Linear Technology DC1333A-C - LTC2640-HM12: 12-Bit SPI DAC (4.096V ref, Reset to Mid-Scale), req DC590 DC1333A-C DC1333A-C Data Sheet
Product codes
DC1333A-C
LTC2640
7
2640fc
timing characteristics
The
l
denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. V
CC
= 2.7V to 5.5V. (See Figure 1) (Note 8).
LTC2640-LM12/-LM10/-LM8/-LZ12/-LZ10/-LZ8, LTC2640A-LM12/-LZ12 (V
FS
= 2.5V)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
t
1
SDI Valid to SCK Setup
l
4
ns
t
2
SDI Valid to SCK Hold
l
4
ns
t
3
SCK High Time
l
9
ns
t
4
SCK Low Time
l
9
ns
t
5
CS/LD Pulse Width
l
10
ns
t
6
LSB SCK High to CS/LD High
l
7
ns
t
7
CS/LD Low to SCK High
l
7
ns
t
9
CLR Pulse Width
l
20
ns
t
10
CS/LD High to SCK Pos. Edge
l
7
ns
SCK Frequency
50% Duty Cycle
l
50
MHz
electrical characteristics
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 4.5V to 5.5V, V
OUT
unloaded unless otherwise specified.
LTC2640-HM12/-HM10/-HM8/-HZ12/-HZ10/-HZ8, LTC2640A-HM12/-HZ12 (V
FS
= 4.096V)
LTC2640-8
LTC2640-10
LTC2640-12
LTC2640A-12
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
DC Performance
Resolution
l
8
10
12
12
Bits
Monotonicity
V
CC
= 5V, Internal Ref. (Note 4)
l
8
10
12
12
Bits
DNL
Differential
Nonlinearity
V
CC
= 5V, Internal Ref. (Note 4)
l
±0.5
±0.5
±1
±1
LSB
INL
Integral
Nonlinearity
V
CC
= 5V, Internal Ref. (Note 4)
l
±0.05 ±0.5
±0.2
±1
±1
±2.5
±0.5
±1
LSB
ZSE
Zero-Scale Error V
CC
= 5V, Internal Ref.,
Code = 0
l
0.5
5
0.5
5
0.5
5
0.5
5
mV
V
OS
Offset Error
V
CC
= 5V, Internal Ref. (Note 5)
l
±0.5
±5
±0.5
±5
±0.5
±5
±0.5
±5
mV
V
OSTC
V
OS
Temperature
Coefficient
V
CC
= 5V, Internal Ref. (Note 5)
±10
±10
±10
±10
µV/°C
FSE
Full-Scale Error
V
CC
= 5V, Internal Ref. (Note 11)
l
±0.08 ±0.4
±0.08 ±0.4
±0.08 ±0.4
±0.08 ±0.4
%FSR
V
FSTC
Full-Scale Voltage
Temperature
Coefficient
V
CC
= 5V, Internal Ref. (Note 10)
C-Grade
I-Grade
H-Grade
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
ppm/°C
ppm/°C
ppm/°C
Load Regulation V
CC
= 5V ±10%,
Internal Ref. Mid-Scale,
–10mA ≤ I
OUT
≤ 10mA
l
0.006 0.01
0.022 0.04
0.09 0.16
0.09 0.16 LSB/mA
R
OUT
DC Output
Impedance
V
CC
= 5V ±10%,
Internal Ref. Mid-Scale,
–10mA ≤ I
OUT
≤ 10mA
l
0.09 0.156
0.09 0.156
0.09 0.156
0.09 0.156
Ω