LTC2604/LTC2614/LTC2624
5
2604fd
TYPICAL PERFORMANCE CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Linearity and monotonicity are defi ned from code k
L
to code
2
N
– 1, where N is the resolution and k
L
is given by k
L
= 0.016(2
N
/V
REF
),
rounded to the nearest whole code. For V
REF
= 4.096V and N = 16,
k
L
= 256, linearity is defi ned from code 256 to code 65,535.
Note 3: Digital inputs at 0V or V
CC
.
Note 4: DC crosstalk is measured with V
CC
= 5V and V
REF
= 4.096V, with
the measured DAC at midscale, unless otherwise noted.
Note 5: R
L
= 2kΩ to GND or V
CC
.
Note 6: Guaranteed by design and not production tested.
Note 7: Inferred from measurement at code 256 (LTC2604), code 64
(LTC2614) or code 16 (LTC2624), and at full scale.
Note 8: V
CC
= 5V, V
REF
= 4.096V. DAC is stepped 1/4 scale to 3/4 scale and
3/4 scale to 1/4 scale. Load is 2k in parallel with 200pF to GND.
Note 9: V
CC
= 5V, V
REF
= 4.096V. DAC is stepped 1LSB between half scale
and half scale –1. Load is 2k in parallel with 200pF to GND.
Note 10: These specifi cations apply to LTC2604/LTC2604-1, LTC2614/
LTC2614-1, LTC2624/LTC2624-1.
TEMPERATURE (°C)
–50 –30 –10 10 30 50 70 90
OFFSET ERROR (mV)
2604 G03
3
2
1
0
–1
–2
–3
I
OUT
(mA)
–35 –25 –15 –5 5 15 25 35
ΔV
OUT
(mV)
2604 G02
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
V
REF
= V
CC
= 5V
CODE = MIDSCALE
V
REF
= V
CC
= 3V
I
OUT
(mA)
–40 –30 –20 –10 0 10 20 30 40
ΔV
OUT
(V)
2604 G01
0.10
0.08
0.06
0.04
0.02
0
–0.02
–0.04
–0.06
–0.08
–0.10
V
REF
= V
CC
= 5V
V
REF
= V
CC
= 3V
V
REF
= V
CC
= 5V
V
REF
= V
CC
= 3V
CODE = MIDSCALE
Current Limiting Load Regulation Offset Error vs Temperature
V
CC
(V)
2.5 3 3.5 4 4.5 5 5.5
OFFSET ERROR (mV)
2604 G06
3
2
1
0
–1
–2
–3
TEMPERATURE (°C)
–50 –30 –10 10 30 50 70 90
GAIN ERROR (%FSR)
2604 G05
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
TEMPERATURE (°C)
–50 –30 –10 10 30 50 70 90
ZERO-SCALE ERROR (mV)
2604 G04
3
2.5
2.0
1.5
1.0
0.5
0
Gain Error vs Temperature Offset Error vs V
CC
Zero-Scale Error vs Temperature
(LTC2604/LTC2604-1, LTC2614/LTC2614-1, LTC2624/LTC2624-1)
The ● denotes specifi cations which apply over the full operating temperature
range, otherwise specifi cations are at T
A
= 25°C. REF A = REF B = REF C = REF D = 4.096V (V
CC
= 5V), REF A = REF B = REF C = REF D
= 2.048V (V
CC
= 2.5V), REF LO = 0V, V
OUT
unloaded, unless otherwise noted. (Note 10)
TIMING CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
t
10
CS/LD High to SCK Positive Edge
l
7ns
SCK Frequency 50% Duty Cycle
l
50 MHz
