2
LTC1605-1/LTC1605-2
(Notes 1, 2)
VANA .......................................................................... 7V
VDIG to VANA ........................................................... 0.3V
VDIG ........................................................................... 7V
Ground Voltage Difference
DGND, AGND1 and AGND2 ..............................
±0.3V
Analog Inputs (Note 3)
VIN ..................................................................... ±25V
CAP ............................ VANA + 0.3V to AGND2 – 0.3V
REF .................................... Indefinite Short to AGND2
Momentary Short to VANA
Digital Input Voltage (Note 4) ........ VDGND – 0.3V to 10V
Digital Output Voltage ........ VDGND – 0.3V to VDIG + 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
TJMAX = 125°C, θJA = 95°C/W (G)
TJMAX = 125°C, θJA = 130°C/W (N)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Analog Input Range (Note 9)
4.75V
≤ VANA ≤ 5.25V, 4.75V ≤ VDIG ≤ 5.25V
LTC1605-1
q
0 to 4
V
LTC1605-2
q
±4V
CIN
Analog Input Capacitance
10
pF
RIN
Analog Input Impedance
10
k
The q denotes the specifications which apply over the full operating temperature range, otherwise
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Resolution
q
16
Bits
No Missing Codes
q
15
Bits
Transition Noise
1
LSBRMS
Integral Linearity Error
(Note 7)
q
±3LSB
Zero Error
Ext. Reference = 2.5V (Note 8)
q
±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)
q
±0.50
%
Full-Scale Error Drift
Ext. Reference = 2.5V
±2
ppm/
°C
Power Supply Sensitivity
VANA = VDIG = VDD
VDD = 5V ±5% (Note 9)
±8LSB
The q 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
UU
W
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
VIN
AGND1
REF
CAP
AGND2
D15 (MSB)
D14
D13
D12
D11
D10
D9
D8
DGND
VDIG
VANA
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 TA = 25°C. With external reference (Notes 5, 6).
specifications are at TA = 25°C. (Note 5)