Datasheet

5
LTC1605-1/LTC1605-2
TYPICAL PERFOR A CE CHARACTERISTICS
UW
SUPPLY VOLTAGE (V)
4.50
9.5
SUPPLY CURRENT (mA)
10.0
10.5
11.0
11.5
12.0
12.5
4.75 5.00 5.25 5.50
1605-1/2 G01
f
SAMPLE
= 100kHz
TEMPERATURE (°C)
–50
10.0
POWER SUPPLY CURRENT (mA)
10.5
11.0
11.5
12.0
–25 0 25 50
1605-1/2 G02
75 100
f
SAMPLE
= 100kHz
LOAD CURRENT (mA)
CHANGE IN CAP VOLTAGE (V)
0.04
0.02
0
–0.02
–0.04
–0.06
–0.08
–0.10
–60 –40 –20 0
1605-1/2 G03
–70–80 –50 –30 –10 10
LTC1605-1
LTC1605-2
CODE
0
DNL (LSB)
65535
1605-1/2 G05
16384
32768
49152
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
FREQUENCY (kHz)
0
MAGNITUDE (dB)
1605-1/2 G07/F11
5 10 15 20 25 30 35 40 45 50
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
f
SAMPLE
= 100kHz
f
IN
= 1kHz
SINAD = 87dB
THD = 101.1dB
SNR = 87.2dB
INPUT FREQUENCY (kHz)
1
SINAD (dB)
90
88
86
84
82
80
10 100
1605-1/2 G08
INPUT FREQUENCY (kHz)
1
TOTAL HARMONIC DISTORTION (dB)
–70
–80
–90
–100
–110
10 100
1605-1/2 G09
Supply Current vs Supply Voltage Supply Current vs Temperature
Change in CAP Voltage vs
Load Current
Typical INL Curve Typical DNL Curve
Power Supply Feedthrough
vs Ripple Frequency
LTC1605-2 Nonaveraged
4096-Point FFT Plot
SINAD vs Input Frequency
(LTC1605-2)
Total Harmonic Distortion vs
Input Frequency (LTC1605-2)
CODE
0
INL (LSBs)
65535
1605-1/2 TA02/G04
16384
32768
49152
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
RIPPLE FREQUENCY (Hz)
POWER SUPPLY FEEDTHROUGH (dB)
–20
–30
–40
–50
–60
–70
–80
100 10k 100k 1M
LTXXXX GXX
1k
LTC1605-2
LTC1605-1