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| LTC2757 Datasheet, PDF (3/20 Pages) Linear Technology – 18-Bit SoftSpan IOUT DAC with Parallel I/O | |||
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LTC2757
ELECTRICAL CHARACTERISTICS VDD = 5V, V(RIN) = 5V unless otherwise speciï¬ed. The l denotes the
speciï¬cations which apply over the full operating temperature range, otherwise speciï¬cations are at TA = 25°C.
LTC2757B
LTC2757A
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX MIN TYP MAX UNITS
Static Performance
Resolution
l 18
18
Bits
Monotonicity
l 18
18
Bits
DNL
Differential Nonlinearity
l
±1
±0.4 ±1
LSB
INL
Integral Nonlinearity
l
±2
±0.4 ±1
LSB
GE
Gain Error
GEADJ: 0V, All Output Ranges
l
GETC
Gain Error Temperature Coefï¬cient (Note 3)
BZE
Bipolar Zero Error
All Bipolar Ranges
l
±48
±0.25
±36
±5 ±32
LSB
±0.25
ppm/°C
±3 ±24
LSB
BZSTC
PSR
ILKG
Bipolar Zero Temperature Coefï¬cient
Power Supply Rejection
IOUT1 Leakage Current
(Note 3)
VDD = 5V, ±10%
VDD = 3V, ±10%
TA = 25°C
TMIN to TMAX
±0.15
±0.15
ppm/°C
l
±1.6
±0.15 ±0.8 LSB/V
l
±4
±0.4 ±2
±0.05 ±2
l
±5
±0.05 ±2
nA
±5
VDD = 5V, V(RIN) = 5V unless otherwise speciï¬ed. The l denotes speciï¬cations that apply over the full operating temperature range,
otherwise speciï¬cations are at TA = 25°C.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
UNITS
Analog Pins
R1, R2 Reference Inverting Resistors
(Note 4)
l 16
20
kΩ
RREF
RFB
ROFS
RVOSADJ
RGEADJ
CIOUT1
DAC Input Resistance
Feedback Resistor
Bipolar Offset Resistor
Offset Adjust Resistor
Gain Adjust Resistor
Output Capacitance
(Note 5)
(Note 6)
(Note 6)
Full-Scale
Zero-Scale
l
8
10
kΩ
l
8
10
kΩ
l 16
20
kΩ
l 1024 1280
kΩ
l 2048 2560
kΩ
90
pF
40
pF
Dynamic Performance
Output Settling Time
Span Code = 000, 10V Step (Note 7)
To ±0.0004% FS
2.1
μs
Glitch Impulse
Digital-to-Analog Glitch Impulse
Reference Multiplying Bandwidth
VDD = 5V (Note 8)
VDD = 3V (Note 8)
VDD = 5V (Note 9)
VDD = 3V (Note 9)
0V to 5V Range, Code = Full-Scale, â3dB Bandwidth
3
nV ⢠s
1.4
nV ⢠s
4
nV ⢠s
1.8
nV ⢠s
1
MHz
Multiplying Feedthrough Error
0V to 5V Range, VREF = ±10V, 10kHz Sine Wave
0.4
mV
THD
Total Harmonic Distortion
Output Noise Voltage Density
(Note 10) Multiplying
(Note 11) at IOUT1
â110
dB
13
nV/âHz
2757f
3
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