Datasheet LTC1410 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | 12-Bit, 1.25Msps, Sampling A/D Converter with Shutdown |
| Pages / Page | 16 / 1 — FEATU. DESCRIPTIO. 1.25Msps Sample Rate. Power Dissipation: 160mW. 71dB … |
| File Format / Size | PDF / 162 Kb |
| Document Language | English |
FEATU. DESCRIPTIO. 1.25Msps Sample Rate. Power Dissipation: 160mW. 71dB S/(N + D) and 82dB THD at Nyquist. APPLICATI
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LTC1410 12-Bit, 1.25Msps Sampling A/D Converter with Shutdown
U FEATU S RE DESCRIPTIO
■
1.25Msps Sample Rate
The LTC®1410 is a 0.65µs, 1.25Msps, 12-bit sampling ■
Power Dissipation: 160mW
A/D converter that draws only 160mW from ±5V supplies. ■
71dB S/(N + D) and 82dB THD at Nyquist
This easy-to-use device includes a high dynamic range ■ No Pipeline Delay sample-and-hold, a precision reference and requires no ■ Nap (7mW) and Sleep (10µW) Shutdown Modes external components. Two digitally selectable power shut- ■ Operates with Internal 15ppm/°C Reference down modes provide flexibility for low power systems. or External Reference The LTC1410’s full-scale input range is ±2.5V. Maximum ■ True Differential Inputs Reject Common Mode Noise DC specifications include ±1LSB INL and ±1LSB DNL over ■ 20MHz Full Power Bandwidth Sampling temperature. Outstanding AC performance includes 71dB ■ ±2.5V Bipolar Input Range S/(N + D) and 82dB THD at the Nyquist input frequency of ■ 28-Pin SO Wide Package 625kHz.
O U
The unique differential input sample-and-hold can acquire
APPLICATI S
single-ended or differential input signals up to its 20MHz ■ bandwidth. The 60dB common mode rejection allows Telecommunications ■ users to eliminate ground loops and common mode noise Digital Signal Processing ■ by measuring signals differentially from the source. Multiplexed Data Acquisition Systems ■ High Speed Data Acquisition The ADC has a µP compatible, 12-bit parallel output port. ■ Spectrum Analysis There is no pipeline delay in the conversion results. A ■ Imaging Systems 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.
O U TYPICAL APPLICATI Complete 1.25MHz, 12-Bit Sampling A/D Converter Effective Bits and Signal-to-(Noise + Distortion) vs Input Frequency
LTC1410 5V DIFFERENTIAL 1 28 12 74 ANALOG INPUT +AIN AVDD 2 27 (–2.5V TO 2.5V) + 68 –A DV –5V IN DD 0.1µF 3 26 10µF 2.50V 10 NYQUIST 62 V V V REF SS REF OUTPUT 4 25 10µF 0.1µF 56 + REFCOMP BUSY 5 24 8 50 S/(N + D) (dB) 10 0.1 µF µF AGND CS 6 23 D11(MSB) CONVST µP CONTROL 7 22 6 LINES D10 RD 8 21 D9 SHDN 9 20 EFFECTIVE BITS 4 D8 NAP/SLP 10 19 D7 OGND 12-BIT 11 18 2 D6 D0 PARALLEL 12 17 f BUS D5 D1 SAMPLE = 1.25MHz 13 16 0 D4 D2 1k 10k 100k 1M 10M 14 15 DGND D3 INPUT FREQUENCY (Hz) LTC1410 • TA02 1410 TA01 1
U FEATU S RE DESCRIPTIO
■
1.25Msps Sample Rate
The LTC®1410 is a 0.65µs, 1.25Msps, 12-bit sampling ■
Power Dissipation: 160mW
A/D converter that draws only 160mW from ±5V supplies. ■
71dB S/(N + D) and 82dB THD at Nyquist
This easy-to-use device includes a high dynamic range ■ No Pipeline Delay sample-and-hold, a precision reference and requires no ■ Nap (7mW) and Sleep (10µW) Shutdown Modes external components. Two digitally selectable power shut- ■ Operates with Internal 15ppm/°C Reference down modes provide flexibility for low power systems. or External Reference The LTC1410’s full-scale input range is ±2.5V. Maximum ■ True Differential Inputs Reject Common Mode Noise DC specifications include ±1LSB INL and ±1LSB DNL over ■ 20MHz Full Power Bandwidth Sampling temperature. Outstanding AC performance includes 71dB ■ ±2.5V Bipolar Input Range S/(N + D) and 82dB THD at the Nyquist input frequency of ■ 28-Pin SO Wide Package 625kHz.
O U
The unique differential input sample-and-hold can acquire
APPLICATI S
single-ended or differential input signals up to its 20MHz ■ bandwidth. The 60dB common mode rejection allows Telecommunications ■ users to eliminate ground loops and common mode noise Digital Signal Processing ■ by measuring signals differentially from the source. Multiplexed Data Acquisition Systems ■ High Speed Data Acquisition The ADC has a µP compatible, 12-bit parallel output port. ■ Spectrum Analysis There is no pipeline delay in the conversion results. A ■ Imaging Systems 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.
O U TYPICAL APPLICATI Complete 1.25MHz, 12-Bit Sampling A/D Converter Effective Bits and Signal-to-(Noise + Distortion) vs Input Frequency
LTC1410 5V DIFFERENTIAL 1 28 12 74 ANALOG INPUT +AIN AVDD 2 27 (–2.5V TO 2.5V) + 68 –A DV –5V IN DD 0.1µF 3 26 10µF 2.50V 10 NYQUIST 62 V V V REF SS REF OUTPUT 4 25 10µF 0.1µF 56 + REFCOMP BUSY 5 24 8 50 S/(N + D) (dB) 10 0.1 µF µF AGND CS 6 23 D11(MSB) CONVST µP CONTROL 7 22 6 LINES D10 RD 8 21 D9 SHDN 9 20 EFFECTIVE BITS 4 D8 NAP/SLP 10 19 D7 OGND 12-BIT 11 18 2 D6 D0 PARALLEL 12 17 f BUS D5 D1 SAMPLE = 1.25MHz 13 16 0 D4 D2 1k 10k 100k 1M 10M 14 15 DGND D3 INPUT FREQUENCY (Hz) LTC1410 • TA02 1410 TA01 1
