LTC1410CG Linear Technology, LTC1410CG Datasheet

IC A/D CONV 12BIT SAMPLNG 28SSOP

LTC1410CG

Manufacturer Part Number
LTC1410CG
Description
IC A/D CONV 12BIT SAMPLNG 28SSOP
Manufacturer
Linear Technology
Datasheet

Specifications of LTC1410CG

Number Of Bits
12
Sampling Rate (per Second)
1.25M
Data Interface
Parallel
Number Of Converters
1
Power Dissipation (max)
230mW
Voltage Supply Source
Dual ±
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
28-SSOP (0.200", 5.30mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LTC1410CG
Manufacturer:
Linear
Quantity:
3 307
Part Number:
LTC1410CG
Manufacturer:
LINEAR/凌特
Quantity:
20 000
10 F
FEATURE
A
TYPICAL
PPLICATI
1.25Msps Sample Rate
Power Dissipation: 160mW
71dB S/(N + D) and 82dB THD at Nyquist
No Pipeline Delay
Nap (7mW) and Sleep (10 W) Shutdown Modes
Operates with Internal 15ppm/ C Reference
or External Reference
True Differential Inputs Reject Common Mode Noise
20MHz Full Power Bandwidth Sampling
28-Pin SO Wide Package
Telecommunications
Digital Signal Processing
Multiplexed Data Acquisition Systems
High Speed Data Acquisition
Spectrum Analysis
Imaging Systems
+
2.5V Bipolar Input Range
(–2.5V TO 2.5V)
ANALOG INPUT
DIFFERENTIAL
PARALLEL
V
REF
0.1 F
12-BIT
Complete 1.25MHz, 12-Bit Sampling A/D Converter
OUTPUT
BUS
A
S
2.50V
PPLICATI
O
10
11
12
13
14
U
1
2
3
4
5
6
7
8
9
+A
–A
V
REFCOMP
AGND
D11(MSB)
D10
D9
D8
D7
D6
D5
D4
DGND
S
REF
IN
IN
LTC1410
NAP/SLP
CONVST
O
SHDN
OGND
BUSY
DV
AV
V
RD
U
DD
DD
CS
D0
D1
D2
D3
SS
28
27
26
25
24
23
22
21
20
19
18
17
16
15
LINES
–5V
P CONTROL
10 F
1410 TA01
0.1 F
10 F
A/D Converter with Shutdown
+
D
The LTC
A/D converter that draws only 160mW from 5V supplies.
This easy-to-use device includes a high dynamic range
sample-and-hold, a precision reference and requires no
external components. Two digitally selectable power shut-
down modes provide flexibility for low power systems.
The LTC1410’s full-scale input range is 2.5V. Maximum
DC specifications include 1LSB INL and 1LSB DNL over
temperature. Outstanding AC performance includes 71dB
S/(N + D) and 82dB THD at the Nyquist input frequency of
625kHz.
The unique differential input sample-and-hold can acquire
single-ended or differential input signals up to its 20MHz
bandwidth. The 60dB common mode rejection allows
users to eliminate ground loops and common mode noise
by measuring signals differentially from the source.
The ADC has a P compatible, 12-bit parallel output port.
There is no pipeline delay in the conversion results. A
separate convert start input and a data ready signal (BUSY)
ease connections to FIFOs, DSPs and microprocessors.
5V
, LTC and LT are registered trademarks of Linear Technology Corporation.
12-Bit, 1.25Msps Sampling
ESCRIPTIO
0.1 F
®
1410 is a 0.65 s, 1.25Msps, 12-bit sampling
Effective Bits and Signal-to-(Noise + Distortion)
12
10
8
6
4
2
0
1k
f
SAMPLE
U
vs Input Frequency
10k
= 1.25MHz
INPUT FREQUENCY (Hz)
NYQUIST
100k
1M
LTC1410
LTC1410 • TA02
10M
74
68
62
56
50
1

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LTC1410CG Summary of contents

Page 1

... The ADC has a P compatible, 12-bit parallel output port. There is no pipeline delay in the conversion results. A separate convert start input and a data ready signal (BUSY) ease connections to FIFOs, DSPs and microprocessors. , LTC and LT are registered trademarks of Linear Technology Corporation – ...

Page 2

... C. With Internal Reference (Notes CONDITIONS (Note 7) (Note OUT(REF) CONDITIONS 4.75V V 5.25V, – 5.25V High Between Conversions During Conversions – 2.5V < (– < 2. ORDER TOP VIEW PART NUMBER LTC1410CG LTC1410CSW 4 25 BUSY LTC1410IG 6 23 CONVST LTC1410ISW SHDN 9 20 NAP/SLP 10 19 OGND ...

Page 3

ACCURACY otherwise specifications are (Note 5) A SYMBOL PARAMETER S/( Signal-to-(Noise + Distortion) Ratio THD Total Harmonic Distortion Peak Harmonic or Spurious Noise IMD Intermodulation Distortion Full Power ...

Page 4

LTC1410 W U POWER REQUIRE E TS otherwise specifications are (Note 5) A SYMBOL PARAMETER P Power Dissipation D Nap Mode Sleep Mode CHARACTERISTICS range, otherwise specifications are at T ...

Page 5

W U TYPICAL PERFORMANCE CHARACTERISTICS S/( Input Frequency and Amplitude 0dB –20dB –60dB 1.25MHz SAMPLE 0 1k 10k ...

Page 6

LTC1410 CTIO (Pin 1): Positive Analog Input, 2.5V. IN – A (Pin 2): Negative Analog Input, 2.5V (Pin 3): 2.50V Reference Output. REF REFCOMP (Pin 4): 4.06V Reference Bypass Pin. ...

Page 7

TEST CIRCUITS Load Circuits for Access Timing DBN DBN (A) Hi AND (B) Hi APPLICATIONS INFORMATION CONVERSION DETAILS The LTC1410 uses a successive approximation algorithm ...

Page 8

LTC1410 U U APPLICATIONS INFORMATION DYNAMIC PERFORMANCE The LTC1410 has excellent high speed sampling capabil- ity. Fast Four Transform (FFT) test techniques are used to test the ADC’s frequency response, distortion and noise at the rated throughput. By applying a ...

Page 9

U U APPLICATIONS INFORMATION where V is the RMS amplitude of the fundamental fre- 1 quency and V through V are the amplitudes of the 2 n second through nth harmonics. THD vs Input Frequency is shown in Figure 4. ...

Page 10

LTC1410 U U APPLICATIONS INFORMATION capacitors at the end of conversion. During conversion the analog inputs draw only a small leakage current. If the source impedance of the driving circuit is low then the LTC1410 inputs can be driven directly. ...

Page 11

U U APPLICATIONS INFORMATION easily overdriven in applications where an external refer- ence is required. The reference amplifier provides buffer- ing between the internal reference and the capacitive DAC. The reference amplifier compensation pin REFCOMP (Pin 4), must be bypassed ...

Page 12

LTC1410 U U APPLICATIONS INFORMATION High quality tantalum and ceramic bypass capacitors should be used at the and REFCOMP pins shown in the Typical Application on the first page of this data sheet. Bypass ...

Page 13

U U APPLICATIONS INFORMATION Power Shutdown The LTC1410 provides two power shutdown modes, Nap and Sleep, to save power during inactive periods. The Nap mode reduces the power by 95% and leaves only the digital logic and reference powered up. ...

Page 14

LTC1410 U U APPLICATIONS INFORMATION CONVST BUSY DATA Figure 14. Mode 1a. CONVST Starts a Conversion. Data Outputs Always Enabled (CONVST = CONVST BUSY DATA (N – 1) ...

Page 15

... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 16

... S28 (WIDE) 0996 300ksps SAMPLE 100ksps 140ksps SAMPLE 1410fa LT/TP 0399 2K REV A • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1995 ...

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