LTC1608 Datasheet, PDF (2/20 Pages) Linear Technology – High Speed, 16-Bit, 500ksps Sampling A/D Converter with Shutdown

LTC1608
ABSOLUTE AXI U RATI GS
AV_DD = DV_DD = OV_DD = V_DD (Notes 1, 2)
Supply Voltage (V_DD) ................................................ 6V
Negative Supply Voltage (V_SS) ............................... – 6V
Total Supply Voltage (V_DD to V_SS) .......................... 12V
Analog Input Voltage
(Note 3) ......................... (V_SS – 0.3V) to (V_DD + 0.3V)
V_REF Voltage (Note 4) ................. – 0.3V to (V_DD + 0.3V)
REFCOMP Voltage (Note 4) ......... – 0.3V to (V_DD + 0.3V)
Digital Input Voltage (Note 4) ....................– 0.3V to 10V
Digital Output Voltage .................. – 0.3V to (V_DD + 0.3V)
Power Dissipation ............................................. 500mW
Operating Temperature Range .................... 0°C to 70°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
A_IN+ 1
A_IN– 2
V_REF 3
REFCOMP 4
AGND 5
AGND 6
AGND 7
AGND 8
DV_DD 9
DGND 10
D15 (MSB) 11
D14 12
D13 13
D12 14
D11 15
D10 16
D9 17
D8 18
TOP VIEW
36 AV_DD
35 AV_DD
34 V_SS
33 SHDN
32 CS
31 CONV
30 RD
29 OV_DD
28 OGND
27 BUSY
26 D0
25 D1
24 D2
23 D3
22 D4
21 D5
20 D6
19 D7
G PACKAGE
36-LEAD PLASTIC SSOP
T_JMAX = 125°C, θ_JA = 95°C/W
ORDER
PART NUMBER
LTC1608CG
LTC1608ACG
Consult factory for parts specified with wider operating temperature ranges.
CO VERTER CHARACTERISTICS The q denotes specifications that apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C. With Internal Reference (Notes 5, 6), unless otherwise noted.
PARAMETER
CONDITIONS
LTC1608
MIN TYP MAX
LTC1608A
MIN TYP MAX
Resolution (No Missing Codes)
q
15 16
16 16
Integral Linearity Error
(Note 7)
q
±1 ±4
±0.5 ±2
Transition Noise
(Note 8)
0.7
0.7
Offset Error
(Note 9)
q
± 0.05 ± 0.125
±0.05 ±0.125
Offset Tempco
(Note 9)
0.5
0.5
Full-Scale Error
Internal Reference
External Reference
± 0.125 ± 0.25
±0.25
±0.125 ±0.25
±0.25
Full-Scale Tempco
I_OUT(Reference) = 0, Internal Reference
±15
±15
UNITS
Bits
LSB
LSB_RMS
% FSR
ppm/°C
%
%
ppm/°C
A ALOG I PUT The q denotes specifications that apply over the full operating temperature range, otherwise
specifications are at T_A = 25°C.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
V_IN
Analog Input Range (Note 2)
I_IN
Analog Input Leakage Current
C_IN
Analog Input Capacitance
4.75 ≤ V_DD ≤ 5.25V, – 5.25 ≤ V_SS ≤ – 4.75V,
V_SS ≤ (A_IN–, A_IN+) ≤ AV_DD
CS = High
q
Between Conversions
During Conversions
±2.5
±1
43
5
t_ACQ
Sample-and-Hold Acquisition Time
380
t_AP
Sample-and-Hold Acquisition Delay Time
– 1.5
t_jitter
Sample-and-Hold Acquisition Delay Time Jitter
5
CMRR Analog Input Common Mode Rejection Ratio
– 2.5V < (A_IN– = A_IN+) < 2.5V
68
UNITS
V
µA
pF
pF
ns
ns
ps_RMS
dB
2