參數(shù)資料
型號： DAC8812C
廠商： Texas Instruments, Inc.
英文描述： Dual, Serial Input 16-Bit Multiplying Digital-to-Analog Converter
中文描述： 雙路，串行輸入16位乘法數(shù)字到模擬轉(zhuǎn)換器
文件頁數(shù)： 3/18頁
文件大小： 1671K
代理商： DAC8812C
www.ti.com
ELECTRICAL CHARACTERISTICS
(1)
V
DD
= 2.7 V to 5.5 V, I
OUT
X = Virtual GND, A
GND
X = 0 V, V
REF
A, B = 10 V, T
A
= full operating temperature range, unless
otherwise noted.
DAC8812
SBAS349A–AUGUST 2005–REVISED DECEMBER 2005
DAC8812
TYP
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNIT
STATIC PERFORMANCE
(2)
Resolution
16
±
2
±
1
±
1
10
20
±
4
Bits
LSB
LSB
LSB
nA
nA
mV
ppm/
°
C
k
DAC8812B
DAC8812C
DAC8812
Relative accuracy
INL
Differential nonlinearity
DNL
Data = 0000h, T
A
= +25
°
C
Data = 0000h, T
A
= T
A
max
Data = FFFFh
Output leakage current
I
OUT
X
Full-scale gain error
Full-scale tempco
(3)
Feedback resistor
REFERENCE INPUT
V
REF
X range
Input resistance
Input resistance match
Input capacitance
(3)
ANALOG OUTPUT
Output current
Output capacitance
(3)
LOGIC INPUTS AND OUTPUT
G
FSE
TCV
FS
R
FB
X
±
0.75
1
5
V
DD
= 5 V
V
REF
X
R
REF
X
R
REF
X
C
REF
X
–15
15
6
V
k
%
pF
4
5
1
5
Channel-to-channel
I
OUT
X
C
OUT
X
Data = FFFFh
Code-dependent
1.6
2.5
mA
pF
50
V
DD
= +2.7 V
V
DD
= +5 V
V
DD
= +2.7 V
V
DD
= +5 V
0.6
0.8
V
V
V
V
μ
A
pF
V
V
Input low voltage
V
IL
2.1
2.4
Input high voltage
V
IH
Input leakage current
Input capacitance
(3)
Logic output low voltage
Logic output high voltage
INTERFACE TIMING
(3),(4)
Clock width high
Clock width low
CS to Clock setup
Clock to CS hold
Clock to SDO prop delay
Load DAC pulsewidth
Data setup
Data hold
Load setup
Load hold
I
IL
C
IL
V
OL
V
OH
1
10
0.4
I
OL
= 1.6 mA
I
OH
= 100
μ
A
4
t
CH
t
CL
t
CSS
t
CSH
t
PD
t
LDAC
t
DS
t
DH
t
LDS
t
LDH
25
25
0
25
2
25
20
20
5
25
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
20
(1)
(2)
Specifications subject to change without notice.
All static performance tests (except I
) are performed in a closed-loop system using an external precision OPA277 I-to-V converter
amplifier. The DAC8812 R
terminal is tied to the amplifier output. Typical values represent average readings measured at +25
°
C.
These parameters are specified by design and not subject to production testing.
All input control signals are specified with t
R
= t
F
= 2.5 ns (10% to 90% of 3 V) and timed from a voltage level of 1.5 V.
(3)
(4)
3
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