LTC1609I Просмотр технического описания (PDF) - Linear Technology
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LTC1609I Datasheet PDF : 24 Pages
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LTC1609
CONVERTER CHARACTERISTICS The q indicates specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. With external reference (Notes 5, 6).
PARAMETER
CONDITIONS
LTC1609
MIN TYP MAX
LTC1609A
MIN TYP MAX
UNITS
Bipolar Zero Error Drift
Bipolar Ranges
±2
±2
ppm/°C
Unipolar Zero Error
External Reference = 2.5V, Unipolar Ranges
q
±10
±10
mV
Unipolar Zero Error Drift
Unipolar Ranges
±2
±2
ppm/°C
Full-Scale Error Drift
±7
±7
ppm/°C
Full-Scale Error
External Reference = 2.5V (Notes 12, 13)
q
±0.50
±0.25
%
Full-Scale Error Drift
External Reference = 2.5V
±2
±2
ppm/°C
Power Supply Sensitivity
VANA = VDIG = VDD
VDD = 5V ±5% (Note 9)
±8
±8
LSB
A ALOG I PUT The q indicates specifications which apply over the full operating temperature range,
otherwise specifications are at TA = 25°C. (Note 5)
SYMBOL PARAMETER
CONDITIONS
LTC1609/LTC1609A
MIN
TYP
MAX
UNITS
VIN
Analog Input Range (Note 9)
4.75V ≤ VANA ≤ 5.25V, 4.75V ≤ VDIG ≤ 5.25V, q
±10, 0V to 5V, etc.
V
(See Tables 1a and 1b)
CIN
Analog Input Capacitance
RIN
Analog Input Impedance
10
pF
See Tables 1a and 1b
kΩ
DY A IC ACCURACY (Notes 5, 14)
SYMBOL PARAMETER
CONDITIONS
LTC1609
MIN TYP MAX
LTC1609A
MIN TYP MAX
UNITS
S/(N + D) Signal-to-(Noise
+ Distortion) Ratio
1kHz Input Signal (Note 14)
10kHz Input Signal
20kHz, – 60dB Input Signal
87.5
85 87.5
dB
87
87
dB
30
30
dB
THD
Total Harmonic
Distortion
1kHz Input Signal, First 5 Harmonics
10kHz Input Signal, First 5 Harmonics
– 100
– 94
– 100 –96
dB
– 94
dB
Peak Harmonic or
Spurious Noise
1kHz Input Signal
10kHz Input Signal
– 102
– 94
– 102
dB
– 94
dB
Full-Power Bandwidth (Note 15)
275
275
kHz
–3dB Input Bandwidth
1
1
MHz
Aperture Delay
40
40
ns
Aperture Jitter
Sufficient to Meet AC Specs Sufficient to Meet AC Specs
Transient Response Full-Scale Step (Note 9)
2
2
µs
U
U U Overvoltage Recovery (Note 16)
150
150
ns
INTERNAL REFERENCE CHARACTERISTICS The q indicates specifications which apply over the full
operating temperature range, otherwise specifications are at TA = 25°C. (Note 5)
PARAMETER
CONDITIONS
LTC1609/LTC1609A
MIN
TYP
MAX
UNITS
VREF Output Voltage
VREF Output Tempco
Internal Reference Source Current
IOUT = 0
IOUT = 0
q 2.470
2.500
±5
1
2.520
V
ppm/°C
µA
External Reference Voltage for Specified Linearity (Notes 9, 10)
2.30
2.50
2.70
V
External Reference Current Drain
External Reference = 2.5V (Note 9)
q
100
µA
CAP Output Voltage
IOUT = 0
2.50
V
1609fa
3
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