LTC7541A
ELECTRICAL CHARACTERISTICS
VDD = 15V, VREF = 10V, OUT 1 = OUT 2 = GND = 0V, TA = TMIN to TMAX, unless otherwise specified.
ALL GRADES
SYMBOL PARAMETER
Power Supply
CONDITIONS
MIN
TYP
MAX
UNIT
V
Operating Supply Range
Suppy Current
●
5
15
16
V
DD
I
Digital Inputs = V or V
●
●
2
100
mA
µA
DD
IH
IL
Digital Inputs = 0V or V
DD
Digital Inputs
V
V
Digital Input High Voltage
Digital Input Low Voltage
Digital Input Current
●
●
●
●
2.4
V
V
IH
IL
0.8
±1
8
I
0.001
µA
pF
IN
C
IN
Digital Input Capacitance
(Note 3), V = 0V
IN
AC Performance
Propagation Delay
(Notes 5, 6)
(Notes 5, 7)
100
1000
1.0
ns
Digital-to-Analog Glitch Impulse
Multiplying Feedthrough Error
Output Current Settling Time
Output Capacitance (Note 3)
nV-sec
V
= ±10V, 10kHz Sinewave
mV
P-P
REF
(Note 5), To 0.01% for Full-Scale Change
0.6
µs
C
OUT
Digital Inputs = V
C
C
●
●
200
70
pF
pF
IH
OUT1
OUT2
Digital Inputs = V
C
C
●
●
70
200
pF
pF
IL
OUT1
OUT2
The
●
denotes specifications which apply over the full operating
Note 5: OUT 1 load = 100Ω in parallel with 13pF.
Note 6: Measured from digital input change to 90% of final analog value.
Digital inputs = 0V to V or V to 0V.
temperature range.
Note 1: ±0.5LSB = ±0.012% of full scale.
Note 2: Using internal feedback resistor.
Note 3: Guaranteed by design, not subject to test.
DD
DD
Note 7: V = 0V. All digital inputs 0V to V or V to 0V. Measured
REF
DD
DD
using LT1363 as output amplifier.
Note 4: I
inputs = V
with all digital inputs = 0V or I
with all digital
OUT1
OUT2
.
DD
W
BLOCK DIAGRAM
20k
40k
20k
20k
V
R
FB
REF
40k
40k
40k
40k
40k
40k
10k
OUT 1
OUT 2
V
DD
DECODER
TTL/DTL/CMOS COMPATIBLE DIGITAL INPUTS
• • • •
GND
BIT 1
(MSB)
BIT 2
BIT 3
BIT 4
BIT 12
(LSB)
7541 BD
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However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.
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