Datasheet

LTC2654
6
2654f
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
CC
= 2.7V to 5.5V, V
OUT
unloaded unless otherwise specifi ed.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OUT
DAC Output Span Internal Reference
External Reference = V
EXTREF
0 to 4.096
0 to 2•V
EXTREF
V
V
PSR Power Supply Rejection V
CC
±10% –80 dB
R
OUT
DC Output Impedance V
CC
= 5V ±10%, Internal Reference, Mid-Scale,
–15mA ≤ I
OUT
≤ 15mA
l
0.04 0.15 Ω
LTC2654B-H16/LTC2654-H12 (Internal Reference = 2.048V)
SYMBOL PARAMETER CONDITIONS
LTC2654-12 LTC2654B-16
UNITSMIN TYP MAX MIN TYP MAX
DC Performance
Resolution
l
12 16 Bits
Monotonicity (Note 3)
l
12 16 Bits
DNL Differential Nonlinearity (Note 3)
l
±0.1 ±0.5 ±0.3 ±1 LSB
INL Integral Nonlinearity (Note 3) V
CC
= 5.5V, V
REF
= 2.5V
l
±0.5 ±1 ±2 ±4 LSB
Load Regulation V
CC
= 5V ±10%, Integral Reference,
Mid-Scale, –15mA ≤ I
OUT
≤ 15mA
l
0.04 0.125 0.6 2 LSB/mA
ZSE Zero-Scale Error
l
13 13 mV
V
OS
Offset Error (Note 4)
l
±1 ±2 ±1 ±2 mV
V
OS
Temperature Coeffi cient 5 5 µV/°C
GE Gain Error (Note 13)
l
±0.02 ±0.1 ±0.02 ±0.1 %FSR
Gain Temperature Coeffi cient
1 1 ppm/°C
LTC2654B-L16/ LTC2654-L12 (Internal Reference = 1.25V)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
LK
Digital Input Leakage V
IN
= GND to V
CC
l
±1 µA
C
IN
Digital Input Capacitance (Note 9)
l
8pF
AC Performance
t
S
Settling Time ±0.024% (±1LSB at 12 Bits) (Note 10)
±0.0015% (±1LSB at 16 Bits) (Note 10)
4.2
8.9
µs
µs
Settling Time for 1LSB Step ±0.024% (±1LSB at 12 Bits)
±0.0015% (±1LSB at 16 Bits)
2.2
4.9
µs
µs
Voltage Output Slew Rate 1.8 V/µs
Capacitive Load Driving 1000 pF
Glitch Impulse At Mid-Scale Transition (Note 11) 3 nV•s
DAC-to-DAC Crosstalk Due to Full-Scale Output Change (Note 12) 3 nV•s
Multiplying Bandwidth 150 kHz
e
n
Output Voltage Noise Density At f = 1kHz
At f = 10kHz
85
80
nV/√Hz
nV/√Hz
Output Voltage Noise 0.1Hz to 10Hz, Internal Reference
0.1Hz to 200kHz, Internal Reference
8
400
µV
P-P
µV
P-P
The l denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at T
A
= 25°C.
V
CC
= 4.5V to 5.5V, V
OUT
unloaded unless otherwise specifi ed.