–50
mA
Power Supply
VCC
Power Supply Voltage
For Specified Performance
l
2.7
5.5
V
ICC
Supply Current (Note 7)
VCC = 3V, Supply as Reference
VCC = 3V, Internal Reference
VCC = 5V, Supply as Reference
VCC = 5V, Internal Reference
l
160
180
190
220
240
250
260
A
ISD
Supply Current in Power-Down Mode
(Note 7)
VCC = 5V, C-Grade, I-Grade
VCC = 5V, H-Grade
l
0.36
1.8
5
A
Digital I/O
VIH
Digital Input High Voltage
VCC = 3.6V to 5.5V
VCC = 2.7V to 3.6V
l
2.4
2.0
V
VIL
Digital Input Low Voltage
VCC = 4.5V to 5.5V
VCC = 2.7V to 4.5V
l
0.8
0.6
V
ILK
Digital Input Leakage
VIN = GND to VCC
l
±1
A
CIN
Digital Input Capacitance
(Note 8)
l
2.5
pF