4
LTC1606
1606fa
LTC1606/LTC1606A
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
f
SAMPLE(MAX)
Maximum Sampling Frequency 250 kHz
t
CONV
Conversion Time 2.5 µs
t
ACQ
Acquisition Time 1.5 µs
t
1
Convert Pulse Width (Note 11) 40 ns
t
2
Data Valid Delay After R/C (Note 9) 2.5 µs
t
3
BUSY Delay from R/C C
L
= 30pF 65 ns
t
4
BUSY Low 2.5 µs
t
5
BUSY Delay After End of Conversion 100 ns
t
6
Aperture Delay 40 ns
t
7
Bus Relinquish Time 15 50 ns
t
8
BUSY Delay After Data Valid 20 90 ns
t
9
Previous Data Valid After R/C 2 µs
t
10
R/C to CS Setup Time (Notes 9, 10) 5ns
t
11
Time Between Conversions 4 µs
t
12
Bus Access C
L
= 30pF 15 60 ns
Byte Delay C
L
= 30pF (Notes 9, 10) 15 60 ns
LTC1606/LTC1606A
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IH
High Level Input Voltage V
DD
= 5.25V 2.4 V
V
IL
Low Level Input Voltage V
DD
= 4.75V 0.8 V
I
IN
Digital Input Current V
IN
= 0V to V
DD
±10 µA
C
IN
Digital Input Capacitance 5pF
V
OH
High Level Output Voltage V
DD
= 4.75V I
O
= –10µA 4.5 V
I
O
= –200µA 4.0 V
V
OL
Low Level Output Voltage V
DD
= 4.75V I
O
= 160µA 0.05 V
I
O
= 1.6mA 0.10 0.4 V
I
OZ
Hi-Z Output Leakage D15 to D0 V
OUT
= 0V to V
DD
, CS High ±10 µA
C
OZ
Hi-Z Output Capacitance D15 to D0 CS High (Note 9) 15 pF
I
SOURCE
Output Source Current V
OUT
= 0V –10 mA
I
SINK
Output Sink Current V
OUT
= V
DD
10 mA
TIMING CHARACTERISTICS
WU
The indicates specifications which apply over the full
operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 5)
The indicates specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 5)
DIGITAL I PUTS A D DIGITAL OUTPUTS
UU
5
LTC1606
1606fa
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: All voltage values are with respect to ground with DGND, AGND1
and AGND2 wired together (unless otherwise noted).
Note 3: When these pin voltages are taken below ground or above V
ANA
=
V
DIG
= V
DD
, they will be clamped by internal diodes. This product can
handle input currents of greater than 100mA below ground or above V
DD
without latch-up.
Note 4: When these pin voltages are taken below ground, they will be
clamped by internal diodes. This product can handle input currents of
90mA below ground without latchup. These pins are not clamped to V
DD
.
Note 5: V
DD
= 5V, f
SAMPLE
= 250kHz, t
r
= t
f
= 5ns unless otherwise
specified.
Note 6: Linearity, offset and full-scale specifications apply for a V
IN
input
with respect to ground.
Note 7: Integral nonlinearity is defined as the deviation of a code from a
straight line passing through the actual end points of the transfer curve.
The deviation is measured from the center of the quantization band.
Note 8: Bipolar offset is the offset voltage measured from –0.5 LSB when
the output code flickers between 0000 0000 0000 0000 and 1111 1111
1111 1111.
Note 9: Guaranteed by design, not subject to test.
Note 10: Recommended operating conditions.
Note 11: With CS low the falling R/C edge starts a conversion. If R/C
returns high at a critical point during the conversion, it can create errors.
For best results, ensure that R/C returns high within 1µs after the start of
the conversion.
Note 12: As measured with fixed resistors shown in Figure 4. Adjustable to
zero with external potentiometer.
Note 13: Full-scale error is the worst-case of –FS or +FS untrimmed
deviation from ideal first and last code transitions, divided by the transition
voltage (not divided by the full-scale range) and includes the effect of
offset error.
Note 14: All specifications in dB are referred to a full-scale ±10V input.
Note 15: Full-power bandwidth is defined as full-scale input frequency at
which a signal-to-(noise + distortion) degrades to 60dB or 10 bits of
accuracy.
Note 16: Recovers to specified performance after (2 • FS) input
overvoltage.
POWER REQUIREMENTS
WU
LTC1606/LTC1606A
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
DD
Positive Supply Voltage (Notes 9, 10) 4.75 5.25 V
I
DD
Positive Supply Current 15 20 mA
P
DIS
Power Dissipation 75 100 mW
The indicates specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 5)
6
LTC1606
1606fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Supply Current vs Supply Voltage
SUPPLY VOLTAGE (V)
4.5
13.5
SUPPLY CURRENT (mA)
14.0
14.5
15.0
15.5
16.0
16.5
4.75 5.0 5.25 5.5
1606 G01
f
SAMPLE
= 250kHz
TEMPERATURE (°C)
–50
14.0
SUPPLY CURRENT (mA)
14.5
15.0
15.5
16.0
–25 0 25 50
1606 G02
75 100
f
SAMPLE
= 250kHz
LOAD CURRENT (mA)
–15
CHANGE IN CAP VOLTAGE (V)
0.02
0.06
0.10
1
1606 G03
0.02
0.06
0
0.04
0.08
0.04
0.08
0.10
–11–13
–7–9
–3 –1 3
–5
5
Supply Current vs Temperature
Change in CAP Voltage
vs Load Current
Typical INL Curve Typical DNL Curve
Power Supply Rejection
vs Ripple Frequency
CODE
0
INL (LSB)
0
1.0
65535
1606 G04
1.0
2.0
16384
32768
49152
2.0
0.5
0.5
1.5
1.5
CODE
0
DNL (LSB)
0
1.0
65535
1606 G04
1.0
2.0
16384
32768
49152
2.0
0.5
0.5
1.5
1.5
RIPPLE FREQUENCY (Hz)
110
–30
POWER SUPPLY REJECTION (dB)
–10
–20
100 1k 10k 100k 1M
LT1606 G06
–40
–50
–60
–70
0
f
SAMPLE
= 250kHz
Nonaveraged 4096 Point FFT Plot
FREQUENCY (kHz)
0
MAGNITUDE (dB)
–50
–30
–10
100
1606 G07
–70
–90
110
130
–40
–20
0
–60
–80
100
120
25
50
75
125
f
SAMPLE
= 250kHz
f
IN
= 1.04kHz
SINAD = 90dB
THD = –100dB
SINAD vs Input Frequency
FREQUENCY (kHz)
1
60
SINAD (dB)
80
85
90
10 100 1000
1606 G08
75
70
65
f
SAMPLE
= 250kHz
Total Harmonic Distortion (THD)
vs Input Frequency
FREQUENCY (kHz)
1
–110
THD (dB)
–80
–70
–60
10 100 1000
1606 G09
–90
–100
f
SAMPLE
= 250kHz

LTC1606ACSW#TRPBF

Mfr. #:
Manufacturer:
Analog Devices / Linear Technology
Description:
Analog to Digital Converters - ADC 16-B, 250ksps, 1x S ADC
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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