Datasheet

2
LTC1605-1/LTC1605-2
(Notes 1, 2)
V
ANA
.......................................................................... 7V
V
DIG
to V
ANA
........................................................... 0.3V
V
DIG
........................................................................... 7V
Ground Voltage Difference
DGND, AGND1 and AGND2 .............................. ±0.3V
Analog Inputs (Note 3)
V
IN
..................................................................... ±25V
CAP ............................V
ANA
+ 0.3V to AGND2 – 0.3V
REF....................................Indefinite Short to AGND2
Momentary Short to V
ANA
Digital Input Voltage (Note 4) ........ V
DGND
– 0.3V to 10V
Digital Output Voltage........ V
DGND
– 0.3V to V
DIG
+ 0.3V
Power Dissipation.............................................. 500mW
Operating Ambient Temperature Range
LTC1605-1C/LTC1605-2C .......................0°C to 70°C
LTC1605-1I/LTC1605-2I .................... – 40°C to 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)..................300°C
Consult factory for Military grade parts.
ORDER PART
NUMBER
LTC1605-1CG
LTC1605-1IG
LTC1605-2CG
LTC1605-2IG
LTC1605-1CN
LTC1605-1IN
LTC1605-2CN
LTC1605-2IN
T
JMAX
= 125°C, θ
JA
= 95°C/W (G)
T
JMAX
= 125°C, θ
JA
= 130°C/W (N)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Analog Input Range (Note 9) 4.75V ≤ V
ANA
≤ 5.25V, 4.75V ≤ V
DIG
≤ 5.25V
LTC1605-1 ● 0 to 4 V
LTC1605-2
● ±4V
C
IN
Analog Input Capacitance 10 pF
R
IN
Analog Input Impedance 10 kΩ
The ● denotes the specifications which apply over the full operating temperature range, otherwise
PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution ● 16 Bits
No Missing Codes ● 15 Bits
Transition Noise 1 LSB
RMS
Integral Linearity Error (Note 7) ● ±3LSB
Zero Error Ext. Reference = 2.5V (Note 8) ● ±10 mV
Zero Error Drift ±2 ppm/°C
Full-Scale Error Drift ±7 ppm/°C
Full-Scale Error Ext. Reference = 2.5V (Notes 12, 13) ● ±0.50 %
Full-Scale Error Drift Ext. Reference = 2.5V ±2 ppm/°C
Power Supply Sensitivity
V
ANA
= V
DIG
= V
DD
V
DD
= 5V ±5% (Note 9) ±8LSB
The ● denotes the specifications which apply over the full operating
CO VERTER CHARACTERISTICS
U
A ALOG I PUT
UU
ABSOLUTE AXI U RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UUW
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
IN
AGND1
REF
CAP
AGND2
D15 (MSB)
D14
D13
D12
D11
D10
D9
D8
DGND
V
DIG
V
ANA
BUSY
CS
R/C
BYTE
D0
D1
D2
D3
D4
D5
D6
D7
G PACKAGE
28-LEAD PLASTIC SSOP
N PACKAGE
28-LEAD PDIP
TOP VIEW
temperature range, otherwise specifications are at T
A
= 25°C. With external reference (Notes 5, 6).
specifications are at T
A
= 25°C. (Note 5)