Datasheet

LTC2757
3
2757f
ELECTRICAL CHARACTERISTICS
V
DD
= 5V, V(R
IN
) = 5V unless otherwise specifi ed. The l denotes the
specifi cations which apply over the full operating temperature range, otherwise specifi cations are at T
A
= 25°C.
SYMBOL PARAMETER CONDITIONS
LTC2757B LTC2757A
UNITSMIN TYP MAX MIN TYP MAX
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 GE
ADJ
: 0V, All Output Ranges
l
±48 ±5 ±32 LSB
GE
TC
Gain Error Temperature Coeffi cient (Note 3) ±0.25 ±0.25 ppm/°C
BZE Bipolar Zero Error All Bipolar Ranges
l
±36 ±3 ±24 LSB
BZS
TC
Bipolar Zero Temperature Coeffi cient (Note 3) ±0.15 ±0.15 ppm/°C
PSR Power Supply Rejection V
DD
= 5V, ±10%
V
DD
= 3V, ±10%
l
l
±1.6
±4
±0.15
±0.4
±0.8
±2
LSB/V
I
LKG
I
OUT1
Leakage Current T
A
= 25°C
T
MIN
to T
MAX
l
±0.05 ±2
±5
±0.05 ±2
±5
nA
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Analog Pins
R1, R2 Reference Inverting Resistors (Note 4)
l
16 20
kΩ
R
REF
DAC Input Resistance (Note 5)
l
810
kΩ
R
FB
Feedback Resistor (Note 6)
l
810
kΩ
R
OFS
Bipolar Offset Resistor (Note 6)
l
16 20
kΩ
R
VOSADJ
Offset Adjust Resistor
l
1024 1280
kΩ
R
GEADJ
Gain Adjust Resistor
l
2048 2560
kΩ
C
IOUT1
Output Capacitance Full-Scale
Zero-Scale
90
40
pF
pF
Dynamic Performance
Output Settling Time Span Code = 000, 10V Step (Note 7)
To ±0.0004% FS
2.1 s
Glitch Impulse V
DD
= 5V (Note 8)
V
DD
= 3V (Note 8)
3
1.4
nVs
nVs
Digital-to-Analog Glitch Impulse V
DD
= 5V (Note 9)
V
DD
= 3V (Note 9)
4
1.8
nVs
nVs
Reference Multiplying Bandwidth 0V to 5V Range, Code = Full-Scale, –3dB Bandwidth 1 MHz
Multiplying Feedthrough Error 0V to 5V Range, V
REF
= ±10V, 10kHz Sine Wave 0.4 mV
THD Total Harmonic Distortion (Note 10) Multiplying –110 dB
Output Noise Voltage Density (Note 11) at I
OUT1
13 nV/√Hz
V
DD
= 5V, V(R
IN
) = 5V unless otherwise specifi ed. The l denotes specifi cations that apply over the full operating temperature range,
otherwise specifi cations are at T
A
= 25°C.