LTC1599 데이터 시트보기 (PDF) - Linear Technology
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LTC1599 Datasheet PDF : 20 Pages
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LTC1599
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V ±10%, VREF = 10V, IOUT1 = IOUT2F = IOUT2S = DGND = 0V,
TA = TMIN to TMAX unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP MAX
UNITS
Reference Input
RREF
R1, R2
DAC Input Resistance (Unipolar)
R1, R2 Resistance (Bipolar)
(Note 6)
(Notes 6, 13)
● 4.5
6
10
kΩ
●9
14
20
kΩ
ROFS, RFB Feedback and Offset Resistances
AC Performance (Note 4)
(Note 6)
●9
13.5
20
kΩ
Output Current Settling Time
(Notes 7, 8)
1
µs
Midscale Glitch Impulse
(Note 12)
1.5
nV-s
Digital-to-Analog Glitch Impulse
(Note 9)
1
nV-s
Multiplying Feedthrough Error
THD
Total Harmonic Distortion
VREF = ±10V, 10kHz Sine Wave
(Note 10)
1
mVP-P
108
dB
Output Noise Voltage Density
(Note 11)
10
nV/√Hz
Analog Outputs (Note 4)
COUT
Output Capacitance (Note 4)
DAC Register Loaded to All 1s: COUT1
●
DAC Register Loaded to All 0s: COUT1
●
Digital Inputs
115
130
pF
70
80
pF
VIH
Digital Input High Voltage
VIL
Digital Input Low Voltage
IIN
Digital Input Current
CIN
Digital Input Capacitance
Timing Characteristics
(Note 4) VIN = 0V
● 2.4
V
●
0.8
V
●
0.001
±1
µA
●
8
pF
tDS
Data to WR Setup Time
tDH
Data to WR Hold Time
tWR
WR Pulse Width
tBWS
MLBYTE to WR Setup Time
tBWH
MLBYTE to WR Hold Time
tLD
LD Pulse Width
tCLR
Clear Pulse Width
tLWD
WR to LD Delay Time
Power Supply
● 80
20
ns
●0
–12
ns
● 80
25
ns
●0
–12
ns
●0
–12
ns
● 150
55
ns
● 150
50
ns
●0
ns
VCC
Supply Voltage
ICC
Supply Current
Digital Inputs = 0V or VCC
● 4.5
5
5.5
V
●
10
µA
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: ±1LSB = ±0.0015% of full scale = ±15.3ppm of full scale.
Note 3: Using internal feedback resistor.
Note 4: Guaranteed by design, not subject to test.
Note 5: I(OUT1) with DAC register loaded to all 0s.
Note 6: Typical temperature coefficient is 100ppm/°C.
Note 7: IOUT1 load = 100Ω in parallel with 13pF.
Note 8: To 0.0015% for a full-scale change, measured from the falling
edge of LD.
Note 9: VREF = 0V. DAC register contents changed from all 0s to all 1s or
all 1s to all 0s. LD high, WR and MLBYTE pulsed.
Note 10: VREF = 6VRMS at 1kHz. DAC register loaded with all 1s.
RL = 600Ω. Unipolar mode op amp = LT1468.
Note 11: Calculation from en = √4kTRB where: k = Boltzmann constant
(J/°K), R = resistance (Ω), T = temperature (°K), B = bandwidth (Hz).
Note 12: Midscale transition code 0111 1111 1111 1111 to
1000 0000 0000 0000.
Note 13: R1 and R2 are measured between R1 and RCOM, R2 and RCOM.
sn1599 1599fs
3
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