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| ISL26712_14 Datasheet, PDF (6/21 Pages) Intersil Corporation – 12-Bit, 10-Bit and 8-Bit, 1MSPS SAR ADCs | |||
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ISL26712, ISL26710, ISL26708
Electrical Specifications VDD = +3.0V to +3.6V, FSCLK = 18MHz, FS = 1MSPS, VREF = 2.0V; VDD = +4.75V to +5.25V, FSCLK = 18MHz,
FS = 1MSPS, VREF = 2.5V; VCM = VREF, unless otherwise noted. Typical values are at TA = +25°C. Boldface limits apply over the operating temperature
range, -40°C to +85°C. (Continued)
ISL26712
ISL26710
ISL26708
SYMBOL
PARAMETER
MIN
MAX MIN
MAX MIN
MAX
TEST CONDITIONS (Note 10) TYP (Note 10) (Note 10) TYP (Note 10) (Note 10) TYP (Note 10) UNITS
GAIN Positive Gain Error
± REF input range
-2
±0.1
2
-1
±0.1
1
-0.75 ±0.04 0.75 LSB
Negative Gain Error
-2
±0.1
2
-1
±0.1
1
-0.75 ±0.04 0.75 LSB
ANALOG INPUT (Note 11)
|AIN| Full-Scale Input Span 2 x VREF
AIN+, Absolute Input Voltage Range
AINâ,
AIN+
VCM = VREF
AINâ
ILEAK Input DC Leakage
Current
(AIN+) â (AINâ)
(AIN+) â (AINâ)
(AIN+) â (AINâ)
V
VCM±VREF/2
VCM± VREF/2
-1
1
VCM±VREF/2
VCM± VREF/2
-1
1
VCM±VREF/2
V
VCM± VREF/2
V
-1
1
µA
CVIN Input Capacitance
Track/Hold mode
13/5
REFERENCE INPUT
13/5
13/5
pF
VREF VREF Input Voltage
VDD = 3V (1% tolerance
2.0
2.0
2.0
V
Range
for specified
performance)
VDD = 5V (1% tolerance
2.5
2.5
2.5
V
for specified
performance)
ILEAK DC Leakage Current
CREF VREF Input Capacitance Track/Hold mode
-1
1
21/18.5
LOGIC INPUTS
-1
1
21/18.5
-1
1
µA
21/18.5
pF
VIH Input High Voltage
VIL Input Low Voltage
ILEAK Input Leakage Current
CIN Input Capacitance
2.4
2.4
2.4
V
0.8
0.8
0.8
V
-1
1
-1
1
-1
1
µA
10
10
10
pF
LOGIC OUTPUTS
VOH Output High Voltage
VOL Output Low Voltage
IOZ Floating-State Output
Current
ISOURCE = 200µA
ISINK = 200µA
VDD - 0.3
-1
VDD - 0.3
0.4
1
-1
VDD - 0.3
0.4
1
-1
V
0.4
V
1
µA
COUT Floating-State
Output Capacitance
10
10
10
pF
Output Coding
Twoâs Complement
CONVERSION RATE
tCONV Conversion Time
tACQ Acquisition Time
Fmax Throughput Rate
FSCLK = 18MHz
FSCLK = 18MHz
888
200
1000
POWER REQUIREMENTS
888
200
1000
888 ns
200 ns
1000 kSPS
VDD Positive Supply Voltage
Range
2.7
3.6
2.7
3.6
2.7
3.6
V
4.75
5.25 4.75
5.25 4.75
5.25 V
6
FN7999.3
September 5, 2012
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