LTC1867LACGN#PBF Linear Technology, LTC1867LACGN#PBF Datasheet - Page 14

• Manufacturer Part Number: LTC1867LACGN#PBF
• Description: IC ADC 16BIT 8CH 175KSPS 16SSOP
• Manufacturer: Linear Technology

Specifications of LTC1867LACGN#PBF

• Number Of Bits: 16
• Sampling Rate (per Second): 175k
• Data Interface: MICROWIRE™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 2.7mW
• Voltage Supply Source: Single Supply
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP (0.150", 3.90mm Width)
• Number Of Elements: 1
• Resolution: 16Bit
• Architecture: SAR
• Sample Rate: 175KSPS
• Input Polarity: Unipolar/Bipolar
• Input Type: Voltage
• Rated Input Volt: 2.5/±1.25V
• Differential Input: Yes
• Power Supply Requirement: Analog and Digital
• Single Supply Voltage (typ): 3.3V
• Single Supply Voltage (min): 2.7V
• Single Supply Voltage (max): 3.6V
• Dual Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Power Dissipation: 2.7mW
• Differential Linearity Error: -1LSB(Min)
• Integral Nonlinearity Error: ±3LSB
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 16
• Package Type: SSOP N
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LTC1863L/LTC1867L
(LTC1867)
APPLICATIONS INFORMATION
14
(LTC1863)
CS/CONV
SDO
SDO
SCK
SDI
Hi-Z
Figure 8. LTC1863L/LTC1867L Bipolar Transfer
Characteristics (Two’s Complement)
Hi-Z
011...111
011...110
000...001
000...000
111...111
111...110
100...001
100...000
t
t
DON'T CARE
CONV
CONV
–FS/2
Figure 7. Example 2, CS/CONV Starts a Conversion With Short Active HIGH Pulse.
With CS/CONV Returning LOW Before the Conversion, the ADC Remains Powered Up
INPUT VOLTAGE (V)
MSB = D11
MSB = D15
FS = 2.5V
1LSB = FS/2
1LSB (LTC1863L) = 610μV
1LSB (LTC1867L) = 38.1μV
BIPOLAR
LSB
–1
ZERO
SD
0V
1
LSB
1
D10
D14 D13
n
0S
2
FS/2 – 1LSB
D9
S1
3
1863L7L F08
D12
S0
D8
4
COM UNI SLP
D11 D10
D7
5
D6
6
D5
D9
7
D4
D8
8
D7
D3
9
D2
D6
10
D5
D1
11
D4
D0
12
Figure 9. LTC1863L/LTC1867L Unipolar Transfer
Characteristics (Straight Binary)
NOT NEEDED FOR LTC1863
D3
13
111...111
111...110
100...001
100...000
011...111
011...110
000...001
000...000
D2
14
D1
UNIPOLAR
15
0V
ZERO
D0
t
ACQ
16
DON'T CARE
INPUT VOLTAGE (V)
FS = 2.5V
1LSB = FS/2
1LSB (LTC1863L) = 610μV
1LSB (LTC1867L) = 38.1μV
n
DON'T CARE
FS – 1LSB
1863L7L F09
1863l7lfc
1863L7L F07